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diamonds

ROUGH
hydrothermal beryls
hydrothermal corundums
czochralski pulled minerals
minerals grown by floating point method
flux minerals
lab created opals
flame-fusion star corundums
exotic synthetic diamond imitations


ROUGH
hydrothermal quartz
flame-fusion corundums
stepanov pulled leucosapphire
flame-fusion spinels
cubic zirconia
yttrium-aluminum garnet
opaque stones imitation


CUT
cut stones
diamond coated CZ