DOCSLIB.ORG

Gemstone Item No Facet Weight in Ct Cabochon Weight in Ct Total

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Gemstone Item No Facet Weight in Ct Cabochon Weight in Ct Total Inventory of Cut and Polished Gems From June 1, 2021 Gemstone Item No Facet Weight in ct Cabochon Weight in ct Total Facet Price Total Cabochon Price Color Shape Facet piece Cabochon Piece 1 Agate NIL 26.15 $ 52 Sky Blue Pear 1 2 Agate NIL 19.54 $ 39 Sky Blue oval 1 3 Agate NIL 17.09 $ 34 Sky Blue Trilliant 1 4 Agate NIL 17.80 $ 36 Sky Blue Trilliant 1 5 Agate NIL 7.07 $ 14 Sky Blue oval 1 6 Agate NIL 7.37 $ 15 Sky Blue Cushion 1 7 Agate NIL 22.34 $ 45 Sky Blue Pear 1 8 Agate NIL 21.35 $ 43 Sky Blue Cushion 1 9 Agate NIL 9.38 $ 19 Sky Blue oval 1 10 Agate NIL 10.02 $ 20 Sky Blue Cushion 1 11 Agate NIL 22.14 $ 44 Sky Blue Marquise 1 12 Agate NIL 16.26 $ 33 Sky Blue oval 1 13 Agate NIL 20.51 $ 41 Sky Blue Pear 1 14 Agate NIL 15.00 $ 30 Sky Blue Marquise 1 15 Agate NIL 23.43 $ 47 Sky Blue oval 1 16 Agate NIL 27.30 $ 55 Sky Blue oval 1 17 Agate NIL 10.86 $ 22 Sky Blue Cushion 1 18 Agate NIL 12.83 $ 26 Sky Blue oval 1 19 Agate NIL 14.92 $ 30 Sky Blue Cushion 1 20 Agate NIL 5.32 $ 11 Sky Blue Trilliant 1 21 Agate NIL 3.56 $ 7 Sky Blue Trilliant 1 22 Agate NIL 4.18 $ 8 Sky Blue Trilliant 1 23 Agate NIL 10.15 $ 20 Sky Blue Round 1 24 Agate NIL 6.10 $ 12 Sky Blue Trilliant 1 25 Agate NIL 16.68 $ 33 L/Blue Oval 1 26 Agate NIL 6.84 $ 14 L/Blue Oval 1 27 Agate NIL 15.56 $ 31 L/Blue Trilliant 1 28 Agate NIL 8.54 $ 17 L/Blue Cushion 1 29 Agate NIL 19.30 $ 39 Sky Blue Oval 1 30 Agate NIL 7.41 $ 15 Sky Blue Cushion 1 31 Agate NIL 7.48 $ 15 Sky Blue Cushion 1 32 Agate NIL 4.96 $ 10 Sky Blue Round 1 33 Agate NIL 9.29 $ 19 Sky Blue Oval 1 34 Agate NIL 19.81 $ 40 Sky Blue Trilliant 1 35 Agate NIL 27.82 $ 56 Sky Blue Trilliant 1 36 Agate NIL 15.09 $ 30 Sky Blue Trilliant 1 37 Agate NIL 11.92 $ 24 Sky Blue Oval 1 38 Agate NIL 9.60 $ 19 Sky Blue Cushion 1 39 Agate NIL 8.16 $ 16 Sky Blue Oval 1 40 Agate NIL 8.49 $ 17 Sky Blue Marquise 1 41 Agate NIL 13.46 $ 27 Sky Blue Trilliant 1 42 Agate NIL 10.44 $ 21 Sky Blue Trilliant 1 43 Agate NIL 6.11 $ 12 Sky Blue Pear 1 44 Agate NIL 8.90 $ 18 Sky Blue Marquise 1 45 Agate NIL 5.94 $ 12 Sky Blue Marquise 1 46 Agate NIL 5.63 $ 11 Sky Blue Oval 1 47 Agate NIL 61.06 $ 122 Sky Blue Pear 1 48 Agate NIL 21.59 $ 43 Sky Blue Trilliant 1 49 Agate NIL 33.78 $ 68 Sky Blue Oval 1 50 Agate NIL 20.83 $ 42 Sky Blue Cushion 1 51 Agate NIL 32.16 $ 64 Sky Blue Marquise 1 52 Agate NIL 19.24 $ 38 Sky Blue Cushion 1 53 Agate NIL 18.90 $ 38 Sky Blue Oval 1 54 Agate NIL 17.65 $ 35 Sky Blue Pear 1 55 Agate NIL 9.38 $ 19 Sky Blue Marquise 1 56 Agate NIL 13.18 $ 26 Sky Blue Trilliant 1 57 Agate NIL 11.85 $ 24 Sky Blue Marquise 1 58 Agate NIL 13.02 $ 26 Sky Blue Trilliant 1 59 Agate NIL 7.76 $ 16 Sky Blue Cushion 1 60 Agate NIL 19.28 $ 39 Sky Blue Cushion 1 61 Agate NIL 8.88 $ 18 Sky Blue Marquise 1 62 Agate NIL 10.09 $ 20 Sky Blue Oval 1 63 