A COLOMBIAN EMERALD AND DIAMOND CLUSTER RING set with an octagonal step cut emerald of 2.31 carat...

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 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. 

A COLOMBIAN EMERALD AND DIAMOND RING set with a step cut emerald of 1.14 carats in a border of old cut diamonds, the band set with further old and round brilliant cut diamonds, no assay marks, size O

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. 

A COLOMBIAN EMERALD AND DIAMOND CLUSTER RING set with a fancy cut emerald of 9.52 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 1.5-2.0 carats, no assay marks, sizing

A COLOMBIAN EMERALD AND DIAMOND RING in yellow gold, set with an octagonal cut emerald of 1.63 carats, accented by round brilliant cut diamonds, no assay marks, size T / 9, 10.3g. Accompanied by a gem

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 COLOMBIAN EMERALD AND DIAMOND RING in 18ct white gold, set with an octagonal cut emerald of 1.47 carats accented by pairs of round cut diamonds, Swedish assay marks for 18ct gold, size I / 4, 3.3g.

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

NO RESERVE - A COLOMBIAN EMERALD AND DIAMOND RING, CIRCA 1945 in 18ct yellow gold, set with an octagonal cut emerald of 1.31 carats in a scrolling border set with two old round cut diamonds, Swedish a

AN EMERALD AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in yellow and silver, set with a step cut emerald of 1.14 carats, in a border of single cut diamonds, stamped 18CT, size M / 6, 3.6g.

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.

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

set with a step cut emerald approx. 10x6mm (inclusions, light surface fissures / cracks), and 46 round diamonds approx. 1.35 carats (in our opinion: G-H color, SI2-I2 clarity, however not guaranteed),

GIA Certified 4.25 Carat Octagonal Step Cut Colombian Emerald, 1.25 Carat TW Round Brilliant Cut Diamond and 18 Karat White and Yellow Gold Ring. Emerald with vivid color. Diamonds F-G color, VS1-VS2

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

Genuine Emerald and Earth-Mined Diamond Ring.  This 14 karat yellow gold ring features an enchanting 1.80 carat octagonal-cut, Colombian emerald that is prong-set with .48 carats of round, brilli

Genuine Emerald and Earth-Mined Diamond Ring.  This 1.77 carat octagonal-cut Colombian emerald has a soft glow that really catches your eye!  It is set in a 14 karat yellow gold ring with .3

* No-Reserve Price * Extraordinary 2.67 Carat Octagonal Cut GRS Certified Natural Columbian Vivid Green Emerald Set in 18K Gold Ring with 2 Trapezoid D-F VS Natural Diamonds Totaling 0.59 Carats and a

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