Caterina Diamond is a Vietnamese jewellery brand based in Hanoi, offering designs presented as companions to personal style, meaningful moments, and thoughtful gifts. Its collections include rings, necklaces, earrings, and bracelets, with featured lines such as Caterina Women and Mai Hoa. Customers can also explore curated gift sets, including a four-leaf-clover necklace paired with Lumière Rose perfume and a handwritten card, packaged in a choice of ivory or navy.

The brand provides nationwide shipping, with delivery estimates of one to two days in Hanoi and two to five days elsewhere for eligible orders. Each design comes with a card and GRA inspection documentation for its moissanite. Caterina also offers complimentary cleaning and polishing for two years, with no limit on visits subject to a minimum three-month interval, and accepts returns within three days for technical defects or incorrect items. Through its collections, gift offerings, and customer care services, Caterina Diamond brings jewellery and gifting together in a distinctly personal way.