1.00ct t.w. Multi-Circle Diamond Pendant Necklace, Pearl. 16" Eternally appealing and instantly compelling, our 1.00 ct. t.w. multi-circle diamond pendant necklace with a central pearl solitaire will send ripples through your fashion scene! Featuring 1.00 ct. t.w. white diamonds and a gleaming 6.5mm cultured freshwater pearl. 18kt white gold necklace. Diamond birthstones are the perfect gift for April birthdays.