Very pretty 10 karat yellow gold necklace featuring an exquisite square cut onyx that measures 13x11mm and has a dazzling small round diamond in the center. Carved on the bail is a beautiful rose set in rose gold. The pendant is 17x15mm, it's 1 1/4" long, and it includes a 16" long chain. It weighs 2.1 dwt and it dates from the 1940's. The metal content is unmarked and has been tested using an electronic tester.