Paolo Costagli Large Blue Topaz & Diamond "Brillante Valentina" Ring
"Brillante"-shaped blue topaz ring with pavé-set diamond accents beneath stone and at shoulders, mounted in 18k white gold. Fancy-cut blue topaz weighing 20.34 carats and measuring approximately 16mm in diameter, with round brilliant-cut diamonds weighing 0.84 total carats. Handmade in New York City. Designed by Paolo Costagli. Size 6.25.