4.03 CARAT SOLITAIRE DIAMOND RING in platinum, set with

A 4.37 CARAT SOLITAIRE DIAMOND RING in platinum, set with an old cut diamond of 4.37 carats accented on each side by a baguette cut diamond, full British hallmarks, size Q1/2 / 8.5, 6.6g. 

A 2.02 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with an old European brilliant cut diamond of 2.02 carats to a tapering band, British hallmarks, size N / 6.75, 5.1g.

A 1.00 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 1.00 carats, accented by further round brilliant cut diamonds to the band, British hallmarks for p

A 1.01 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 1.01 carats, the band half set with further round brilliant cut diamonds, partial British hallmark

A SOLITAIRE DIAMOND RING in platinum, set with an old European cut diamond of 3.80 carats accented by two baguette cut diamonds of 0.32 and 0.31 carats, stamped Plat, size N / 6.5, 6.0g.

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a central pear shaped brilliant cut diamond of 1.67 carats, between two smaller pear brilliant cut diamonds of 0.48 and 0.45 carats, accented

A DIAMOND SOLITAIRE RING in platinum, set with a round cut diamond of 0.53 carats, full British hallmarks, size J / 5, 4.0g. Accompanied by a gemological report from the GIA stating that the diamond i

A SOLITAIRE DIAMOND RING in 18ct yellow gold and platinum, set with a transitional cut diamond of 0.62 carats, with further diamonds to the shoulders, stamped 18ct Plat, size N / 6.5, 2.3g.

A SOLITAIRE DIAMOND RING in 18ct yellow gold and platinum, set with an old cut diamond of approximately 0.67 carats, stamped PLAT, size P1/2 / 7.75, 3.2g.

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.

Tiffany style setting, marked Platinum. Set with approximately 1.06 carat (by formula) Old European cut diamond. Diamond measurements 6.5mm x 6.5mm x 4.1mm. Clarity SI1, Color J-K. 4.4 grams. Size 6.

Shank tested 14k gold. Platinum top set with approximately 1.6 carat (by formula) oval cut diamond solitaire. Diamond 8.73mm x 6.89mm x 3.96mm. Clarity I2, Color H-I. Size 6. 4.2 grams.

Marked 14k yellow gold ring, platinum prong top set with approximately .45 carat round brilliant cut diamond. Clarity SI1, Color H-I. 3.8 grams. Size 7-3/4.

Marked 14k yellow gold ring, platinum prong top set with approximately .45 carat round brilliant cut diamond. Clarity SI1, Color H-I. 3.8 grams. Size 7-3/4.

DESCRIPTION: 14k (stamped) white gold Tiffany style engagement ring with platinum six-prong top set with 1.77 carat round brilliant cut diamond. Clarity VS1, Color H-I. MEASUREMENTS: 2.4 grams. Size 5

DESCRIPTION: 14k (stamped) yellow gold Tiffany style engagement ring with platinum six-prong top set with 1.27 carat round brilliant cut diamond. Clarity VS1, Color J-K. MEASUREMENTS: 2.8 grams. Size

Antique Art Deco Platinum & Diamond Solitaire Ring. Acid tests for platinum. Approximately ring size 7.75, can be resized. Set with an approximately .40 carat diamonds.

A PLATINUM AND DIAMOND INTERLOCKING RING SET Designed as an emerald-cut diamond solitaire ring weighing approximately 1.95 carats, together with two ring guards, set with round brilliant-cut and marqu

set with a round diamond approx. 0.45 carats (in our opinion: J-K color, SI2 clarity, however not guaranteed), in yellow gold with platinum floral and scroll setting, stamped ‘18CT PLAT’, size 6,

Elegant antique Edwardian or early Art Deco ladies diamond solitaire ring. Crafted of 10% iridium platinum. Filigree design with engraved floral and wheat pattern details. Center set with a transition

DESCRIPTION: 18k yellow gold solitaire setting stamped Tiffany & Co. Platinum top set with 1.25 carat (by formula) round brilliant cut diamond. Clarity VS1, Color G-H. MEASUREMENTS: Diamond 6.71mm

Including a platinum solitaire-style ring center 6-prong basket set with one Round Brilliant cut Diamond [IVS-1], approximately 0.98 carats, 3.4 grams, size 5-1/2; and a platinum eternity band-style r

Including a platinum solitaire-style ring center 4-prong basket set with one Round Brilliant cut Diamond [F-G/VS1] approximately .60 carats, accented with two baguette cut Diamonds weighing approximat

Includes vintage setting marked 14k-18k with approximately .15 carat round brilliant cut diamond, size 5-1/2. And marked 14k Tiffany style solitaire setting, platinum prong top set with approximately