Ring in 18kt yellow gold and diamonds. Rosette model with central diamond with ca. 1.03 cts. and the

Rosette ring in 18k. white gold. With central diamond, brilliant cut, K color, with purity of appearance VS2-SI1, thin and unpolished girdle, closed culet, weak fluorescence, weighing ca. 2.20 cts, bo

Set of necklace, bracelet, ring and pair of earrings in 18kt yellow gold. With cabochon-cut Persian turquoises, bordered by diamond rosettes, brilliant-cut, colour H, purity VS and weight ca. 8.00 cts

Slave bracelet in 18kt yellow gold. Model in the form of coiled snake with head and tail enriched with diamonds weighing ca. 0.60 cts. and rubies for the eyes. With opening system. Measurements: 6.5 c

Pair of "You and Me" earrings in 18kt yellow and white gold. Model with 9 mm. pearl and old brilliant-cut diamonds weighing ca. 1 cts. Crossbow clasp. Measurements: 16.9 x 9.2 mm.

Estimated weight 0.8 ct. and bordered by brilliant-cut diamonds..

Made up of a central diamond, old cut, estimated at 0.50 ct. bordered with diamonds, single cut..

Solitaire ring in 18kt white gold with a diamond, brilliant cut, ca. 4.00 cts. weight, color N, purity Si, set in six claws and flanked by a row of diamonds, brilliant cut, on the shoulders. Solitaire

18KT YELLOW AND WHITE GOLD AND DIAMOND RING Central approx. 0.25 ct. round-cut diamond surrounded by six round-cut diamonds, approx. 0.50 ctw. Stamped. Setting approx. 11.0mm. Size 8. Approx. 1.95 tot

18KT YELLOW GOLD, BLUE SAPPHIRE AND DIAMOND RING Central approx. 0.75 ct. oval blue sapphire surrounded by ten small round rose-cut diamonds, approx. 0.25 ctw. Stamped. Setting approx. 12.0 x 14.0mm.

18KT YELLOW GOLD, SILVER, PINK SPINEL AND DIAMOND RING Central approx. 7.0 x 9.0mm faceted pink spinel surrounded by 52 rose-cut diamonds. 18kt yellow gold shank and silver setting, approx. 19.0 x 19.

Yellow 18kt gold ring, gr 6.70. Diamonds cts 0.70. . .

A STAMPED "750, 18KT" YELLOW GOLD DIAMOND AND NATURAL SAPPHIRE WATERFALL STYLE NEW RING. 23 ROUND BRILLIANT CUT DIAMONDS OF 1.75 CTS., G=COLOR, VS=CLARITYOVER 2.0 CTS. NATURAL SAPPHIRE ARE INTENSE BLU

A steep star ruby cabochon, weighing approx. 74 cts. by formula, on a dome of filigree yellow and white gold diamond petals, diamonds approx. .60 cts. TW, ca. 1980. Signed PBK, 585. Size 8 3/4. 16.2 d

18kt yellow gold statement ring with matte finish to gold work. Inlaid with pave diamond and a central inset lozenge form panel inlaid with pave diamonds and a central bezel set round brilliant cut &q

18KT YELLOW GOLD, DIAMOND AND GREEN STONE RING Central approx. 5.0 x 7.0mm oval-cut green stone, possibly green tourmaline, surrounded by ten small rose-cut diamonds. Shank with floral design and Engl

A cluster of 14 rose-cut diamonds, approx. 1.15 cts surround a central diamond, approx. 3.15 cts in a closed-back setting. Circa 1860. 14K yellow gold and silver top ring. Engraved No. 96 N 3.15K 14st

Ring. Signed 18kt yellow gold modernist floret form ring with central cluster of round faceted diamonds set in 18kt white gold. Largest diamond measures approx. 4.0mm. Stamped, "18K" with an

18KT YELLOW GOLD, YELLOW SAPPHIRE AND DIAMOND RING Circa 1920s Central approx. 0.80 ct. round-cut yellow sapphire surrounded by 10 single-cut diamonds. Stamped. Size 5. Approx. 1.63 total dwt.

and Platinum Ring. Tiffany & Co. Etoile 18kt yellow gold ring with a central round brilliant cut diamond in a platinum surround. Diamond measure approx. 0.75cts, approx. color of F/G, approx. clar

Antique 18kt yellow gold ring with a central triangular rose cut diamond flanked by round faceted colored gems. Applied leaf decoration to shoulders. Diamond measures approx. 5.0mm x 5.2mm; colored ge

Oscar Friedman 18 kt. Yellow Gold, Emerald and Diamond Ring, central bezel-set octagonal step-cut emerald, wt. approx. 2.23 cts., 8.70 x 6.30 mm; mounted with 44 round brilliant cut diamonds, total wt

Including a 14kt yellow gold ring with (4) prong set diamond accents and a central prong set turquoise cabochon - ring is a size -5 1/4; an 18kt yellow gold ring with textured and high polished finish

VAN CLEEF & ARPELS 18KT YELLOW GOLD, DIAMOND AND ONYX RING Approx. 4.78 total dwt. (No Reserve*) Central cluster of 18 brilliant-cut diamonds, approx. 0.53 carats total weight, flanked by polished bla

Ring. 18kt yellow gold wide band ring with central bezel set Old European cut diamond. Diamond measures roughly approx. 7.0mm. Band is accented by a ribbed millibead design and center stone is flanked