Tiffany & Co. Schlumberger Diamond and Enamel 'X' Ring in 18K Gold and Platinum status_not_sold Of half-hoop design

Of half-hoop design

to the tongue clasp

Composed of alternating links of bezel-set tourmalines and smaller pearls pearls within openwork geometric motifs

Designed as three interlocking tubogas bracelets — two in 18k yellow gold and one in 18k white gold

94 carat pink sapphire prong-set between two old mine-cut diamonds

Tiffany & Co. Schlumberger Diamond and Enamel 'X' Ring in 18K Gold and Platinum status_not_sold Of half-hoop designThe band of domed design, the middle set with black enamel between high polish 18k yellow gold borders, topped with a diamond set 'X' motif in platinum. Signed Tiffany & Co. Schlumberger Studios.