A 3.84 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with an old cut diamond of 3.84

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 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 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 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 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 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.

A ladies handmade Art Deco platinum engagement ring, having an octagonal top with a prong set Old European cut diamond (approximately 0.34 carats total weight, color I, clarity I2) and filigree decora

Baguette diamond engagement ring set in platinum. Old mine cut. I(1) quality, J color.

Platinum ring featuring an Old European cut diamond weighing approx. 0.93 carats with an average color grade of J - K and an average clarity grade of VS set in center with diamonds bead set on shoulde

Stamped platinum wedding set including engagement ring and band. Ring with center approximately .45 carat Old European cut diamond in illusion box setting, with ten .01 carat each accent diamonds. Ban

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.

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

DESCRIPTION: Vintage platinum (marked 10% Irid Plat) engagement ring set with center Old European cut diamond, approximately 1.16 carat (by formula). Clarity I1, Color H-I. Accented by seven single cu

DESCRIPTION: Vintage platinum (marked 10% Irid Plat) engagement ring set with center Old European cut diamond, approximately 1.16 carat (by formula). Clarity I1, Color H-I. Accented by seven single cu

This stunning Edwardian era engagement ring dates from circa 1910 and features a platinum diamond encrusted filigree mounting set with a 2.28 carat old European cut center diamond. The diamond is beau

Features a 10.03-carat old oval brilliant cut diamond set in platinum and flanked by two old-mine cut diamonds. The center diamond comes with a GIA Diamond Grading Report stating that it is of I color

A 2.81 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING set with a round brilliant cut diamond of 2.81 carats, no assay marks, size L / 6, 3.6g.

A 1.23 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct white gold, set with a round brilliant cut diamond of 1.23 carats accented by further diamonds to the band, stamped 18CT, size R / 8.5, 3.7g.

SOLITAIRE DIAMOND RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an old cut diamond, between geometric shoulders, stamped 18ct Plat, size K / 5.25, 2.2g.

Edwardian Diamond and platinum engagement ring Set with an old European-cut diamond weighing approx. 1.95 cts and single-cut diamonds; 1910s Platinum Ring size 6.50; Gross weight 2.1 dwts Sold with bo

Cartier 2.00 Carat Old Cushion Cut Diamond Engagement Ring - Platinum