Diamond ring, 20th century, 0,950 platinum, 1 fancy cut

Platinum, diamond and jadeite jewelry suite, 20th c., bracelet with oval flat mottled-green disc, joined by circular cut diamond set chain, est. 1.0 carats, ring with (2) jadeite jade stones accented

1910-1915 Edwardian diamond and platinum ring, comprising 1.25 ctw old European and swiss cut diamonds (I-J color, Si1-Si2 clarity), Duchess style. Fineness marked, PLAT. Approx. US 4.5, total weight

VINTAGE PLATINUM AND DIAMOND RING Mid- to Late 20th Century Central approx. 0.65 ct. round-cut diamond, approx. I1 clarity, K-L color, surrounded by 22 single-cut diamonds, approx. 0.22 ctw., and eigh

A mid 20th century platinum diamond dress ring. The brilliant-cut diamond, with similarly-cut diamond tapered cylindrical sides. Estimated total diamond weight 1.50cts, principal diamond estimated I-J

A SOLITAIRE DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an old cut diamond of 0.51 carats within a tapering band, stamped 18ct Plat, size K / 5.25, 2.4g.

Antique platinum and diamond filigree ring with approximately .42 tcw., size 5 1/2, stamped platinum, weighs 3.2 grams/2.0 dwt., early 20th C

An early 20th century platinum and 9ct gold blue zircon and single-cut diamond cluster ring.Zircon calculated weight 1.96cts, based on estimated dimensions of 6.85 by 4.5mms.Estimated total diamond we

AN EARLY 20TH CENTURY SAPPHIRE AND DIAMOND RING an oval-cut sapphire in a fancy claw setting, to diamond-set shoulders. French 18 carat gold assay mark, ring size J, 3.1 grams Two chips noted to the

An early to mid 20th century platinum and 18ct gold old-cut diamond floral dress ring.Estimated total diamond weight 1.20cts, H-I colour, SI1-P1 clarity.Ring size O1/2. 3.3gms.

SIGNED TIFFANY & CO. ART DECO PLATINUM, DIAMOND AND SAPPHIRE LOW DOME RING, early 20th century. Old European cut round diamond weighing approx 1.00 ct. Centered by two lines of six calibré-cut sapp

An early 20th century platinum and gold, old and rose-cut diamond ring.Estimated total diamond weight 0.75ct. Ring size P. 5.3gms.

GIA Certified 4.38 Carat Modified Cushion Cut Natural Fancy Brown-Yellow Diamond, 1.0 Carat Round Brilliant Cut Diamond, Platinum and 18 Karat White Gold Ring. Fancy brown-yellow diamond, VS1 clarity.

An early 20th century platinum old-cut diamond two-stone crossover ring, with asymmetric shoulders, estimated total diamond weight 0.55ct, H-J colour, SI2-P1 clarity, band stamped PLAT, ring size N, 2

Featuring one round Brilliant cut diamond [Fancy Irradiated Yellow/VS-1], approximately 0.46 carats, set in a platinum mounting; size 6; weighs 3.4 grams

An early 20th century diamond cluster ring. Of kite-shape outline, the old-cut diamond cluster, with tapered shoulders. Estimated total diamond weight 0.20ct. Ring size M1/2. Weight 1.7gms.

Ladies Tiffany & Company platinum and diamond solitaire ring, having (1) 0.24ct round cut diamond, color: E, clarity: VS2, presented on a plain band, marked inside band: "Tiffany & Co, PT 950, T97430,

Estate Platinum 950 Art Deco 1.5TCW VS G-H Diamond & Natural Pink Sapphire Ring Size 10.5 Precious Metal Type: Platinum Item Weight: 9.8 gramsDiamonds: 0.60TCW, Single Cut, VS Clarity, G-H Color Pink

An early 20th century gold diamond two-stone crossover ring. The circular-cut diamonds, with asymmetric shoulders. AF. Estimated total diamond weight 0.30ct. Weight 1.6gms.

con zaffiro centrale taglio carrè e diamanti taglio vecchio, cts. 1.60 circa. Misura 17. Gr. 3.5 An english platinum ring, made in early 20th Century, with sapphire and old cut diamonds, cts. 1.60, S

A mid 20th century platinum diamond five-stone ring. The graduated old-cut diamond line, to the ridged shoulders and plain band. Estimated total diamond weight 0.65ct, I-J colour, SI1-P1 clarity. Weig

A mid 20th century platinum diamond three-stone ring. The graduated brilliant-cut diamond line, with single-cut diamond line sides, to the plain band. Estimated total diamond weight 0.55ct, I-J colour

A mid 20th century gold and platinum diamond cluster ring. The circular-cut diamonds, to the tapered band. Estimated total diamond weight 0.35ct. Weight 2.5gms.

DESCRIPTION: A Platinum ring centered by an approx. 1.2cts Pear cut Ruby, flanked on either side with .40 cts Pear Cut DIamonds, Stamped along the inner band "950". Total Weight: 3.3 dwt CIRCA: 20th C

American, 4th Qtr-20th century. Engagement ring features center old European cut diamond, slightly out of round, weighing approx. 1.18ct, nick on girdle, VS/SI clarity, J color. Center diamond flanked