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Platinum, Paraìba-Type Tourmaline, and Diamond Ring

centering a round modified brilliant-cut paraìba tourmaline weighing approx. 15.50 cts. with a split-shank set with full-cut diamonds; 6.83 dwts.; size 5 1/2

  • Provenance: Property of a Boston, Massachusetts Lady.
  • Notes: Accompanied by GIA report no. 5221632809 dated September 13, 2022 stating that the tourmaline contains copper and manganese and that the origin is believed to be Nigerian.
  • Condition: overall good condition.

    Please note: All property is sold "AS IS" and any statement, whether oral or written, is given as a courtesy and shall not be deemed as a guarantee, warranty, or representation of the authenticity of authorship, physical condition, size, quality, rarity, importance, provenance, exhibitions, literature or historical relevance of the property or otherwise. The absence of a condition report does not imply the item is in perfect condition.

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November 6, 2022 11:00 AM EST
Boston, MA, US

Grogan & Company

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Bid Increments
From: To: Increments:
$0 $999 $100
$1,000 $1,999 $100
$2,000 $4,999 $250
$5,000 $9,999 $500
$10,000 $19,999 $1,000
$20,000 $49,999 $2,500
$50,000 $99,999 $5,000
$100,000 + $10,000