`This 18K white gold necklace contains 1 round blue topaz weighing approximately 3.00 ctw and 32 round diamonds in a halo weighing approximately 0.33 ctw. The pendant measures approximately 1/3" x 1/3" and the chain measures approximately 16" long. 

Metal: 18K white gold

Length: 16”

Gemstone: Topaz and diamond

Topaz carat weight: 3.00 ct

Diamond carat weight: 0.33 ctw