Welcome to Tony Diniz

Gemstone expert Tony Diniz is renowned throughout the world for his knowledge and expertise in selecting the world’s most exotic gemstones. With his brothers Tanner & Tenner Diniz, Tony has built a worldwide gemstone trading business. Many of the unique and beautiful gems sourced by the Diniz Brothers come from within their own mine in Brazil. They also have exotic gemstone cutting and polishing operations and offices in Brazil and Thailand.  The Diniz Brothers differ from the usual gemstone experts because they have learned through experience of working in the gem trade from the ground up, by selecting, cutting, polishing and crafting some of the world’s most beautiful gemstones.