SK Diamant is a French online jeweler focused on diamond jewelry, engagement rings, and wedding bands. Its website offers a broad selection of pieces, with options to create or customize rings, pendants, and earrings. Customers can explore classic solitaire designs in shapes such as round brilliant, princess, emerald, pear, oval, marquise, and heart, as well as settings with side stones, pavé, or vintage-inspired details. The range also includes multi-diamond rings, trilogy styles, pearl jewelry, and pieces featuring rubies, sapphires, and emeralds.

Beyond engagement and wedding jewelry, SK Diamant sells diamond and gemstone rings, bracelets, necklaces, pendants, and earrings, alongside loose diamonds and fancy diamonds. The catalog includes jewelry for men and collections in gold and platinum. The site also presents new arrivals, promotions, and sale offers. Customer testimonials describe positive experiences with the quality and appearance of the jewelry, delivery, and customer support, including assistance with sizing and order follow-up. SK Diamant positions itself as an online destination for fine jewelry purchases and personalized designs.