Roberto Coin 22.81 carat Tanzanite and Diamond Ring in 18K White Gold swym-hide-addtocart Each cufflink domed terminal set

Each cufflink domed terminal set with zigzag stripes of blue and white enamel

The realistic bow of pierced design

the top set with a princess-cut forevermark ideal square diamond

each within a rose-cut surround to the rose-cut diamond frame

Roberto Coin 22.81 carat Tanzanite and Diamond Ring in 18K White Gold swym-hide-addtocart Each cufflink domed terminal 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.