Over 40 years of experience

Since 1980, Thomas M. Schneider has been directly importing the finest gem rough from across the globe. Based in San Diego, CA in the historic Jewelers Exchange, Tom serves the local community of lapidaries, jewelers, and collectors.

History of TMS Gems

Tom Schneider, a native Californian, grew up surrounded by gems and minerals in his parents' rock shop. It has been since this time that he has had a fascination with these treasures from the Earth.

Since 1980, Tom has been selling gem rough to cutter, both hobbyist and professional alike. Today, he travels the globe in search of the finest gem rough available so he can offer it to you.

With his personal philosophy of honesty and integrity, let Tom Schneider become your supplier of choice for rough and cut gemstones.