
OCT 17 | 10:00 PM

All auctions / Jewellery & Gems / 3.50ct GIA Paraiba Tourmaline Diamond Ring


Platinum ring featuring a GIA-certified 3.50ct pear modified brilliant-cut natural copper and manganese-bearing tourmaline, yellowish green and transparent. GIA notes the stone may be called "Paraiba tourmaline" in the trade. Accented by 73 round b rilliant natural diamonds totaling approx. 0.61ctw, VS1-SI1 clarity, F-G color. 9.9 grams. Size 7. Includes GIA report and GemAssure appraisal with stated retail replacement value of $28,760. Excellent condition with light wear, if any. Please see photos and reports for details. shipping info This item can be shipped in-house. Multiple lot combined shipping may require 3rd Party shipping.
Estimate:£4,535.49
To the auctionView all items fromBlackwell AuctionsorJewellery & Gems
Estimate:
£4,535.49
A 14k white gold bypass ring set with an emerald and a diamond
10/08/2026

£169.44
Est: £170.79
A 14k yellow gold necklace with a rose-cut diamond, late 19th century
10/08/2026

£593.05
Est: £597.77
A BWG rose gold ‘toi et moi’ ring with a rose-cut diamond, late 19th century
10/08/2026

£84.72
Est: £85.39
10K Diamond-Cut Style Band with Sand Blast Finish
10/08/2026
£155
Est: £90.78

OCT 17 | 10:00 PM

Bring your auction to collectors worldwide!
Get listed now