This lovely authentic collar necklace is by Philippe Charriol, it is crafted from 18k white gold with a fine polished finish featuring 8 sections with double cable wire joined together by 5 square shape motifs decorated with diamonds, the last two section cable wire are joined by a polished cap and link. The necklace secures with a snap shut clasp and it is hallmark 750 with Charriol's trademark stamp on the clasp and on the back of each diamond motif. Main Stone: diamond: Near Colorless Material: 18k white gold Measurement: 16" long x 3mm wide Cube Motifs: 6mm x 4.5mm high Weight: 26.5 grams