4.00CT BEAD SET ARCHITECTURAL OCTAGONAL STEP DIAMONDS

c. 1920s platinum diamond ring featuring center diamond weighing approx. 0.30 ct with additional diamonds bead set in step down design, sz 5.5, 2.3 grams

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

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

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

14 kt. White Gold, Yellow Sapphire and Diamond Ring , center prong set octagonal step cut yellow sapphire, wt. 1.39 cts., 6.35 x 4.97 x 4.25 mm; double halo and support with 66 square and round brilli

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

AN AQUAMARINE AND DIAMOND RING set with an octagonal step cut aquamarine of 10.60 carats, accented by trios of round brilliant cut diamonds, no assay marks, size L1/2 / 6, 5.1g.

A SAPPHIRE AND DIAMOND RING set with an octagonal step cut sapphire of 0.62 carats accented on each side by a round brilliant cut diamond, no assay marks, size O / 7, 2.3g.

18K yellow gold ring by Masriera featuring very fine plique-a-jour enamel in pastel colors, bezel set round cut rubies and diamonds, channel set step cut rubies, and bead set round cut diamonds in an

NO RESERVE - A GARNET AND DIAMOND RING in white gold, set with an octagonal step cut garnet, accented by round cut diamonds, no assay marks, size M / 6.25, 6.1g.

A FINE PAIR OF RED / PINK TOURMALINE AND DIAMOND EARRINGS in white gold, each set with an octagonal step cut pink tourmaline within a geometric border set with old and rose cut diamonds, the pink tour

AN AQUAMARINE AND DIAMOND THREE STONE RING in 18ct white gold, set with an octagonal step cut aquamarine of 4.30 carats between two round brilliant cut diamonds both totalling 0.9-1.0 carats, full Bri

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 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 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

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 AQUAMARINE AND DIAMOND RING in platinum, set with an octagonal step cut aquamarine accented by round brilliant cut diamonds, stamped PLAT, size N / 6.75, 4.2g. 

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 ANTIQUE AMETHYST AND DIAMOND BROOCH in yellow gold and silver, set with an octagonal step cut amethyst in a foliate border set with old cut diamonds, no assay marks, 3.1cm, 6.7g.

A GREEN TOURMALINE AND DIAMOND PENDANT NECKLACE in 18ct white gold, the pendant set with an octagonal step cut green tourmaline of approximately 5.77 carats accented by three single cut diamonds, susp

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.