Diamond ring, 20th century, 0,950 platinum, 1 diamond

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

20th century. Total weight 0.18 ct. Total weight 7.15 g. (0.252 oz.) Ring size 5 1/2

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

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

Hugo Stromhdahl platinum, diamond & ruby ring, 20th c., Made in Sweden, wide band centered by cabochon ruby, 10.66 x 9.0mm, opaque dark color within pave-set diamond surround, est. 5.0 carats, I-J col

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

Platinum tested, approx. 1.25 Ct Solitaire 4 Prong Diamond Engagement Ring. Monogrammed inside ring & 12/25 illegible probably Xmas engagement. Early 20th C. No appraisal. 2 side baguette diamonds. Co

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

Mid to late 20th century custom 18k yellow gold and diamond ring with red enamel strawberries, comprising of 18k white gold mounted 1.0 ctw diamonds (H-I color, VS2 clarity). MHT maker's mark and 750

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.

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

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 Platinum and Diamond ring weighing 1.9 grams. Diamond measures 3.11 mm in diameter, ring size 5, circa early 20th century. We ship most items in this auction in house and gladly combine shipping if

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

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.

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

TIFFANY & CO. PLATINUM AND DIAMOND RINGAmerican, late 20th- early 21st century, platinum. Twenty-two (22), approx. 2.87mm each and 1.76 total carat weight, channel set diamonds to band, marked to inte

20th century. 0.25 ct, (VS-2/H) Total weight 4.97 g. (0.175 oz.) Ring size 5 1/4.

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.

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

METAL: Platinum. GEMSTONES: Center diamond approx. 1.00-1.10ct (imperfect) , surrounding diamonds approx. 0.47ctw. MEASUREMENTS: Ring size 5 1/2, ring top 16mm wide. MARKED: 10%Irid Plat. WEIGHT: 8.8

A mid 20th century 18ct gold and platinum diamond single-stone ring. The brilliant-cut diamond collet, to the tapered shoulders and plain band. Estimated diamond weight 0.45ct, J-K colour, P1. Weight

Two mid 20th century 18ct gold and platinum diamond three-stone rings. Each designed as three brilliant-cut diamonds, to the plain band. Estimated total diamond weight 0.45ct. Weight 5gms. Overall con