18kt. yellow gold ring with 18kt. white gold overtones formed by a central oval-cut sapphire.

Estimated at 12.10 ct. set in claws and flanked by brilliant-cut diamonds, estimated total weight of 1 ct. .

18kt White Gold ring set with 2.43ct Oval cut Yellow Sapphire in central position flanked by 1.25cts twt. of Round Brilliant and Baguette cut Diamonds on the band. Marked 750, MKD025. Ring size 6 3/4.

Ring. Signed 18kt white gold ring with central oval faceted blue gem flanked by (20) full cut faceted diamonds. Central gem, most probably a sapphire, measures approx. 10.0mm x 8.0mm; diamonds measure

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.

18 karat yellow gold (with white gold embellishments) ring with 1 oval sapphire at 0.41 carats and 4 round full cut diamonds at 0.12 carat total weight, I-J color/I-1 clarity. 8.8 grams. Marked: M. Bu

This is a designer John Hardy ring filled with colorless white sapphires in an oval shape, prong set atop a brightly polished 18KT yellow gold and sterling silver ring with cut-out work and black anti

Ballerina style 18kt white gold ring with central oval cut emerald and a surround of pave diamonds and a second tier of tapered baguette diamonds. Emerald measures approx. 8 x 6.5mm. Stamped, "75

Signed 18kt yellow gold ring with central oval cut faceted jade, most probably Imperial. Jade measures approx. 15.5mm x 10.0mm. By consignor provenance this faceted jade was previously graded by GIA s

and Diamond Ring. Signed Angela Cummings 18kt yellow gold ring with central oval cut cabochon flanked by graduated bands of round full cut diamonds. Cabochon measures approx. 10.5mm x 7.5mm. Stamped t

and Diamond Ring. Signed Angela Cummings 18kt yellow gold ring with central oval cut colored gem cabochon flanked by a graduated bands of round full cut diamonds. Cabochon measures approx. 10.0mm x 7.

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

A stunning 18kt white gold ring featuring a central oval brilliant cut natural emerald beryl gemstone, encircled by a harmonious blend of round brilliant and baguette cut diamonds. This meticulously c

Estate modernist 18kt white gold ring, with four oval-cut blue sapphires (one with small chip), approx 1.75cttw, and two small diamonds, inside shank stamped 153 18K, approx size 6, 7.1 grams (inclusi

Ladies Deco 18kt Yellow Gold ring set with centralized Oval cut Sapphire weighing approx. .25cts. accented by approx. .06cts small Diamonds to setting. Ring size 6 1/4. Marked 18K. Weighs approx. 2.0

Weight: 4.70 gr..

English 18kt yellow gold ring displaying a central oval Old European cut yellow diamond. Diamond measures approx. 4.5mm x 4.0mm. Stamped, "18" to the interior of the band with an unidentifie

Ring. Signed 18kt yellow gold ring with a central oval natural, unheated, Ceylon blue star sapphire. Accompanied by an April 3rd, 2023 GIA Sapphire Origin Report, no. 2221865137 stating this is one, O

Includes a single strand pearl necklace - pearls measure approx. 5mm each; a signed Modernist 18kt yellow gold openwork "bubble" ring with central oval cut citrine - unidentified maker's mark but poss

Men's vintage 18 karat Yellow Gold ring, in classic band design. Set to the center with oval cut Blue Sapphire stone. Having a brushed satin finish. Ring size 6. Weighs approx. 11.0 grams (7.1dwt). Sh

18kt yellow gold ring with a central amethyst oval cabochon flanked by (2) round full cut diamond accents. Amethyst measures approx. 11.5mm x 8.5mm; diamonds measure approx. 2.0mm. Stamped, "18K&

Signed Theodore B. Starr 18kt yellow gold ring displaying a central oval blue faceted colored gem, most surely a sapphire. Gem measures approx. 6.0mm x 5.5mm (mounting permitting). Stamped, "T.B.

Ring. Signed CH.H 18kt yellow gold ring displaying a central oval faceted Tanzanite flanked by (12) full round cut diamonds in a stepped design. Stamped to the interior of the band, "18k CH.H&quo

Ring. 18kt white gold engagement ring with central radiant cut yellow diamond with diamond halo, and split shank set with diamond accents. Central yellow diamond measures approx. 8x6mm, approx. clarit

Ring. Signed 18kt white gold ring with central prong-set oval faceted emerald surrounded by (12) round single cut diamonds. Emerald measures approx. 7.5mm x 6.0mm; diamonds measure approx. 1.0mm each.