18kyg diamond brooch by Oscar Heyman 5.50ctw

OSCAR HEYMAN & BROTHERS, YELLOW GOLD, PLATINUM AND DIAMOND FOX BROOCH Containing 27 round brilliant cut diamonds weighing approximately 0.80 carat total and two ruby eyes. 1 inch x 1 1/4 inches. Stamp

Oscar Heyman Diamond, Sapphire, Platinum Brooch Stones: Full-cut diamonds weighing a total of approximately 1.20 carats; square and calibré-cut sapphires Metal&col

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

Oscar Heyman diamond emerald circle pin. diamond weight approx. 1.5ct, emerald weight approx. 1.2ct, diameter 1 3/8'', weight 11g

Oscar Heyman & Bros diamond and platinum ring. Inner band is marked with HB, K4863, and PLAT. Features 16 baguette diamonds with a total weight of 0.75 carats. Set in platinum. Tested. Ring Size: 7.25

A FABERGE GOLD, ENAMEL AND DIAMOND `TSAREVNA` BROOCH, WORKMASTER OSCAR PIHL, MOSCOW, 1887-1897 opaque white life-belt inscribed Tsarevna in Russian, with entwined gold ropes, the naval flag attached t

Oscar Heyman Diamond, Platinum, White Gold Earrings Stones: Full-cut diamonds weighing a total of approximately 1.50 carats; baguette-cut diamonds weighing a total of app

Fine Oscar Heyman (signed) eighteen karat yellow gold ring set with an approximate 1.40 ct. oval diamond, M-N color, VS-VVS clarity, (set in iridium platinum), approximately 1.5 ct. tw. oval diamond s

Oscar Heyman Sapphire Tapered Baguette Diamond Platinum Swirl Ring Circa: 1970s Diamond total weight approx. 2.50 cts Sapphire approx. 0.75 ct, 5.49mm Ring Size: 6 Head Measurements: 16.22mm (W) x 12.

Oscar Heyman Sapphire, diamond, platinum and 18k yellow gold ring featuring (19) full-cut diamonds, weighing a total of approximately 0.70 ct., accented by (14) rectangular-cut sapphires, weighing a t

14K WHITE GOLD "OSCAR CAPLAN" AQUAMARINE, DIAMOND & PEARL PIN (BROOCH) / PENDANT - OVAL CENTER FACETED NATURAL AQUAMARINE MEASURING 13.80mm X 11.00mm X 3.50mm WITH APPROX. TOTAL WEIGHT OF 10 CTS - 20

METAL: Platinum. GEMSTONES: Diamonds approx. 0.25ctw. Sapphire (some stones are chipped). MEASUREMENTS: Ring size 8 1/4, ring top is 5.8mm wide (split shank) . MARKED/TESTED: Numbered, not signed. Eng

A Fabergé gold, diamond and turquoise brooch, workmaster Oscar Pihl, Moscow, circa 1895. Struck with workmaster's mark, Fabergé in Cyrillic, 56 standard, and the mark of the Moscow assay office. In

Metal : 18k Gold Designer : Oscar Heyman Gemstone : Diamonds approx. 0.48ctw Measurements : Ring size 7 3/4, top is 6mm Marked: : Maker's mark 18k Plat Weight: 4.4 grams

OSCAR HEYMAN, FANCY BROWN-YELLOW DIAMOND AND DIAMOND RING Containing one pear shaped fancy brown-yellow diamond weighing 5.36 carats and eight oval brilliant cut diamonds weighing approximately 1.90 c

Tiffany & Co. Jean Schlumberger platinum and 18k yellow gold "Star Fish" brooch designed with sixty-two diamonds, 1.28 carats total weight, appx. 2 3/4". 46.65gr. Signed "Tiffany Schlumberger 18K PLAT

View a video of this lot: Click HereCrafted in platinum; set with a oval faceted emerald, weighing approximately 0.77 carat; accented by tapered baguette diamonds, weighing a total of

With 27 full cut diamonds (app. 1.35 ct T.W.) Marked and numbered as pictured, Dimensions:Size 10 1/4, the width is 3mm, the approximate gross weight is 2.8 dwt. Provenance:From a local estate.

American Retro 14 kt. Rose Gold, Citrine, Ruby and Diamond Dinner Ring , attr. to Oscar Heyman, c. 1940, set with on emerald cut citrine flanked by 4 full-cut diamonds and 6 calibre-cut rubies, citrin

OSCAR HEYMAN Art Deco Platinum Diamond Bracelet Weighing 65.1 grams Including letter of authenticity from Oscar Heyman Set with a total of 30.63 Ct. of Diamonds: 66 Square Diamonds weighing 12.39 Ct.

Oscar Heyman 1.80ctw Blue Sapphire, 0.75ctw VS1-VS2/F-G Diamond Solid 18K Yellow Gold Ring - This captivating ring was made by Oscar Heyman, and was finely crafted of solid 18k yellow gold. Since the

Crafted in platinum and 18K gold; featuring an oval-cut sapphire weighing approximately 2.00 carats; surrounded by eight oval-cut diamonds weighing a total of approximately 1.30 carats, with mostly G-

Oscar Heyman 1.50ctw Ruby, 1.20ctw VS1-VS2/F-G Diamond Solid 18K Yellow/White Gold Ring (Comes W/$15,000 Appraisal) - This captivating ring was made by Oscar Heyman, and was finely crafted of solid 18

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