More Details Handcrafted necklace features the iconic repeating DAVIDOR Arch pattern, highlighted by diamonds on one arch and horizon. 18-karat white gold with lacquered ceramic and Porta-pattern diamonds. Diamonds: F+ color, VVS1 clarity, 0.14 total carat weight. Grand model pendant: Approx. 0.9" (24mm). Adjustable chain, approx. 15.7"-16.5"L. Lobster clasp. Unique serial number. Handmade in France.