AN ONYX AND DIAMOND RING AND AN ENAMEL AND DIAMOND RING
AN ONYX AND DIAMOND RING AND AN ENAMEL AND DIAMOND RING

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AN ONYX AND DIAMOND RING AND AN ENAMEL AND DIAMOND RING
THE FIRST WITH A CIRCLE CARVED FROM ONYX WITH A SINGLE-CUT DIAMOND WITHIN, THE SECOND SET WITH SINGLE-CUT DIAMONDS FORMING A V, BETWEEN BLACK ENAMEL SHOULDERS (2)