Taché is a group of leading diamonds and jewelry companies operating in more than 15 counties over the five continents. We of ... fer our global base of clients a complete portfolio of polished and rough diamonds as well as fine jewelry products, complement by tailor made services. Taché is a DTC (Diamond Trading Company ©) "Sightholder", having therefore access to the biggest supplier of rough diamonds in the world. From sales and service offices around the world we offer a board range of rough and polished diamond suppliers, precisely sorted to meet our client's needs, as well as beautiful collection of jewelry, all produced to the highest industry standards. Whatever the size of your business, our one stop shop solution can meet all your diamond supply needs. read more