Oscar Heyman Bros. 18K gold, onyx, & diamond

Oscar Heyman Bros. 18K gold, onyx, & diamond, earrings, with 4 cts. diamonds. Stamped, "750" and with maker's mark. .875"H x 1.125"W

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-

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

The tasteful contrast between captivating sapphires totaling 0.75ct and brightly glowing diamonds weighing in total approximately 0.65ct graces this 18K yellow gold ring from Oscar Heyman with eye-cat

18k gold ring by Oscar Heyman. Features approximately 1.50ctw of diamonds. Ring size 8.5. Marked 18k Plat 48766 Makers Mark. Weight is 6.3 grams.

Magnificent Rare Vintage Dated 1966 Oscar Heyman 18k Yellow Gold Fancy Color Diamond Cocktail Ring ~ With Fancy Yellow Diamonds, Brown Diamonds and White Diamonds ~ 5.46tcw ~ Pear Cut Diamonds, Marqui

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

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

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

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

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 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

Hammerman Brothers Turquoise, Black Onyx and Diamond Necklace 18k yellow gold, the Art Nouveau necklace composed of links mounted with twisted carved black onyx measuring 20.0 mm x 11.0 mm and cabocho

OSCAR HEYMAN & BROTHERS, YELLOW GOLD AND DIAMOND RING Containing eight round brilliant cut diamonds weighing approximately 0.90 carat total. Ring size 6. Stamp: (maker's mark) 25734 18K PLAT. Gross we

Approximately 3.25cts E-G, VS Diamonds Set In18k Yellow Gold With Carved Onyx. Marked HB 750. 3/4 Inch High X 7/8 Inch Wide. 29.8g. See Photos For Additional Condition Information. Wire Transfer Or Ca

DESCRIPTION: Textured 18k gold with diamonds designed as an unfolding blossom, 16 post set diamond stamens tremble, approx. 1.12 cts. Mark of Hammerman Bros, "HB 18k, #28". Total Weight: 27.53 dwt CIR

METAL: 18k Gold. MEASUREMENTS: Brooch is 60mm x 35mm. GEMSTONES: Diamonds approx. 0.90-1.00ctw. MARKEDL 18k HB. WEIGHT: 30.8 grams.Gemstones have not been graded for color and clarity ,and tested for

Italian 18k gold pendant necklace by Faraone Mennella with onyx and approx. 0.02ctw in diamonds. Necklace is 17.5" long and 19.5mm at the widest point. Removable pendant - 46mm long with bail x 14mm w

18k Yellow Gold, Onyx & Single Cut Diamond Ring. Ring size: 6. Measurements: 0.4"x0.9". Weight: 12.3g.

METAL: 18k Gold. MEASUREMENTS: Earrings are 17mm in diameter. GEMSTONES: Onyx, Diamonds approx. 0.70ctw. TESTED: 18k. WEIGHT: 4.6 grams. Gemstones have not been graded for color and clarity ,and teste

Pendant measures 40mm x 21mm. Set with diamonds, onyx and emeralds. Marked 18k. Weight - 8.2 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, u

METAL: 18k gold. MEASUREMENTS: ring size - 6 1/4, ring top - 24mm x 13mm. GEMSTONES: onyx top, diamond in the center - approx. 0.15ct. TESTED: 18k. WEIGHT: 4.5 grams.Gemstones have not been graded for

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

HAMMERMAN BROS. 18K GOLD AND DIAMOND PAIR OF PIERCED EARRINGS, marked "750" and with Hammerman Bros. monogram, each snowball design set with 31 round brilliant-cut diamonds weighing approximately 0.10