OSCAR HEYMAN, AN UNTREATED EMERALD AND DIAMOND RING / PENDANT set with an octagonal step cut emerald

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

This unique square-top ring features a band of 14K yellow gold, split into three strands and set with three octagonal step-cut natural emeralds totaling 1.52 carats, surrounded by 68 round brilliant-c

18K OSCAR FRIEDMAN EMERALD & DIAMOND RING: 2.62 octagonal step cut ring is bezel set in an 18K yellow gold frame. It is further framed with a tier of 34 round brilliant cut diamonds and a second tier

18 kt. Yellow Gold, Emerald and Diamond Ring, center bezel-set octagonal step-cut emerald, wt. 6.04 cts., 11.30 x 10.30 x 7.23 mm; shoulders with 2 bezel set trapezoid-cut diamonds, total wt. approx.

Platinum, Emerald and Diamond Ring , center prong set octagonal step cut emerald, wt. approx. 2.63 cts., 9.3 x 7 x 5.3 mm; double halo and shoulders with 124 round brilliant cut diamonds, total wt. ap

Platinum, Emerald and Diamond Ring , center prong set octagonal step cut emerald, approx. 2.33 cts., 8.70 x 6.44 mm; double halo bezel and shoulder with 72 round brilliant cut diamonds, total wt. appr

18 kt. White Gold, Yellow Gold, Emerald and Diamond Ring, center bezel set octagonal step cut emerald, wt. approx. 2.16 cts., 9.60 x 6.60 x 3.90 mm; bezel and supports with 28 round brilliant cut diam

AN EMERALD AND DIAMOND CLUSTER RING set with an octagonal step cut emerald in a cluster of round brilliant cut diamonds, no assay marks, size Q / 8.25, 6.0g. 

AN EMERALD AND DIAMOND PLAQUE RING the geometric face set with an octagonal step cut emerald of 0.56 carats, accented by round brilliant cut diamonds all totalling 1.6-1.8 carats, no assay marks, size

A VINTAGE EMERALD AND DIAMOND CLUSTER RING in yellow gold, set with an octagonal step cut emerald in a cluster of old cut diamonds, no assay marks, size M / 6.25, 2.4g. 

AN EMERALD AND DIAMOND RING in 18ct yellow gold, set with an octagonal step cut emerald of approximately 1.03 in a border of round brilliant cut diamonds, full British hallmarks, size Q / 8.25, 3.6g.

AN EMERALD AND DIAMOND THREE STONE RING in 18ct white gold, set with an octagonal step cut emerald of 4.46 carats between two trilliant cut diamonds both totalling 0.65 carats, stamped 18K, size N / 6

AN EMERALD AND DIAMOND THREE STONE RING in 18ct yellow gold, set with an octagonal step cut emerald of approximately 1.46 carats, between two round cut diamonds, British hallmarks, size N / 6.5, 4.8g.

AN EMERALD AND DIAMOND CLUSTER RING in yellow gold and platinum, set with an octagonal step cut emerald of approximately 2.95 carats in a cluster of single cut diamonds, stamped PLAT, size Q / 8.25, 4

Oscar Heyman and Brothers Platinum, Emerald and Diamond Ring, c. 1962, serial number 62506, set with an emerald-cut emerald, approx. 2.50 cts., in a ballerina setting with 33 tapered baguette cut diam

EMERALD AND DIAMOND RING The octagonal step-cut emerald set within a brilliant and baguette-cut diamond surround, ring size approx. G½

AN EMERALD AND DIAMOND RING in platinum, set with an octagonal cut emerald in a border of single cut diamonds and step cut emeralds, stamped PLAT, size N / 6, 7.4g.

AN EMERALD AND DIAMOND RING in platinum, set with an octagonal cut emerald accented by old European cut and single cut diamonds and step cut emeralds, stamped PLAT, size O / 7, 6.6g.

AN ANTIQUE EMERALD AND DIAMOND FIVE STONE RING in yellow gold, set with alternating old cut diamonds and octagonal step cut emeralds, no assay marks, L / 5.75, 2.2g. 

18K 5.56 CT EMERALD & DIAMOND RING: 5.56 CT Octagonal step cut emerald is mounted with2 faceted diamonds approximating .64 CTW all set in 18K yellow gold. Size 5.5. Total weight approximates 82 grams.

18 kt. White Gold, Emerald and Diamond Ring, center octagonal step-cut emerald, wt. approx. 7.28 cts.; double bezel set with numerous round diamonds; size 7; GIA report. **Please note: Payment for all

BULGARI: EMERALD AND DIAMOND 'TROMBINO' RING, CIRCA 1965 The octagonal step-cut emerald between graduated baguette-cut diamond shoulders, in a bombé mount, pavé-set with brilliant-cut diamon

18K white gold Emerald and Diamond Ring having octagonal step cut natural beryl emerald weighing approx. 4.00 carats; set with 52 round natural diamond weighing approx. 0.21 carats, color H-I, clarity

Oscar Heyman Diamond, sapphire, and emerald ring Set with a 1.40 cts oval-cut diamond, surrounded by circular-cut emeralds, sapphires, and oval-cut diamonds Platinum and 18k yellow gold With maker's m