Get tangled up in exquisite taste with Federica Rettore's antique cut green prasiolite ring. Flaunt this alluring statement ring with everything in your wardrobe from a pair of jeans and tunic to a glamorous. gown. Size 7. 1.05" x 0.75" and 0.25" in Width. Green Prasiolite (13.60 CTW) White Diamonds (0.35 CTW) Cognac Diamonds (0.35 CTW) Available in 18K Rose Gold.