Ozone diam is always upgrading our production technology and processes, maintaining state-of-the-art factories that meet the highest technical standards. We produce stones ranging from rounds & fancy shapes(0.15 points to 10 carats), as well as a wide variety of fancy color diamonds. Mostly whenever we sell any diamonds it been never returned by our customers but sometimes if in case any of them wants to return because of any reason we also provide a facility of returning the stone and also we