At Holts we have been dealing with stones and jewellery for over sixty years. The experience and knowledge we have acquired through these years is available to you in our valuation and gem testing service. Our services will provide you with a detailed identification of the jewellery pieces with their descriptions and the values of the pieces for the purpose of insurance valuations. You can also find us listed under diamond rings, bespoke jewellery design and manufacture, CAD jewellery design, gems and gemstones and antique jewellery.