Goldstar Jewellery Diamond Studded Jewellery Manufacturers & Exporters in Mumbai India. Jewelry Suppliers & exporters in India. Wholesale Diamond Jewelry, Wholesale Rings, Wholesale Bridal Rings, Wholesale Machine Band Jewelry Manufacturers De Beers SightHolders. Gold Star Jewelry, a De Beers Sightholder, is India's leading diamond jewellery manufacturer, supplier, and exporter. We specialize in Wholesale Diamond Jewelry, supplying Wholesale Rings, Wholesale Bridal Rings, Earring, Pendants, Bracelet & Machine Set Jewelry developed with precision and state of the art technology. We have five state-of-the-art business units and offices across the world, with a workforce over 1500 people and a production capacity of over 1.25 million pieces a year.