18K WHITE GOLD & TANZANITE RING CA. 1926: Antique filigree ring contains a single round faceted tanzanite in an illusion setting. Approx. .24 Ct, transparent bluish violet, clarity H-I, medium intensity. Engraved LC-SR May 26. Stamped Orange Blossom 18K. Size 4.5. Weight 2.5 grams.