Yvonne Léon . The diamond "tennis bracelet" celebrates its 45th anniversary The natural diamond tennis bracelet celebrates its 45th anniversary! Discover the story behind this timeless jewel, from the tennis court to the creations of Tasaki, Harry Winston, and others. Which natural diamond are you? Learn everything with the DiamondScope, the diamond horoscope Discover your DiamondScope! For the Natural Diamond Council, Lisa Stardust reveals the type of natural diamond jewelry best suited to each zodiac sign.