Metal: platinum Marked/Tested: 100% IRID PLAT Gemstones/Diamonds Diamonds, approx.: 1.80ct total diamond weight Clarity: VS1/SI1 Color: Measurements: Necklace 17" long, 4.7mm wide (1 inch= 25mm) Weight: 27.9g Description: Pre-owned!!! Excellent condition. Necklace has ring for pendant.