Agate NIL 13.85 $ 28 Sky Blue Cushion 1 64 Agate NIL 12.50 $ 25 Sky Blue Trilliant 1 65 Agate NIL 3.50 $ 7 Sky Blue Marquise 1 66 Agate NIL 9.09 $ 18 Sky Blue Pear 1 67 Agate NIL 18.54 $ 37 Sky Blue Oval 1 68 Agate NIL 6.21 $ 12 Sky Blue Cushion 1 69 Agate NIL 8.79 $ 18 Sky Blue Trilliant 1 70 Agate NIL 7.33 $ 15 Sky Blue Trilliant 1 71 Agate NIL 15.43 $ 31 Sky Blue Oval 1 72 Agate NIL 17.25 $ 35 Sky Blue Oval 1 73 Agate NIL 6.49 $ 13 Sky Blue Pear 1 74 Agate NIL 6.91 $ 14 Sky Blue Round 1 75 Agate NIL 11.46 $ 23 Sky Blue Trilliant 1 76 Agate NIL 5.00 $ 10 Sky Blue Round 1 77 Agate NIL 9.52 $ 19 Sky Blue Marquise 1 78 Agate NIL 16.65 $ 33 Sky Blue Oval 1 79 Agate NIL 7.15 $ 14 Sky Blue Trilliant 1 80 Agate NIL 3.98 $ 8 Sky Blue Round 1 81 Agate NIL 4.50 $ 9 Sky Blue Cushion 1 82 Agate NIL 8.41 $ 17 Orange Cushion 1 83 Agate NIL 4.38 $ 9 Orange Cushion 1 84 Agate NIL 4.92 $ 10 Orange Oval 1 85 Agate NIL 15.79 $ 32 Orange Oval 1 www.moreshinegem.com 1 Inventory of Cut and Polished Gems From June 1, 2021 Gemstone Item No Facet Weight in ct Cabochon Weight in ct Total Facet Price Total Cabochon Price Color Shape Facet piece Cabochon Piece 86 Agate NIL 11.41 $ 23 Orange Cushion 1 87 Agate NIL 11.34 $ 23 Orange Cushion 1 88 Agate NIL 11.56 $ 23 Orange Pear 1 89 Agate NIL 5.85 $ 12 Orange Pear 1 90 Agate NIL 13.01 $ 26 Orange Oval 1 91 Agate NIL 12.39 $ 25 Orange Cushion 1 92 Agate NIL 8.31 $ 17 Orange Oval 1 93 Agate NIL 6.21 $ 12 Orange Oval 1 94 Agate NIL 6.36 $ 13 Orange Cushion 1 95 Agate NIL 34.00 $ 68 Orange Oval 1 96 Agate NIL 27.16 $ 54 Orange Cushion 1 97 Agate NIL 16.07 $ 32 Pear 1 98 Agate NIL 170.00 $ 340 Brown Oval 1 99 Agate NIL 12.11 $ 24 Brown Pear 1 100 Agate NIL 11.64 $ 23 D/Brown Oval 1 101 Agate NIL 18.89 $ 38 Orange Cushion 1 102 Agate NIL 11.94 $ 24 Orange Pear 1 103 Agate NIL 12.55 $ 25 Brown/Yellow Oval 1 104 Agate NIL 8.01 $ 16 L/Orange Oval 1 105 Agate NIL 24.05 $ 48 Oval 1 106 Agate NIL 18.33 $ 37 Cushion 1 107 Agate NIL 4.50 $ 9 Sky Blue Trilliant 1 108 Agate NIL 4.40 $ 9 Sky Blue Trilliant 1 109 Agate NIL 6.85 $ 14 Sky Blue Trilliant 1 110 Agate NIL 6.30 $ 13 Sky Blue Trilliant 1 111 Agate NIL 6.90 $ 14 Sky Blue Trilliant 1 112 Agate NIL 5.85 $ 12 Sky Blue Trilliant 1 113 Agate NIL 11.15 $ 22 Sky Blue Trilliant 1 114 Agate NIL 8.15 $ 16 Sky Blue Trilliant 1 115 Agate NIL 9.00 $ 18 Sky Blue Trilliant 1 116 Agate NIL 17.80 $ 36 Sky Blue Trilliant 1 117 Agate NIL 13.90 $ 28 Sky Blue Trilliant 1 118 Agate NIL 8.95 $ 18 Sky Blue Trilliant 1 119 Agate NIL 12.00 $ 24 Sky Blue Trilliant 1 120 Agate NIL 17.65 $ 35 Sky Blue Trilliant 1 121 Agate NIL 28.45 $ 57 Sky Blue Trilliant 1 122 Agate NIL 37.95 $ 76 Sky Blue Pear 1 123 Agate NIL 20.55 $ 41 Sky Blue Pear 1 124 Agate NIL 8.25 $ 17 Sky Blue Pear 1 125 Agate NIL 7.65 $ 15 Sky Blue Pear 1 126 Agate NIL 6.75 $ 14 Sky Blue Pear 1 127 Agate NIL 15.65 $ 31 Sky Blue oval 1 128 Agate NIL 19.60 $ 39 Sky Blue oval 1 129 Agate NIL 13.70 $ 27 Sky Blue oval 1 130 Agate