Tolgahan Tahtacı is an İzmir-based jewellery design and gemstone-working studio led by a designer with 27 years of experience. The brand creates distinctive, custom-made jewellery, drawing inspiration from antique objects and historical styles, and offers collections alongside individually designed pieces. Its featured work includes antique coin rings, agate and monogram rings, medieval-inspired necklaces, Roman coin pendants, and oxidised 925 sterling silver chains.

The studio’s services include personalised jewellery and precious-metal design, gemstone cutting and finishing, and the repair, maintenance, renewal, and restoration of gold, silver, diamonds, and other precious stones. It also undertakes antique object design and care, and provides guidance on jewellery maintenance. Customers can explore its work through photo and video galleries, browse products, and enquire about orders directly.

Tolgahan Tahtacı also offers a specialised jewellery design course for people interested in learning the craft. With an emphasis on careful workmanship and the personal meaning of jewellery, the studio aims to preserve valued pieces while creating new designs for jewellery and art enthusiasts.