M&B Gems and Marvin Bankoff have been supplying the wholesale and retail jewelry trade with polished gemstones of superior quality for more than 50 years. M&B Gems has a reputation for innovation and leadership in its market, while maintaining the highest level of integrity and unsurpassed service. M&B Gems plans to stay at the leading edge of stone cutting and design by implementing state-of-the-art cutting techniques and new design features to revolutionize the industry.