Unmounted Diamond, the old European-cut diamond weighing 3.02 cts.

Platinum and Diamond Ring One old European-cut diamond weighing 2.00 cts., chipped, 20 single-cut and 4 baguette diamonds, ap. 3 dwts. Size 5 3/4. The diamond has been weighed. C

Platinum and Diamond Ring One old European-cut diamond weighing 1.66 cts., 6 old European-cut diamonds ap. .15 ct., ap. 3 dwts. Size 7 1/2. The diamond has been weighed. C

Platinum and Diamond Ring and Platinum and Diamond Band Ring One old European-cut diamond weighing 1.46 cts., 4 single-cut diamonds, 7 round diamonds ap. .20 ct., ap. 3.7 dwts. Sizes 5 1/2. With GIA r

Platinum and Diamond Ring Centering one old European-cut diamond weighing 1.83 cts., 4 tapered baguette diamonds ap. 60 ct., ap. 3.4 dwts. Size 5 1/2. The diamond has been weighed. C Property of a Pri

Tiffany & Co. Gold, Diamond and Ruby Pendant-Brooch 18 kt., one old European-cut diamond weighing 1.23 cts., 9 round rubies, signed Tiffany & Co., ap. 16 dwts. The center diamond has been weighed. C

Platinum and Diamond Ring with Platinum and Diamond Guard Ring One old European-cut diamond weighing 1.70 cts., 4 single-cut diamonds, 7 round diamonds ap. .20 ct., ap. 3.7 dwts. Sizes 5 1/2. The diam

Gold and Diamond Ring 14 kt., one old European-cut diamond weighing 1.69 cts., ap. 5.3 dwts. Size 5 1/4. With GIA report no. 2225503765 stating O to P range, SI1 clarity. C The Estate of Barbara P. Tr

White Gold and Diamond Ring 18 kt., one old European-cut diamond weighing 1.70 cts., 5 small round diamonds. Size 7. The diamond has been weighed. C

Gold, Diamond, Colored Diamond, Diamond, Demantoid Garnet and Black Enamel Ring One yellowish brown old European-cut diamond weighing 1.42 cts., 6 old European-cut diamonds ap. 1.25 cts., round demant

Ladies Diamond Flower Motif Pin featuring seven prong set old European cut diamonds, weighing approximately .70 cts of I-J Color and SI2-I2 Clarity. The pin is crafted in 3.6 dwt of 14k yellow gold an

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

Diamond, 14k Gold Ring. Featuring one old European-cut diamond weighing approximately 2.50 cts., flanked by two baguette-cut diamonds weighing a total of approximately 0.10 cttw., set in a 14k white g

14K yellow gold ring featuring an old European cut diamond weighing approx. 3.20 cts, average color grade of I-J-K and an average clarity grade of VS with 16 additional round diamonds set in frame aro

Edwardian diamond, platinum-topped 14k yellow gold bib necklace Featuring (1) old European-cut diamond, weighing approximately 1.05 cts., accented by (2) old European-cut diamonds, weighing a total of

Platinum, Diamond, and Sapphire Ringca. 1920s; centering an old European-cut diamond weighing approx. 2.10 cts. surmounted by channel-set sapphires and single-cut diamonds in a platinum filigree mount

Diamond and platinum ring Featuring (1) old European-cut diamond, weighing approximately 2.00 cts., accented by (28) single-cut diamonds, weighing a total of approximately 1.40 cts., set in a platinum

14K yellow gold With a detachable pendant set with one old European-cut diamond weighing approximately 2.00 cts. and graded K-L color and VS clarity, with a gold neck chain 14" L 5.9 grams 2 pieces Pr

Art Deco Platinum and Diamond Bracelet Set with 4 old European cut diamonds weighing approximately 1.40 cts, 50 old European-cut diamonds weighing approximately 5.00 cts and 216 old European-cut and s

Platinum, Diamond and Sapphire Straightline Bracelet Marked '100% IDIUM'; set with 20 old European-cut diamonds weighing approximately 1.40 cts. and 20 emerald cut sapphires weighing approximately 4.0

Platinum filigree with square top-mount centering an old European-cut diamond weighing approximately 1.20 cts., graded G-H color and SI clarity, size 5 1/4, est: $2500/3500

Diamond, sapphire, and platinum ring Centered on an old European-cut diamond weighing approx. 1.20 cts TW by measurement, framed by single-cut diamonds and rectangular-cut sapphires with an engraved b

GENT'S RING - 14K Gold and Old European Cut Diamond Solitaire. Centering a gypsy set old European cut diamond weighing approx. 1.08 cts; Color: VVS; Clarity: L, set with six hand engraved prongs to th

18K Gold and Diamond Ringthe bombe-form ring gypsy-set with an old European-cut diamond weighing approx. 0.30 cts. and 11 full- and single-cut diamonds; 6.25 dwts.; size 7

1) Platinum filigree ring featuring Old European cut diamond weighing approx. 0.25 cts set in the center, sz 6.5, 2) 14K yellow gold diamond cluster filigree ring with 7 small Old European cut diamond