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A Paraíba Tourmaline, Diamond, and White Gold Ring
Antique cushion-shaped mixed-cut Paraíba tourmaline, 7.457 cts.
Round brilliant-cut diamonds
18K white gold, size 6.25
SSEF Report: Mozambique, indications of heating
"This copper- and manganese-bearing tourmaline may also be called 'Pariba tourmaline' in the trade"
Estimate
$15,000 - 24,000