Rocks Couture Sapphire Collection 18ct Yellow Gold Earrings With A Sapphire Center Stone Surrounded By A Halo Of Diamonds. Sapphires are a rare precious gemstone, they are extremely durable and beautiful. They come in a variety of colours and intensities and when placed into a piece of jewellery create a truly special piece. It is thought that Sapphire's name comes from the planet Saturn, as sapphire roughly translates to mean "dear to the planet Saturn" in many different languages. The sapphire is also the birthstone for September and a traditional gift for a 45th wedding anniversary. Find more beautiful pieces from our 'Rocks Couture Sapphire' Collection to complete your look. Total Sapphire Carat Weight: 0.67ct Total Diamond Carat Weight: 0.22ct