A platinum diamond single-stone ring. The circular-cut First Image

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A platinum diamond single-stone ring. The circular-cut First Image

A platinum diamond single-stone ring. The circular-cut

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1.60 CARAT CIRCULAR BRILLIANT CUT I SI DIAMOND PLATINUM THREE-STONE RING (1 of 1)

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1.10 CARAT CIRCULAR BRILLIANT CUT J SI1 DIAMOND AND SAPPHIRE PLATINUM TWO-STONE (1 of 2)

1.10 CARAT CIRCULAR BRILLIANT CUT J SI1 DIAMOND AND SAPPHIRE PLATINUM TWO-STONE

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A SAPPHIRE AND DIAMOND CLUSTER RING • Brilliant and single-cut diamonds • circular-cut s (1 of 3)

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Adam's Auctioneers

Jun 23, 2026

VINTAGE 1.02CT CIRCULAR BRILLIANT CUT DIAMOND PLATINUM ENGAGEMENT RING (I VS2) (1 of 2)

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1.94 CARAT CIRCULAR BRILLIANT CUT H VS1 DIAMOND PLATINUM ENGAGEMENT RING (1 of 2)

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2.25 CARAT CIRCULAR BRILLIANT CUT K SI2 DIAMOND PLATINUM ENGAGEMENT RING (1 of 2)

2.25 CARAT CIRCULAR BRILLIANT CUT K SI2 DIAMOND PLATINUM ENGAGEMENT RING

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1.04 CARAT CIRCULAR BRILLIANT CUT SHAPE J-VS2 DIAMOND PLATINUM ENGAGEMENT RING (1 of 1)

1.04 CARAT CIRCULAR BRILLIANT CUT SHAPE J-VS2 DIAMOND PLATINUM ENGAGEMENT RING

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1.08 CARAT CIRCULAR BRILLIANT CUT SHAPE I-VS1 DIAMOND PLATINUM ENGAGEMENT RING (1 of 2)

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1.17 CARAT CIRCULAR BRILLIANT CUT J VS2 DIAMOND PLATINUM ENGAGEMENT RING (1 of 1)

1.17 CARAT CIRCULAR BRILLIANT CUT J VS2 DIAMOND PLATINUM ENGAGEMENT RING

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1.17 CARAT CIRCULAR BRILLIANT CUT I SI1 DIAMOND PLATINUM ENGAGEMENT RING (1 of 2)

1.17 CARAT CIRCULAR BRILLIANT CUT I SI1 DIAMOND PLATINUM ENGAGEMENT RING

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1.00 CARAT CIRCULAR BRILLIANT CUT H SI1 DIAMOND PLATINUM ENGAGEMENT RING (1 of 2)

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1.24 CARAT CIRCULAR BRILLIANT CUT J-SI2 DIAMOND PLATINUM ENGAGEMENT RING (1 of 2)

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1.16 CARAT CIRCULAR BRILLIANT CUT J VVS2 DIAMOND PLATINUM ENGAGEMENT RING (1 of 2)

1.16 CARAT CIRCULAR BRILLIANT CUT J VVS2 DIAMOND PLATINUM ENGAGEMENT RING

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1.36 CARAT CIRCULAR BRILLIANT CUT SHAPE N-I1 DIAMOND PLATINUM WEDDING RING (1 of 1)

1.36 CARAT CIRCULAR BRILLIANT CUT SHAPE N-I1 DIAMOND PLATINUM WEDDING RING

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1.23 CARAT CIRCULAR BRILLIANT CUT F SI2 DIAMOND PLATINUM ENGAGEMENT RING (1 of 1)

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