NIL 14.15 $ 28 Sky Blue Oval 1 131 Agate NIL 10.45 $ 21 Sky Blue oval 1 132 Agate NIL 13.35 $ 27 Sky Blue oval 1 133 Agate NIL 9.70 $ 19 Sky Blue oval 1 134 Agate NIL 10.75 $ 22 Sky Blue oval 1 135 Agate NIL 17.05 $ 34 Sky Blue Cushion 1 136 Agate NIL 10.05 $ 20 Sky Blue Cushion 1 137 Agate NIL 10.50 $ 21 Sky Blue Cushion 1 138 Agate NIL 14.00 $ 28 Sky Blue Cushion 1 139 Agate NIL 12.55 $ 25 Sky Blue Cushion 1 140 Agate NIL 9.25 $ 19 Sky Blue Cushion 1 141 Agate NIL 8.55 $ 17 Sky Blue Cushion 1 142 Agate NIL 8.80 $ 18 Sky Blue Cushion 1 143 Agate NIL 6.35 $ 13 Sky Blue Cushion 1 144 Agate NIL 7.95 $ 16 Sky Blue Cushion 1 145 Agate NIL 15.50 $ 31 Sky Blue Marquise 1 146 Agate NIL 13.20 $ 26 Sky Blue Marquise 1 147 Agate NIL 8.50 $ 17 Sky Blue Marquise 1 148 Agate NIL 9.15 $ 18 Sky Blue Marquise 1 149 Agate NIL 6.45 $ 13 Sky Blue Marquise 1 150 Agate NIL 5.50 $ 11 Sky Blue Marquise 1 151 Agate NIL 10.50 $ 21 Sky Blue Round 1 152 Amazonite NIL 16.50 $ 33 Trilliant 1 153 Amazonite NIL 27.18 $ 54 Green Pear 1 154 Amazonite NIL 33.14 $ 66 Bicolor Cushion 1 155 Amazonite NIL 18.44 $ 37 Bicolor Trilliant 1 156 Amazonite NIL 12.50 $ 25 Bicolor Cushion 1 157 Amazonite NIL 32.89 $ 66 Pear 1 158 Amazonite NIL 13.80 $ 28 Marquise 1 159 Amazonite NIL 10.19 $ 20 Marquise 1 160 Amazonite NIL 18.68 $ 37 Oval 1 161 Amazonite NIL 18.54 $ 37 Trilliant 1 162 Amazonite NIL 12.07 $ 24 Cushion 1 163 Amazonite NIL 10.80 $ 22 Oval 1 164 Amazonite NIL 12.25 $ 25 Oval 1 165 Amazonite NIL 9.68 $ 19 Round 1 166 Amazonite NIL 9.59 $ 19 Round 1 167 Amazonite NIL 17.40 $ 35 Oval 1 168 Amazonite NIL 18.87 $ 38 Cushion 1 169 Amazonite NIL 9.00 $ 18 Pear 1 170 Amazonite NIL 7.19 $ 14 Oval 1 www.moreshinegem.com 2 Inventory of Cut and Polished Gems From June 1, 2021 Gemstone Item No Facet Weight in ct Cabochon Weight in ct Total Facet Price Total Cabochon Price Color Shape Facet piece Cabochon Piece 171 Amazonite NIL 8.52 $ 17 Cushion 1 172 Amazonite NIL 5.86 $ 12 Cushion 1 173 Amazonite NIL 28.62 $ 57 Green Pear 1 174 Amazonite NIL 19.13 $ 38 Green Oval 1 175 Amazonite NIL 19.13 $ 38 Green Trilliant 1 176 Amazonite NIL 18.21 $ 36 Green Cushion 1 177 Amazonite NIL 10.67 $ 21 Green Oval 1 178 Amazonite NIL 32.71 $ 65 Green Pear 1 179 Amazonite NIL 29.97 $ 60 Green Oval 1 180 Amazonite NIL 17.46 $ 35 Green Trilliant 1 181 Amazonite NIL 6.58 $ 13 Green Cushion 1 182 Amazonite NIL 7.76 $ 16 Green Trilliant 1 183 Amazonite NIL 32.67 $ 65 Green Oval 1 184 Amazonite NIL 23.46 $ 47 Oval 1 185 Amazonite NIL 27.46 $ 55 Marquise 1 186 Amazonite NIL 16.97 $ 34 Pear 1 187 Amazonite NIL 15.66 $ 31 Trilliant 1 188 Amazonite NIL 16.22 $ 32 Pear 1 189 Amazonite NIL 10.07 $ 20 Oval 1 190 Amazonite NIL 8.51 $ 17 Cushion 1 191 Amazonite NIL 10.77 $ 22 Cushion 1 192 Amazonite NIL 2.99 $ 6 Oval 1 193 Amazonite NIL 9.20 $ 18 Oval 1 194 Amazonite NIL 11.25 $ 23 Pear 1 195 Amazonite NIL 15.38 $ 31 Cushion 1 196 Amazonite NIL 9.10 $ 18 Oval 1 197 Amazonite NIL 16.90 $ 34 Green Cushion 