Knock. Knock. Who's there? It is the a pair of intoxicating Cartier modernist diamond gold doorknocker style clip earrings. Hanging from diamond encrusted leaves, the ridged circular 18 karat yellow gold drops will knock you out. Signed Cartier with serial number C60491. Circa 1994. Height of drop from top of leave is 1 1/2". Approximate total diamond weight is 1.50 carats.