This necklace is just so pretty! Made by designer Marco Bicego in 18k yellow gold the pendant piece of the necklace features 4 varying sized and colored stones, all rectangular shaped and checkerboard faceted. The very top of the pendant is a piece of 18k yellow gold with a brushed finish. Hanging below that are 4 gemstones. The first is an irradiated blue topaz that measures approx. 14.1mm x 8.07mm, prong set East to West. Next, is smokey quartz prong set East to West that measures approx. 19.05mm x 10.5mm. The third gemstone is an iolite that is also prong set East to West and measures approx. 14.20mm x 7.55mm. Finally there is an amethyst stone that is prong set North and South and measures approx. 7.25mm x 8.65mm. The lovely colorful pendant is hanging from and 18k yellow gold approx. 18″ cable chain with a uniquely squared lobster clasp (see photo) that is stamped “made in Italy” and “Marco Bicego”. This entire pretty piece weighs approx. 10.3 grams.