1 198 Amazonite NIL 16.85 $ 34 Green Cushion 1 199 Amazonite NIL 22.20 $ 44 Green Pear 1 200 Amazonite NIL 15.95 $ 32 Green Pear 1 201 Amazonite NIL 12.00 $ 24 Green Trilliant 1 202 Amazonite NIL 10.60 $ 21 Green Trilliant 1 203 Amazonite NIL 8.70 $ 17 Green Trilliant 1 204 Amazonite NIL 16.65 $ 33 Green Oval 1 205 Amazonite NIL 16.15 $ 32 Green Oval 1 206 Amazonite NIL 14.75 $ 30 Green Marquise 1 207 Amazonite NIL 11.10 $ 22 Green Marquise 1 208 Amazonite NIL 12.00 $ 24 Green Round 1 209 Amazonite NIL 12.75 $ 26 Green Marquise 1 210 Amazonite NIL 16.65 $ 33 Green Trilliant 1 211 Amazonite NIL 13.45 $ 27 Green Cushion 1 212 Amazonite NIL 16.35 $ 33 Green Oval 1 213 Amazonite NIL 7.65 $ 15 Green Trilliant 1 214 Amazonite NIL 8.70 $ 17 Green Trilliant 1 215 Amazonite NIL 4.20 $ 8 Green Cushion 1 216 Amethyst NIL 4.49 $ 9 Purple Oval 1 217 Amethyst NIL 3.50
Load more

Recommended publications
  • Estimating Weights of Mounted Colored Gemstones
    NOTE S AND NE W TECHNIQUES ESTI MATING WEIGHTS OF MOUNTED COL ORED GEMS TONES By Charles I. Carmona Updated formulas are presented for estimating the weights of mounted col - ored gemstones. These formulas are derived from measurements and weights of thousands of German-cut calibrated amethysts and citrines, rep - resenting most commercially available shapes and sizes. As with the formu - las taught by GIA, the dimensions of a stone are multiplied by its specific gravity and by a “shape factor” that is determined by the stone’s face-up outline. This article also illustrates how the shape factor changes over a con - tinuum of common face-up outlines. As in previous formulas, a separate weight correction factor is applied to stones that show proportion variations in profile view. Estimating weights of mounted gemstones has gemstone weights, or negotiating the sale or pawn become a common routine for many of today’s jew - of jewelry. elry tradespeople. Weight estimation is necessary Over the past two decades, estate jewelry has when the stone cannot be removed from its mount - become increasingly important in the market (fig - ing, either because the client will not allow it or ure 1). No longer is all second-hand jewelry simply because the piece might be damaged. This is typi - melted down and the stones recut for remounting. cally the case with estate jewelry (i.e., jewelry that In fact, more jewelers are entering this market, at has been previously owned). Estimating weight both wholesale and retail levels, as witnessed by might be done when performing an appraisal, calcu - regular estate jewelry sections in the trade pres s lating an offer to purchase jewelry with unknown (see, e.g., Jewelers’ Circular-Keystone and Professional Jeweler ), the growth of estate jewelry sections at trade shows (such as the Las Vegas JCK Show), and the prevalence of this jewelry in on-line bul - letin boards (e.g., http:// www.diamonds.net , ABOUT THE AUTHOR http://www.poly gon.net) and Web sites (e.g.
