This classic black onyx pendant is not so classic. It has a diamond shaped faceted surface. Onyx is set into a pretty sterling bezel with rounded edges. It comes on a beautiful thick chain which is made so the facets catch the light. Pendant measures about 1 7/8" x 3/4" wide. The chain is 24" long. Necklace weighs just under 30 grams and is in excellent condition with old patina. Pendant is signed with a maker's mark and 925. Chain has a spring ring clasp and is marked Italy 925.