BAUNAT does not buy diamonds, gemstones or second-hand jewellery from private individuals, as we do not offer a buy-back service. As a maker of 100% natural diamond jewellery handmade in Antwerp, we produce on demand rather than trade pre-owned pieces. To gauge a resale value, you can consult the current prices on baunat.com for a comparable diamond quality and carat weight and use these as a reference point. Selling directly to an end user, for example through an online auction platform, generally yields the highest return, while a local jeweller offers an easier route. You may also contact the Antwerp World Diamond Centre for trade contacts.