    [Show full text]
  • Gulfport Gems
    Est. 1979 Harrison County Gem & Mineral Society, Inc. Gulfport Gems Volume 40 September 2019 Number 9 Member of the American & Southeast Federation of Mineralogical Society P.O. Box 10136 www.facebook.com/gulfportgems Gulfport, Ms. 39505 Website: www.gulfportgems.org A message from the President. Notes from the editor . Nominating Committee Dear Members, Volunteers are needed to serve on the Nominating Committee to get candidates for Monica, Charlene and I are leaving on Sep- our board next year. tember first to go to William Holland for the week. For those of you that have been, you Please step up to this challenge. know what a wonderful experience it is. For Present Slate: October Election: November those of you that have not been, try it at least Sworn In: December Take Office: January once. It is truly worth your time. 49th Annual New Orleans Gem, I hope to have lots of new things to show at Mineral, Fossil & Jewelry Show the meeting. So far, I have not been disap- pointed. October 11th, 12th, & 13th Look forward to seeing everyone in a few Alario Center weeks. 2000 Segnette Blvd. Westwego, La. 70094 Sue West, President 10 am - 6 pm Fri & Sat 10 am - 4 pm Sunday Rocks, gems, minerals, and jewelry Displays Demonstrations Raffle Board Meeting Door prizes Gulfport Library - Old Hwy. 49 Shop for the holidays! Next Meeting will be in October See page 15 “”Shows & Events” for more details Gulfport Gems Vol. 40 Number 9 1 September 2019 Harrison County Gem & Mineral Society Harrison County Gem & Mineral Society Webpage and Editor.
    [Show full text]
  • Some Gemological Challenges in Identifying Black Opaque Gem
    By Mary L.Johnson, Shane F, McClure, and Dino G. DeGhionno Among the most difficult gems to identi- ne of the most challenging problems in gemology is that fy are those that are black and opaque (or of determining the identity of a blaclz opaque gem inate- nearly so). In general, any gem material 0rial-hereafter called a "blaclz opaque." Such materials are can be opaque because of inclusions, any a mainstay of the jewelry business, primarily as side stones, dec- black opaque material can be fashioned, orative elements in multi-stone mosaics, and in men's jewelry. and any porous material can be dyed. Treated blaclz chalcedony ("black onyx"), black jade, and Thus, to identify a black opaque materi- al, every possible mineral, and many hematite traditionally have been the black opaques in greatest rocks and manufactured substances, demand. As a variety of quartz, "black onyx" is probably the must be considered. Microscopic appear- most familiar durable black opaque to lapidaries and gem cut- ance, refractive index, specific gravity, ters. Today, it is a popular medium for artistic carvings, many of and other properties (such as magnetism which have been incorporated into fine jewelry (figure 1). or radioactivity) provide useful clues, but In recent years, various materials have been misrepresent- in most cases advanced identification ed as "black onyx" or "black jade" to meet the trade's need for techniques (X-raydiffraction, EDXRF calibrated goods in high-volume markets. Members of the spectroscopy) are necessary, and even trade, in turn, have been sending samples to identification lab- these may not be conclusive.
    [Show full text]
  • Faberge : the Imperial Easter Eggs Pdf, Epub, Ebook
    FABERGE : THE IMPERIAL EASTER EGGS PDF, EPUB, EBOOK Prestel | 30 pages | 23 Oct 2003 | PRESTEL | 9783791330181 | English, German | Munich, Germany Faberge : The Imperial Easter Eggs PDF Book The egg currently resided in the Faberge Museum Saint Petersburg. Its original cost was 16, silver rubles; it belongs to the collection of imperial eggs bought by Viktor Vekselberg and is now on display at the Faberge Museum. Two-portrait diamond on each side of the egg. Its original cost was 7, rubles and is currently owned by the Edouard and Maurice Sandoz Foundation. Log in. The exterior is decorated with six vertical lines of diamonds, an emerald placed at each intersecting panels. The information about this object, including provenance information, is based on historic information and may not be currently accurate or complete. Perkhin and decorated with traditional Russian enamel motifs, wrapped with a map of Imperial Russia showing the new Great Siberian Rail Line, the longest on earth; its tiny train has diamond headlights, a ruby lamp and rock crystal windows. Chased gold drapes of laurels on top of the egg, supported by a square-shaped base with enameled green and gold bellflowers, acanthus and laurel swags. In he returned to St. The egg houses a rotating globe, halved and enameled with a royal blue color. Nobel Ice Egg Also referred to as the snowflake egg, made by the house of Faberge for Dr, Emmanuel Noble as a present for a friend. His most distinguished clients: Dagmar and Alix, mother and daughter-in-law, respectively renamed Maria and Alexandra Feodorovna Romanova.
