Arete Diamond is a Czech fine-jewellery brand and member of the Diamant Club van Antwerpen, sourcing certified diamonds directly from Antwerp. Since 2011, its founder, Vladimír Kondratenko, has personally selected diamonds at the exchange. The stones are certified by GIA, HRD Antwerp or IGI, and the company states that its diamonds are ethically sourced. Jewellery is handcrafted in a Czech goldsmith atelier, with pieces made to measure and tailored to each customer’s choices of diamond, precious metal and setting.

The collection includes engagement and other rings, necklaces, earrings and bracelets, featuring natural colorless and fancy-colored diamonds. Customers can also commission bespoke jewellery, from an initial sketch through to the finished piece, and arrange personal consultations. Arete Diamond provides information and educational guides on diamonds, jewellery care and choosing engagement rings. Its services also include diamond consultations, appraisals and assistance with selling diamonds. Based in Prague, the brand serves customers through its online store and offers direct contact with its team for enquiries and appointments.