Valentine Jewellery [India] Pvt. Ltd. Offers Sterling Silver Jewelry Rings. Valentine Jewellery [India] Pvt. Ltd is an ISO 9001-2000 certified company. The Sterling Silver Jewelry Rings are studded with natural semi precious stones like Amethyst, Blue Topaz, Citrine, Tourmaline, Garnet, Chalcedony in Cut, Faceted, Cabochons, Carved, Fancy shapes, Drops and Beads. The designs of these rings vary from contemporary to modern and funky styles. These Sterling Silver Jewelry Rings are available in variable weights like 4.5gms, 8.50gms, 2.8gms, 4gms, 6.12 gms, etc.