    [Show full text]
  • Lapidary Guild
    LAPIDARY GUILD April 2018 Issue Beginner Issue Where did gem cutting Issue No 1 * November 2016 get it’s start? by Gerald Wykoff, CSM GG Where did gem cutting get it’s start? 2 em cutting, or lapidary, most The breakage provided random Guide to Gem Cutting Terms 3 Gcertainly got its start as an fragments, but ultimately offshoot of mundane everyday experimentation demonstrat- activities. A stone may have fallen ed that breakage could also be Gemstone Orientation For 9 into a fire where the heat caused it achieved with some semblance to break or flake. Perhaps a sharp of control. Beginners edge resulted. This same knowledge of relative Certainly, flint and other hard hardness led to bruting, the shap- Lapidary Fundamentals: 11 stone possess sharp edges, but a ing of a gem specimen by rubbing blade-like cutting edge on a newly one mineral against another Cabochon Cutting flaked piece of rock suggested harder mineral. The slow and some very interesting possibilities. tedious practice of bruting was used for centuries until more Rock Tumbling: 17 In prehistoric times, man refined techniques were intro- hammered tools from stone, duced. Given the early date, Directions for Turning Rough Rocks into presumably smacking one stone historians are reluctant to Beautiful Tumbled Stones against another. He scratched attribute anything quite so intel- and chiseled out symbols and lectual as an understanding of primitive writings on hard rock cleavages. It was satisfactory and cave walls – and gradually that the breaking, chipping, or Artist Corner: Featuring Keith Cler 21 learned the great secret: some flaking of a stone could be stones are harder than others and disciplined…made to occur in de- therefore they are more capable sired directions and depth.
    [Show full text]
  • Dual-Color Double Stars in Ruby, Sapphire, and Quartz
    FEATURE ARTICLES DUAL -C OLOR DOUBLE STARS IN RUBY , SAPPHIRE , AND QUARTZ : CAUSE AND HISTORICAL ACCOUNT Karl Schmetzer, Martin P. Steinbach, H. Albert Gilg, and Andrea R. Blake A largely overlooked form of asterism consisting of dual-color double stars is found in natural sapphire, in diffusion-treated and non-diffusion-treated synthetic rubies and sapphires, and in natural quartz. To characterize and explain this phenomenon, examples of these materials were examined. In transparent or translucent samples, an optical pattern of a white six-rayed star and a bodycolored (e.g., red, orange, yellow, green, blue) six-rayed star was frequently observed. Grinding and repolishing experiments showed that the asterism of part of the synthetic samples was produced or enhanced by diffusion treat - ment. The mechanism responsible for the formation of the dual-color double stars is discussed. To pro - duce the pattern, acicular inclusions must either be present in relatively thin layers confined to the dome and the base of diffusion-treated ruby or sapphire cabochons, or be distributed throughout the complete corundum (natural or synthetic) or quartz samples. The white star is caused by interaction of light with the upper layer of the cabochon’s dome. The bodycolored star, in contrast, is generated by light that enters the cabochon, is reflected and scattered at the base layer of the cabochon, and then travels a sec - ond time back through the body of the sample. As further prerequisites for observation of the phenom - enon, the gemstones must be transparent or translucent, with polished base and dome. A historical summary of the manufacture and improvement of synthetic asteriated corundum by dif - fusion treatment offers additional insight into dual-color double-star stones.
    [Show full text]
  • NVMC Jan 2013 Newsletter.Pdf
    The Mineral Newsletter Meeting: January 28 Time: 7:45–9:00 p.m. Long Branch Nature Center, 625 S. Carlin Springs Rd. Arlington, VA 22204 Next Meeting Program: Red-Gold and Volume 54, No. 1 Polished Agates January 2013 by Wayne Sukow You can also explore our club website: Editor’s note: The program http://www.novamineralclub.org/ is a slightly abridged ver- sion of Wayne’s award- winning presentation “Red- These agates have a remarkable combination of pastel Gold and Polished Agates: Upper Michigan’s Hidden colors, including cream, pink, tan, and green bands Treasures.” with diverse forms of copper, ranging from flecks, to pea-size masses, to finely detailed replacement of the The program takes you on a treasure-hunting field agate fortification bands. trip to Upper Michigan’s famed Copper Country. You arrive on a sailboat in Copper Harbor, MI, just in time Before the sun sets on the program, there’s a final for a gorgeous sunset—a red-gold theme that contin- quick look at more collector copper replacement ag- ues on the drive to the Wolverine 2 Mine. ates. You’ll want to add several of these rare copper agates to your lapidary or mineral collection. They Then the fun really begins as you view copper re- are unusual, and the supply is nearing exhaustion as placement agates in four collecting bags. The first bag has showy collector agates, some with detailed the mine dumps are crushed for roadfill. and faithful reproductions of portions of fortification bands. Lake Superior Agates Then comes a bag with both native copper and unu- by Kathy Hrechka sual copper minerals as inclusions.
