HolubGems is a gemstone and jewellery brand associated with František Holub, a qualified jeweller and gem cutter who creates distinctive pieces featuring precious stones. The online shop offers diamonds and a selection of gemstones, including sapphires, emeralds, opals, tanzanites and rubellites. Customers can also explore Lovelab jewellery, including everyday designs such as bracelets, and investment diamonds. The brand highlights stones cut by František Holub and its Holub® cut offering.

Customers may choose a gemstone or diamond for delivery in luxury packaging. Each stone package includes an international certificate confirming authenticity and origin, the stone itself, an information booklet and a jewellery design proposal. The website presents Holub as a personal jeweller whose work emphasizes precision, elegance and attention to detail, with services focused on creating unique jewellery around precious stones. HolubGems provides contact details for its Lučenec location and offers its products through an online store. Its range brings together individual gemstones, finished jewellery and options for customers interested in commissioning a piece based on a selected stone.