A topaz and diamond necklace, claw set pear shaped topaz, approximately 20.5 x 14.9mm, estimated

A topaz and diamond necklace, claw set pear shaped topaz, approximately 20.5 x 14.9mm, estimated approximate weight 21.00ct, further set with twelve round brilliant cut diamonds, detachable bale, length including bale 3.6cm, suspended from an omega style chain, length 36cm, width 4.1mm, push-in clasp with figure of eight safety catch, unhallmarked, stamped '14Kt ITALY', gross weight 38.2g