Gorgeous and rare authentic Antique quality saltwater golden shade pearls necklace! please see photos as part of description! necklace is approx 20.5? when clasped (please see photo near a ruler). European origin - not marked because made before 1920s - not all items made before 1920 were hallmarked. the clasp made of solid 18k white gold. approx total weight 61.91g. the pearls are approx 5.9mm to 8.3mm - it is graduated necklace. the clasp approx 16.3x11mm at widest when clasped, works well. it is unusual double clasp and allows to wear it as lariat when only clasped one part and let the other drop down - maybe?( a thought:-)! diamonds are rosecut approx 1.1mm each approx. in fabulous clean fantastic condition!. pearls are lustorous AAA and well matched! so well matched we thought they were faux but no real saltwater just super quality and well matched! please see the golden shade near the white pearls for color comparisson, also near skin. fab rare authentic antique item! great long wearable lenght- approx 20.5?! the cord is not stretched and thick but it is antique so could be restrung in future for safety if you wish. smoke free environment ! fast free insured USA Priority shipping! ready to be gifted and /or enjoyed! thank you!