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AN AMETHYST AND DIAMOND RING, BY PAOLO COSTAGLI
Set with a cushion-cut amethyst, weighing approximately 20.25 carats, to the circular-cut diamond shoulders, mounted in platinum and gold
With jeweler's mark for Paolo Costagli
Set with a cushion-cut amethyst, weighing approximately 20.25 carats, to the circular-cut diamond shoulders, mounted in platinum and gold
With jeweler's mark for Paolo Costagli