From the Anthos Collection. Konstantino's Dagger Hinge cuff is handmade of sterling silver and 18K yellow gold tipped with vibrant cushion-cut blue spinels. Founded in 1993, the family-owned jewelry label is world-renowned for its superior craftsmanship and unique designs inspired by the art, mythology, and culture of ancient Greece. Blue spinel Sterling silver / 18K yellow gold Slips on Imported SIZE About 7'' circumference. Lsd Jewelry - Jewelry Lsd Mp > Konstantino > Saks Fifth Avenue > Barneys. Konstantino.