UNMOUNTED CABOCHON OPAL of 9.46 carats.

AN UNMOUNTED OPAL cabochon cut, 7.33 carats.

NO RESERVE - AN UNMOUNTED BOULDER OPAL cabochon cut, 12.65 carats, 2.3cm, 2.6g. 

A group of unmounted opalcomprising of 28 oval and round opal and fire opal cabochons, weighing from approximately 0.66 - 7.58 carats; weighing in total approximately: 59.95 carats

A group of unmounted opals comprising 19 round and oval cabochons and one rectangular faceted opal, weighing from approximately 0.77 to 16.49 carats, all crazed and/or cracked; estimated total gem wei

No Reserve! Title: ** Mexican Fire Opal ** Brand: Colored Gemstones Metal Purity: Cabochon Gemstones: Opal Carat Weights: 2.69 ct Size/Dimensions: 12.00 x 9.00 x 6.10 mm Shipping: Domestic: Flat-rate

A FINE OPAL AND DIAMOND PENDANT NECKLACE in 18ct white gold, set with a cabochon opal of 9.40 carats accented by round cut diamonds, stamped Au750, pendant 3.7cm, chain 45.0cm, 5.4g.

AN OPAL AND DIAMOND CLUSTER RING in 18ct white gold, set with a cabochon opal of 9.50 carats in a border of round brilliant cut diamonds, the band accented by further diamonds all totalling 0.65 carat

Opal Unmounted Cabochon, 1.8g | 13mm X 19mm. Good play-of-color. Strong pink, some green. Provenance: From the Estate of Prominent Collector, Leon Zielinski, Macomb County, MI

AN OPAL RING set with a pear shaped cabochon opal of 6.00 carats, stamped 925, size P / 7.5, 5.3g.

Loose Stone - 5.3 Carat Cabochon Opal.

Opal & Tourmaline 14K Gold Ring, oval cabochon opal weighing .75 carat with red and orange fire play, surrounded by 16 marquise shape pink tourmalines totaling 3.20 carats, 14K yellow gold, with appra

A BLACK OPAL AND DIAMOND PENDANT in 18ct yellow gold, set with a cabochon black opal of 3.40 carats, the bail accented by three round cut diamonds, stamped 18K, 2.2cm, 1.4g.

METAL: 18k Gold. MEASUREMENTS: Ring size - 6.5, ring top - 15mm wide. GEMSTONES: Fire opal cabochon - 4.963ct, Diamonds - 0.70ctw. MARKED: 4.963, k18, D070. WEIGHT: 9.2 grams.Gemstones have not been g

FIVE UNMOUNTED ROUND AND OVAL CABOCHON OPALS

AN OPAL AND DIAMOND PENDANT AND CHAIN, ASPREY & CO in 18ct white gold, set with an elongated oval cabochon opal of 4.85 carats, suspended below four graduated chevron motifs set with round cut diamond

METAL: 14K white gold GEMSTONE(S): oval cabochon opal approx. 7.04 carats; accented by round brilliant diamonds approx. 1.51 carats total, most G-H/VS-SI MEASUREMENTS: ring top 1-1/8 x 1 inches RING S

Ladies 18K white gold ring featuring a natural cabochon opal approximately 23.50 carats, accented by 268 round brilliant diamonds approximately 2.49 carats, Clarity-I1, Color-I in a link chain design

AN OPAL DRESS RING in yellow gold, set with an oval cabochon opal weighing 3.05 carats, no assay marks, size N / 6.75, 4.2g.

3 fiery oval cabochon opals totaling 1.50 carats and 3 round emeralds totaling .25 carat, 18K yellow gold mid-century designer type setting, with appraisal of $1,950.00, currently size 8.

Cabochon opal gemstone. 1.30 carats.

Cabochon opal gemstone. 0.65 carats.

Cabochon opal gemstone. 1.20 carats.

Cabochon opal gemstone. 1.05 carats.

13.26 Carat Oval Cabochon Black Opal, 2.26 Carat TW Eighteen Round Brilliant Cut Diamond and Platinum Ring. Opal with very good play of multi color. Diamonds E-F color, VVS-VS clarity. Stamped Pt900.