Overseas Diamonds Technologies
Preedy John E.
Reuter Ernest R.
Riling Dave
Ritzi Thomas F.
Roggero Paolo
Russell Kenneth M.
Sabot Bruno
Santandrea Robert
Sarasota Instruments Inc.
Sarin Technologies Ltd.
Sasian Jose
Schoeckert Kurt
Schrantz Stephen Douglas
Scientific Gem Identification, Inc.
Seymour Robert John
Shigetomi Tsuyoshi
Sivovolenko Sergey B
Sivovolenko Sergey B.
Smith Alan Cameron