18 Kt. Gold, Opal and Diamond Brooch

Plique du jour articulated diamond, opal & enamel brooch in 18kt gold setting. Flexible tail. 2" X 2.75". Total weight 21.1 grams. See photos for condition. In house shipping continental U.S. $20 plus

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

18kt yellow gold floral form brooch with filigree leaves and petals. Flower is comprised of a central bezel set circular opal, (4) full cut diamonds, and (1) Old Mine cut diamond. Opal measures approx

and pendant, carved turquoise head, nine marquise shaped opal cabochons, 26 single cut diamonds estimated total weight 0.60ct., tested 18kt. yellow gold, 2 x 1-1/2 in., 25.5 grams Provenance: A Privat

18 kt gold opal diamond bracelet , approx. 1900, YG 750/000, opal with blue green play ofcolours, surrounded by 16 diamond roses total approx. 0.12 ct, l. approx. 19 cm, case lock with safety chain, a

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.

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, Opal, and Diamond Pendant Earringssurmount with one bezel set trilliant cut diamond weighing approximately 1.40 total carat for the pair (J-K color, SI2 clarity) and suspending a pear shape

Ring.18kt yellow gold modernist cocktail ring with large oval opal with a surround of 7 round brilliant cut diamond accents. Stamped, "18k", with unidentified maker's mark of "D". Total approx. diamon

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

Men's 18kt yellow gold ring displaying a central oval cut opal with a surround of (24) single cut diamonds. Opal measures approx. 13.5mm x 9.5mm. Stamped, "18K". Total approx. weight of the ring is 21

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

18Kt Yellow Gold Opal Diamond Ring. Ring has Opal Stone on the center With 16 Diamonds. Opal weight: 2.45ct. Diamonds weight: 0.20ctw. Ring size: 8.00. Total weight: 3.49 Grams. GB-E8RJF

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 Opal / Diamond Ring. Ring has one Opal Stone on the center with 6 Diamonds. Ring size: 7.25. Total weight: 5.14 Grams.

Ladies 18Kt Yellow Gold Opal / Diamond Ring. Ring has one Opal Stone on the center with 6 Diamonds. Ring size: 7.25. Total weight: 5.14 Grams.

18Kt Yellow Gold Opal Diamond Ring. Ring has Opal Stone on the center With 16 Diamonds. Opal weight: 2.45ct. Diamonds weight: 0.20ctw. Ring size: 8.00. Total weight: 3.49 Grams. GB-E8RJF

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

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

18kt. WHITE-GOLD OPAL/DIAMOND RING - (JC/K2QMR) - 9 GRAMS

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: $