    [Show full text]
  • Summer 2020 Gems & Gemology
    SUMMER 2020 VOLUME LVI THE QUARTERLY JOURNAL OF THE GEMOLOGICAL INSTITUTE OF AMERICA Naturally Colored Yellow and Orange Diamonds New Technique for Separating Natural from Laboratory-Grown Diamond History of the Chivor Emerald Mine, Part II Optical Whitening and Brightening of Pearls Summer 2020 VOLUME 56, No. 2 EDITORIAL 193 Yellow and Orange Diamonds, New Identification Techniques, and the Chronicles of Chivor Duncan Pay FEATURE ARTICLES 194 Naturally Colored Yellow and Orange Gem Diamonds: The Nitrogen Factor Christopher M. Breeding, Sally Eaton-Magaña, and James E. Shigley Presents the four major groups of defects responsible for the color in nearly all yellow and p. 195 orange diamonds. 220 Separation of Natural from Laboratory-Grown Diamond Using Time-Gated Luminescence Imaging Colin D. McGuinness, Amber M. Wassell, Peter M.P. Lanigan, and Stephen A. Lynch Researchers from De Beers Group Technology present a technique that expands on the surface luminescence used in the DiamondView instrument to provide additional imaging information and quickly distinguish colorless or near-colorless natural diamond from laboratory-grown diamond. 230 History of the Chivor Emerald Mine, Part II (1924–1970): Between Insolvency and Viability p. 255 Karl Schmetzer, Gérard Martayan, and Andrea R. Blake Chronicles developments at the Chivor emerald mine in Colombia between 1924 and 1970, based on archival records. 258 Optical Whitening and Brightening of Pearls: A Fluorescence Spectroscopy Study Chunhui Zhou, Tsung-Han Tsai, Nicholas Sturman, Nanthaporn Nilpetploy, p. 261 Areeya Manustrong, and Kwanreun Lawanwong Presents a study that suggests optically brightened pearls can be consistently separated from non-brightened pearls using fluorescence spectroscopy.
    [Show full text]
  • Romanov News Новости Романовых
    Romanov News Новости Романовых By Paul Kulikovsky №85 April 2015 The reburial of Grand Duke Nicholas Nicholaievich Jr. and his wife Grand Duchess Anastasia Nicholaievna Thursday, April 30, 2015 at 10.40 the participants in the ceremony of reburial of Grand Duke Nicholas Nicholaievich (Jr.) and his wife Grand Duchess Anastasia gathered at the Grand Cathedral of the Donskoi Monastery in Moscow. A memorial service for was held headed by Vicar of the Donskoi Monastery Paramon, co-served by the monastery monks and clergy. 11.15, the 154 regiment carried the coffins out of the cathedral and put them on a hearse. A motorcade then drove to the memorial park complex in the Brethren Cemetery at Sokol. Before the entrance to the memorial complex was established a funeral procession with Honor Guard with drummers and flutists; ranks of the 154 regiment which carried the coffins with the remains; members of the Romanov family; and then officials and invited persons. Then arrived the Mayor of Moscow S. S. Sobyanin, who was met by Minister of Culture of Moscow Government A.V. Kibovsky. 12.10 started the funeral procession to the chapel, where it was met by the clergy of the Moscow diocese. Opening the ceremony, Chairman of the State Duma S.E Naryshkin reminded of the importance of the merits of the Grand Duke as the Supreme Commander of the Russian land and naval forces. During the First World War, the name of the Grand Duke became a symbol of Russian society and to all those who with the victory of Russia "tied their national liberation." - "Grand Duke Nicholas and his wife Grand Duchess Anastasia returned to their homeland.
    [Show full text]
  • SLABS to CABS: How to Make Lapidary Cabochons ©2006-2015 Inland Lapidary
    SLABS TO CABS: How to Make Lapidary Cabochons ©2006-2015 Inland Lapidary Creating beautiful, polished cabochons from slabbed rock is a rewarding process that (with a bit of practice) anyone can master. This guide will help you work through all of the steps required. You will need the user guides included with indicated machines for basic assembly and general operating instructions. We strongly suggest that you work through the process with practice pieces first. PLEASE, save that special slab for when you have a bit of experience with the machine. Remember to spend the necessary time at each step eliminating scratches before going on to the next step. There is no exact calculated time for each step, but with experience you will get a solid feel for what amount of grind- ing is necessary at each step of the process. No matter which step you are on, the following safety precautions and guidelines always apply: • It is extremely important to wear proper eye protection when using any machine. We highly recommend that you wear full coverage safety goggles rather than just glasses. • DO NOT wear loose clothing or any accessories (long necklaces, bracelets, shirts with long fringes, and similar) that might get caught by the machines during operation. • Use only in a properly grounded and tested outlet. Under NO circumstances should you override the ground- ing system or modify the plug. Most surge suppressors have a green light indicating that the plug is properly grounded. • Set up your machine on a sturdy, level work surface that is water tolerant and at a comfortable height for your frame.
