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Platinum, Emerald, Sapphire and Diamond Ring - Photo Sotheby's

Centered by a rectangular step-cut emerald weighing 7.09 carats, flanked by two rectangular step-cut sapphires weighing 2.01 and 1.91 carats, further accented by two baguette diamonds weighing approximately .90 carat, size 6. Estimation: 250,000 - 350,000 USD

Accompanied by four gemological reports:
AGL report no. CS 50077 stating the emerald is of Classic Colombian origin, clarity enhancement: none.
Gübelin report no. 12055282 stating the emerald is of Colombian origin, clarity enhancement: none.
AGL report no. CS 50078 stating the 2.01 carat sapphire is of Madagascar origin, with no indication of heating.
AGL report no. CS 50079 stating the 1.91 carat sapphire is of Madagascar origin, with no indication heating.

Sotheby's. Magnificent Jewels. New York | 05 déc. 2012, www.sothebys.com