18 Kt. Gold, Diamond & Onyx Brooch

Sapphire, and Onyx Brooch. Beautiful Art Deco 18kt white gold brooch in the form of a flower basket set with (6) button form polished sapphires surrounded by white diamonds, and (2) single bezel set y

Brooch, 18kt white gold (stamped 750) with diamonds, onyx and coral (marked Giovane)

Brooch, 18kt white gold (stamped 750) with diamonds, coral and onyx (marked Giovane)

Antique black opal cameo set atop onyx set in platinum and 18kt white gold with diamonds. Width 1 3/8;; total weight 7.5 grams Condition: Two tight fissures in onyx at 12 and 6, perhaps intentional

Brooch Grouping. Includes a signed CB 18kt yellow gold brooch depicting a pair of twin cats with rose quartz cabochon bodies, black onyx heads and colored gem eyes - stamped verso, "750 CB";

Necklace. Exquisite 18kt bi-color gold necklace comprised of alternating yellow gold mounted carved hexagonal onyx pendants alternating with white gold mounted carved rock crystal pendants with diamon

18Kt gold and diamond spray brooch, comprising 68 round diamonds weighing approximately 4.1 carats, G-H color, VS-SI clarity. Brooch measures 56.63 x 42 mm and weighs a total of 13 dwt.

18kt Gold Diamond & Onyx Textured Horse/Pony Ring 8.4g size 9

Vintage 18kt gold diamond & onyx fashion ring. The ring features a total of fifty-five (55), pave set, round brilliant cut diamonds (one missing) and a carved onyx set in the center. The ring has an i

Eighteen-Karat Yellow Gold, Diamond and Black Onyx Clip Earrings, h. 3/4", together with an eighteen-karat yellow gold and black onyx necklace, l. 15", 24.0 grams total weight.

Signed David Webb 18kt yellow gold and diamond brooch. Central pear-shaped diamond measures approx. 4.0mm x 5.0mm or approx. 0.35cttw. Stamped, "© WEBB ® 18K". Total approx. weight

18KT GOLD & DIAMOND CRESCENT BROOCH, W 1/2", L 2.25", T.W. 6 GR An 18kt gold and diamond crescent form brooch. Offers twenty one diamonds, sizes ranging from 2mm to 5mm. Having a dedication ("M.E. KOT

Signed Gubelin 18kt yellow gold foliate form brooch with 18kt white gold "stem" inlaid with a graduated band of (5) single cut diamonds. Stamped, "750 356404" with a pictorial hall

Italian 18kt yellow gold foliate form brooch accented by (8) clusters of prong-set round brilliant cut diamonds. Diamonds measure approx. 2.5mm each. Total of (24) round brilliant cut diamonds. Stampe

Italian 18kt yellow gold woven openwork brooch set with 30 round brilliant cut diamonds. Each diamond weighs approx. 0.10 cts each; total approx. diamond weight is 3 cttw. Stamped, "Italy, K18", with

Estate 18kt yellow gold (tested) brooch, thirty-eight square-cut, channel-set red stones (synthetic), twenty-seven diamonds in platinum-topped setting, two bezel-set diamond and pearl drops, approx 1

Italian 18kt bi-color gold ribbon form brooch with edging terminating in a shaped edge accented by single cut diamond accents. Stamped, "Italy COM 18K". Total approx. weight is 8.6 dwt (gros

Ladies 18kt yellow gold estate circle pin, set with (1) round brilliant cut diamond, approx 5.57mm x 2.15mm, approx 0.17ct, class 2 cut, color: G-H, clarity: VS-2, pin-back with safety catch, 2.5 gram

An Art Deco Era 18 kt Gold, Diamond, Sapphire, & Onyx Ring. White gold Oval form ring is set with numerous small single cut diamonds, a round sapphire at the center with a synthetic rectangular sapphi

Oval 18 kt gold pearl-diamond-brooch , WG 750/000, 12 small white cultured pearls, 6 8/8-diamonds, total approx. 3.4 g, approx. 2.5x 2 cm, dainty

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

David Yurman 18Kt Yellow Gold Diamond & Onyx Quatrefoil Necklace. Measurements - 15 1/4" long. Weight - 13.8 dwt. (21.5 grams). #PJ28670 Please review all photos closely. Contact us for more deta

Ladies estate platinum,18kt gold and diamond brooch, two interlocked circles set with approx 2.00 cts total weight diamonds of varied size, 1.5"l, 1"w, 6.7 grams (inclusive of diamonds) Start Price: $

This lot is made up of 2 vintage jewelry items. The 1st is a, 18kt yellow gold, diamond, onyx and mother of pearl heart pendant. There are 5 round cut, white diamonds, approx .04 ct. the overallweight