Large crystals of chromium-containing synthetic forsterite are being commercially manufactured for use as a laser material.
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Unusual doublets created from two different synthetics are revealed at the Carlsbad laboratory.
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Presents a visual guide to the growth processes and major gemmological spectroscopic features of synthetic diamonds.
Read MoreDr James Shigley, GIA distinguished research fellow, is one of the foremost experts in diamonds and their identification. In this presentation recorded at the 2017 JCK Las Vegas show, he shares the latest developments about HPHT and CVD synthetic diamond
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Another report of a gemmology lab spotting a parcel of undisclosed synthetics has prompted renewed questions about how many synthetics may have infiltrated the gem market – and there is considerable disagreement.
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Rare phosphorescence was observed in a synthetic sapphire, which had unusual properties not indicative of a particular growth method.
Read MoreA synthetic gem material is one that is made in a laboratory, but which shares virtually all the chemical, optical and physical characteristics of its natural mineral counterpart, though in some cases, namely synthetic turquoise and synthetic opal, additional compounds can be present.
Read MoreA new synthetic emerald exhibits some characteristics that are distinctly different from other synthetic emeralds, such as gold inclusions.
Read MoreDuring this period synthetics matured, with many new manufacturers and greater manufacturing capacity.
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