Learning Center

Synthetic Gemstones

Learn what a synthetic gemstone is and what the difference is between synthetics, treatments and imitations.
Synthetic Opal Types

Distinguishing synthetic opal from a mined gem is a vital skill for opal dealers. Learn about five different types of lab-made opal and what they…

Are Man-Made Gemstones Real?

Get the insight of Jeff on all your questions and concerns about Gemstones. This “Just ask Jeff” article talks about the authenticity of man-made…