Natural Diamond Cuban Link Chain Necklace. Gold Plated Italian .925 Sterling Silver. 5 petite Natural Diamond pendants dispersed on the front Diamond 0.1 CTW Diamond Pendant Size: Approx. 3mm Chain Length: 15" with 3" extender New with tags. Please note - images are enlarged to show detail. About Natural Diamonds: Natural diamonds are rare, billion-year-old gemstones formed in the Earth’s upper mantle under extreme heat and pressure, composed of crystallized carbon. Brought to the surface via volcanic eruptions, traveling at 30 to 40mph. They are prized for their unique geological history, unmatched durability, and brilliance. The diamond is also known as a “stone of innocence”, signifying purity and constancy.