Bidspirit auction | Harry Ivens tanzanite ring GG

Harry Ivens tanzanite ring GG 585/000 - Harry Ivens tanzanite ring GG 585/000 with an oval faceted tanzanite 7.5 x 5.4 mm in a bright violet-tinged blue, eye-clean and 6 brilliant-cut diamonds, total 0.03 ct l.tintedW/SI-PI, RG 59, IV stamped, 2.5 g