The certification authority can test the following gems for you
FANCY COLOR DIAMOND
Dazzling brilliance. Captivating color. These are the planet’s most valued gems.
Found in lava, meteorites, and deep in the earth's mantle, yellow-green peridot is the extreme gem.
Diamonds are among nature’s most precious and beautiful creations.
Citrine is the transparent, pale yellow to brownish orange variety of quartz
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