Emerald Diamond 18K Yellow Gold Schlumberger Tiffany Ring

An important 18K yellow gold and platinum step-cut emerald and diamond ring. The emerald weighs 6.72ct surrounded by the classic Schlumberger X motif, set throughout with diamonds. The ring is signed and is presented with AGL report no. 8091422 dated Feb. 14, 2023, stating that it is of Colombian origin. Tiffany, circa 1960.