US$ 149.50
A direct-vision spectroscope designed for quick gem testing and colour analysis in your bench toolkit
A specialty pitch cup from GRS that melts when heated to securely hold small
This how-to book is written by Rubert Finegold and William Seitz
ensuring accuracy and ease of use
Angle Cut Cylinders 20# Gemological Instruments A direct-vision spectroscope designed forCeramilite The clean running light media that is between ceramic and plasticbonds. Metal removal is not quite as fast on bulk or dense materialsas ceramic, but measurably faster than plastic. Finishability is finerthan ceramic and brighter than the s
US$ 149.50
US$ 10.90
US$ 10.90