An Art Deco ruby, sapphire and diamond 'Day and Night' ring, early 20th century, centring on a band
An Art Deco ruby, sapphire and diamond 'Day and Night' ring, early 20th century, centring on a band set with a continuous line of channel-set calibré-cut rubies and sapphires, between hinged half-hoops set with single-cut diamonds, mounted in platinum with engraved sides, size N


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