Lab grown Chatham Blue Sapphire is the gem of truth and loyalty, which makes this gemstone a perfect choice. The rich velvety blue of twilight, sapphire is a peaceful color you?ll never get tired of seeing. Chatham?s lab grown blue sapphires have a silky blue color and pure clarity seen in only the best of mined gems. Metal: 14K White Gold Pendant Gemstone: 7.0mm Round Chatham Lab Grown Blue Sapphire Lab-Grown Diamond Total Weight: 0.07 ctw Carat Weight: 1.81 cts