AN UNHEATED NATURAL SAPPHIRE AND DIAMOND COLLAR NECKLACE

The front collet set with a cushion shaped sapphire within a two tier circular cut diamond set surround, on a carved and frosted rock crystal ground, the sides further set with two rows of circular cut diamonds, on a multiple row haematite and rock crystal bead collar, with a sliding gold clasp, length 41.5cm, 18 ct gold, gross weight 140 grams, Comes with a report from The `Gem and Pearl Laboratory stating its natural, no indication of heat treatment, origin Madagascar.