TechDiamondTools is a Silicon Valley based manufacturer of polishing diamond compounds of various usage. Since 2013, we have sold more than 50,000 polishing compounds and become an Amazon bestseller with organic 4.8-star reviews for all our products. We have won the trust of customers in the USA and far beyond its borders. Over the years, we ship to Canada, to Australia, and to Europe every day. Specialists in the gem industry, along with hobbyists and experts from other various fields, order our diamond compounds and powders again and again. We are extremely loyal to our clients and, therefore, we continually test new diamonds and powders to maintain the quality of our product and ensure that it always provides perfect results.