Lot 1188

Geological Alexandrite Trilling

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A color change alexandrite and eighteen karat gold ring: A color change alexandrite and eighteen karat gold ring centering a bezel-set cushion-cut alexandrite weighing approximately 10.00 carats, in fluted step mount. (10.5 dwt.; Size: 4 1/2) Provenance <

2021A color change alexandrite and eighteen karat gold ringSee Sold Price

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ALEXANDRITE RING WITH DIAMONDS Alexandrite is a unique gemstone that exhibits a rare color change: ALEXANDRITE RING WITH DIAMONDS Alexandrite is a unique gemstone that exhibits a rare color change from reddish purple to bluish green. Difficult to come by in larger sizes, these unique stones are evi

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Medici Jewelry 4.32ct Alexandrite, 1.70ctw Diamond and 18K Ring: 4.32ct Color Change Alexandrite, 1.70ctw Rose Cut Diamond and 18K White Gold Ring Designed by Prince Lorenzo de Medici - This beautiful ring is a masterpiece of design envisioned by the illustrious Pr

2024Medici Jewelry 4.32ct Alexandrite, 1.70ctw Diamond and 18K RingSee Sold Price

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14K Gold 3.22ct Alexandrite & 1.63ctw Diamond Ring: Estimated Retail Replacement Value: $107,680.00Ref: WAG53840Item no.: TK1238003 Ã¢€â€œ 00455Specification:Gold Content: 14k White GoldWeight of Item: 9.4gramsCountry Made: USARing Size: 7Ma

202114K Gold 3.22ct Alexandrite & 1.63ctw Diamond RingSee Sold Price

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Alexandrite & Diamond Ring (GIA CERT.) AV: $59,410: 18K white gold ring with 1.69 ct of diamonds CLARITY VS-2 to SI-1 COLOR F-H and 7.87 ct natural alexandrite center stone (GIA CERTIFIED) K39D995

2015Alexandrite & Diamond Ring (GIA CERT.) AV: $59,410See Sold Price

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202114K Gold 3.22ct Alexandrite & 1.63ctw Diamond RingSee Sold Price

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Julius Cohen Alexandrite Ring; yellow gold;: Julius Cohen Alexandrite Ring; yellow gold; 10.0dwt/15.55g; Alexandrite = 13.51cts; 78 diamonds = 1.19cts; Ring Size 5 Ã‚Â¼

2019Julius Cohen Alexandrite Ring; yellow gold;See Sold Price

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A VERY FINE ALEXANDRITE AND DIAMOND CLUSTER RING in platinum, set with an oval cut alexandrite of: A VERY FINE ALEXANDRITE AND DIAMOND CLUSTER RING in platinum, set with an oval cut alexandrite of 1.18 carats in a cluster of round brilliant cut diamonds, the stylised shoulders set with further roun

2023A VERY FINE ALEXANDRITE AND DIAMOND CLUSTER RING in platinum, set with an oval cut alexandrite ofSee Sold Price

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14 K White Gold ALEXANDRITE (GIA Cert.) & Diamond Ring: RESERVE PRICE - 10000 $ 14 K / 585 White Gold Designer ALEXANDRITE (Color Change) GIA Certified & Diamond Ring 14 K Hallmarked White gold Gross metal weight - 7.700 g Tota

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A GIA-Certified Alexandrite & Diamond Ring in 14K: 14K rose gold ring featuring a rectangular cushion cut alexandrite, weighing approx. 1.20 cts, with blue-green hue changing to purple, accompanied by GIA report #5221267026, prong set in center and fl

2022A GIA-Certified Alexandrite & Diamond Ring in 14KSee Sold Price

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GRS Certified 2.76 ct. Alexandrite - MADAGASCAR: GRS Certified 2.76 ct. Color Changing Alexandrite - MADAGASCAR Exceptional Color Change Cut - Cushion Modified Brilliant Cut Color - Yellowish green (daylight) changing to Orangy Pink (i

2024GRS Certified 2.76 ct. Alexandrite - MADAGASCARSee Sold Price

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GIA Alexandrite And Diamond Ring, Platinum: GIA Certified 5.21ct Alexandrite Having Very Good Color Change Surrounded By 0.84cts G-H, VS1-VS2 Diamonds Set In Platinum. Size 7, 9.5 Grams Total Weight. Scroll Through All Photos To View GIA And Ap

2024GIA Alexandrite And Diamond Ring, PlatinumSee Sold Price

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14k YG 15.18ct Diaspore Alexandrite & Diamond Ring: 14k yellow gold ring set with a oval cut 15.18ct Diaspore, 1.68ct Alexandrite, .033 ct round yellow diamonds and .013 ct round white diamonds. Ring size 7. Approx. overall weight 7.9 grams. Please see

202214k YG 15.18ct Diaspore Alexandrite & Diamond RingSee Sold Price

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3.00ctw Diamond, 0.50ctw Alexandrite 18K Ring: 3.00ctw VS1-VS2/G-H Diamond, 0.50ctw Alexandrite & Solid 18K White Gold Ring - This lovely ring was made by Modani Jewels and was finely crafted of solid 18k white gold. The ring is decorated with app

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A Rare Platinum 2.76 ct Alexandrite & Diamond Ring: Platinum ring featuring a rare oval natural alexandrite weighing 2.76 carats with color changing from yellowish green to purplish brown accompanied by GIA Gemological Report #1186440210 set in the cen

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Alexandrite And Diamond Ring, Van Cleef & Arpels.: Centering an oval cut alexandrite weighing approximately 0.86 carat; flanked by triangle brilliant cut diamonds; total diamond weight approximately 0.80 carat; set in a Van Cleef & Arpels platinum mou

2016Alexandrite And Diamond Ring, Van Cleef & Arpels.See Sold Price

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Item Details

Description

An unusually large and well-crystallised trilling (multiply twinned crystal) of alexandrite chrysoberyl, showing exceptionally fine face development and twinning, and exhibiting some colour change from greenish to plum in changing light. Cf. Bonewitz, Dr. Ronald Louis Smithsonian Rock and Gem, (2008), p.159. 31 grams, 36mm (1 1/2"). Ex Dr. Ronald Bonewitz collection; from Brazil. Chrysoberyl is an aluminate of beryllium.