Judith Jack Blue Topaz and Marcasite Pendant NWT $100 Signed Marcasite and Blue Topaz Pendant Necklace Pendant features a 1/2 carat blue topaz surrounded by a circle of marcasite stones. Beautifully set in a .925 sterling silver setting and hung on a fine silver chain. Measures 18" long Lobster claw clasp Comes in a black velvet jewelry bag