18K GOLD MYSTERY MARK GOLD ONYX & DIAMOND RING

18k yellow gold ring set with five small brilliant cut diamonds in a crescent form next to a panel of onyx. Marked "750" and maker's mark with D, an anchor, and C in a lozenge cartouche alon

Metal : 18k Gold Designer : Gucci Gemstone : Onyx, Diamond Measurements : Ring size 6, top measures 10mm x 9mm Marked: : 12, Gucci, Au750, Italian mark. Weight: 6.2 grams

Metal : 18k Gold Designer : Not Signed Gemstone : Diamonds approx. 0.24ctw, Coral, Onyx Measurements : Ring size 6.5, top is 18mm wide Marked: :French eagle mark, Gold mark Weight:

Diamond, onyx, chrysoprase 18k yellow gold bombe ring. Unknown makers mark on outside of ring. Ring features an onyx inlaid center flanked with vibrant green chrysoprase inlays accented with 11 bead s

18k Yellow Gold, Onyx & Single Cut Diamond Ring. Ring size: 6. Measurements: 0.4"x0.9". Weight: 12.3g.

METAL: 18k gold. MEASUREMENTS: ring size - 6 1/4, ring top - 24mm x 13mm. GEMSTONES: onyx top, diamond in the center - approx. 0.15ct. TESTED: 18k. WEIGHT: 4.5 grams.Gemstones have not been graded for

METAL: 18k gold. MEASUREMENTS: ring size - 5 1/2, ring top is 24mm x 24mm. GEMSTONES: opal - 11.8mm x 11mm, onyx. diamonds - approx. 1.00-1.10ctw (one diamond is missing). TESTED: 18k. WEIGHT: 20 gram

18k yellow gold black onyx and diamond ring, twenty-eight diamonds, 15 mm across the top, stamped 750, ring size 7.25.

18k yellow gold ring set with emeralds and diamonds. Ring size 5 3/4, ring top is 13.5mm wide. Marked - 18k, gold mark. Weight - 10 grams.

Hamilton Rolex style 18 karat yellow gold, onyx and diamond gentlemen's ring. Ring Size: 8. Total Weight: 14 dwt.

18K yellow gold onyx and diamond, three central stacked stones, inlaid onyx, marked size: 10.25 total weight: 12.1 grams Condition: one central stone is a CZ Provenance: Property from the estate of

METAL: 18K gold. GEMSTONES: onyx, diamonds. MEASUREMENTS: ring size 7. Ring top is 21mm x 25mm at widest point. MARKED: Tous 750. WEIGHT: 19.7 grams. Gemstones have not been graded for color and clari

An 18K white gold, art deco style fashion ring with a black onyx bezel and featuring four invisible set center diamonds of SI clarity and H-I color weighing approximately .20cttw. This very cool size

Cast in 18 karat yellow gold, the barrel form set with black onyx bisected by a band of diamonds, hallmarked 18k, size 4.25, 5.5 g, condition: good. Low Estimate: 150 High Estimate: 300

18K Yellow Gold Gents Onyx & Diamond Ring, 4.31dwt, Size 9 1/2

Vintage18k gold lapis, onyx and diamond ring size 5. Weighs 1.7dwt From a noted jewelry collection Park Avenue New York

No Reserve Price! Grading Results: ___________ Stone Type: Onyx Shape: Taper Carat: 2 Pcs/ 0.50 ct Color: Black Grading Results: ____________ Stone Type: Natural Diamond Shape: Round Brilli

METAL: 18k Gold. GEMSTONES: Diamonds approx. 0.44ctw. Onyx. MEASUREMENTS: Ring size 9 1/4, ring top is 15.4mm wide. MARKED: JH 18k. WEIGHT: 17 grams. Retail $4300.Gemstones have not been graded for co

Vintage 18k gold ladies Retro Art Deco style cocktail statement ring. A melon carved black onyx central gemstone surrounded by a matte finished carved rock crystal oval ring, held in place by two styl

Metal : Sterling Silver and 18k Gold Designer : Slane & Slane Gemstone : Diamonds approx. 0.38ctw. Onyx Measurements : Ring size 6 3/4, top is 23mm, Earrings are 26mm x 14.7mm Marked: : Mak

METAL: 18k Gold. MEASUREMENTS: Ring size - 5 1/2, ring top is 9.7mm x 20mm. GEMSTONES: Onyx, Diamonds 1.00ctw. MARKED: 1ct, VCA, 18kt, B5528X17. WEIGHT:6.3 grams.Gemstones have not been graded for col

Estate Italian 18kt Yellow Gold Diamond Onyx Gargoyle Ring. Unique ring set with black onyx and four round cut white diamonds as the eyes of two gargoyles / satyrs. Ring size 6, can be resized. Weighs

18k and 10k Yellow Gold, Onyx and Diamond Ring (3) items including an oval top of round cut diamonds and a citrine with diamond in a modernistic setting (marked '18k') as well as an approximately 25mm

Metal : 18k White Gold Designer : Pomellato Gemstone : Onyx, Diamonds approx.0.28ctw Measurements : Ring size 6.25, top is 13mm x 13mm Marked: : Pomellato, 860, Serial number Weigh