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Margherita Burgener
An Amethyst, Colored Diamond, and Diamond Ring
Of bombé design, centering upon an oval-cut amethyst weighing approximately 14.30 carats, enhanced by a pavé-set diamond surround, to the circular-cut colored diamond gallery, mounted in 18K white gold, size 7 1/2.
Signed 'Margherita Burgener', 'Italy', with a Margherita Burgener box