Kashmir sapphire in a sapphire and diamond ring (€100,000-€150,000)Adam’s director of jewellery, Claire Mestrallet, is also very excited by the inclusion of another Kashmir sapphire in a sapphire and diamond ring (€100,000-€150,000). This will be the fourth Kashmir sapphire for sale at Adam’s in 2025; the first sold for a record €660,000 in May, and another two Kashmir sapphire brooches sold in September for €1.36 million. Mestrallet says that each Kashmir sapphire has been a “discovery”. When she suspected she had another Kashmir sapphire set in to a ring by French jeweller Boucheron, her fellow directors and even the laboratory technicians doubted her instincts. “When the lady brought me in her jewellery for sale, I thought it was a Kashmir sapphire, but I didn’t say anything.
