Roberto Coin 22.81 carat Tanzanite and Diamond Ring in 18K White Gold swym-hide-addtocart accented with a black diamond-set

accented with a black diamond-set spider

With posts and clip backs

crafted in luxurious yellow gold with sparkling strands of bezel-set diamonds ending in pink tourmaline beads and briolettes

suspending a larger dot with white diamonds

With maker's mark for Jacques Timey

Roberto Coin 22.81 carat Tanzanite and Diamond Ring in 18K White Gold swym-hide-addtocart accented with a black diamond-setFeaturing a large marquise cut, deep blue tanzanite with flashes of violet, surrounded by an intricate halo of diamonds in a floral motif, set in 18k white gold. Signed RC for Roberto Coin with his iconic ruby. Accompanied by a Gubelin report stating that the tanzanite is natural. The retail price in 2017 was $90,000.