    [Show full text]
  • Fabergé Eggs
    Fabergé Eggs PDF generated using the open source mwlib toolkit. See http://code.pediapress.com/ for more information. PDF generated at: Fri, 14 May 2010 17:17:53 UTC Contents Articles Introduction 1 Fabergé egg 1 House of Fabergé 6 Peter Carl Fabergé 12 Imperial Easter Eggs 16 Alexander III Commemorative (Fabergé egg) 16 Alexander III Equestrian (Fabergé egg) 17 Alexander III Portraits (Fabergé egg) 18 Alexander Palace (Fabergé egg) 19 Basket of Wild Flowers (Fabergé egg) 20 Bay Tree (Fabergé egg) 21 Blue Serpent Clock Egg 22 Bouquet of Lilies Clock (Fabergé egg) 24 Caucasus (Fabergé egg) 25 Cherub with Chariot Egg 26 Clover Leaf (Fabergé egg) 27 Colonnade (Fabergé egg) 28 Constellation (Fabergé egg) 30 Danish Palaces Egg 31 Diamond Trellis Egg 32 Empire Nephrite (Fabergé egg) 33 Gatchina Palace (Fabergé egg) 34 Hen with Sapphire Pendant 35 Imperial Coronation Egg 36 Karelian Birch (Fabergé egg) 40 Lilies of the Valley 41 Mauve (Fabergé egg) 42 Memory of Azov Egg 42 Mosaic (Fabergé egg) 44 Moscow Kremlin (Fabergé egg) 45 Napoleonic (Fabergé egg) 46 Nécessaire Egg 48 Order of St. George (Fabergé egg) 49 Peacock (Fabergé egg) 50 Pelican (Fabergé egg) 52 Peter the Great (Fabergé egg) 54 Red Cross with Imperial Portraits 56 Red Cross with Triptych (Fabergé egg) 58 Renaissance (Fabergé egg) 59 Rock Crystal (Fabergé egg) 61 Romanov Tercentenary (Fabergé egg) 63 Rose Trellis (Fabergé egg) 65 Rosebud (Fabergé egg) 66 Royal Danish (Fabergé egg) 67 Standart Yacht (Fabergé egg) 68 Steel Military (Fabergé egg) 69 Swan (Fabergé egg) 70 Trans- Siberian
    [Show full text]
  • Rare Jewelry & Objets from the Collection
    Rare Jewelry & Objets from the Collection Eleuteri is recognized around the world as a leading source of and authority on rare jewelry and objets d’art. Father and son team Carlo and Wagner Eleuteri share a discerning curatorial eye for acquiring unique and important creations. These are some of the most memorable examples. BVLGARI A pair of cabochon ruby and diamond double clip brooches, circa 1960s. For- merly in the collection of Italian Dolce Vita actress Giovanna Ralli. conic brooches, earrings, and I rings in gold with cabochon emeralds, sapphires, rubies and diamonds, circa 1960. erpent necklace/belt in gold with pink and S white enamel, and pear-shaped sapphires. Formerly belonging to and commissioned by Di- ana Vreeland, circa 1970s. Exhibited in Bulgari’s international retrospective exhibitions. BVLGARI are set from Bulgari’s Stars-and-Stripes Collec- apis, diamond and enamel Rtion, circa 1971, to celebrate the opening of their L elephant necklace, circa 1970; first American boutique in New York’s Pierre Hotel. formerly owned by an African Yellow gold with red and blue enamel, lapis and royal family. Exhibited in Bul- diamonds, circa 1973. Exhibited in Bulgari’s interna- gari’s international retrospective tional retrospective exhibitions. exhibitions. angle bracelet in 18kt yellow gold with cabochon B emeralds and diamonds, circa 1970s. Ruby and diamond bangle of geometrical design, circa 1965. arure of geometric design P with amethysts, citrines, and diamonds, circa 1969. Exhibited in Bulgari’s international retro- spective exhibitions. BVLGARI onete evening bag in 18kt gold, M embellished with twelve ancient Roman coins and diamonds, circa 1970.
    [Show full text]