See Gem As
Tools
Research
A Preliminary Gemological Study of Synthetic Diamond Thin Films
The GEM DiamondMaster and the Thermal Properties of Gems
Thermal properties and the potential applications of the GEM DiamondMaster in testing them.
Dual-Color Double Chatoyancy in Emerald
An emerald displaying dual-color light green and white double chatoyancy is examined in the Tokyo laboratory.
Diamond Inclusions “Watching a Fly”
Crystal inclusions in a natural diamond resemble a unique scene.
Eye Pattern in a Rock Fragment
A partially polished rock fragment exhibits a very realistic eye pattern.
Diamond-Bearing Eclogite Xenoliths from the Ardo So Ver Dykes
Mineralogical examination of diamond-bearing material from South Africa reveals the specimens to be eclogite xenoliths.
Rare Type IIb Gray-Purple Diamond
A natural type IIb diamond with rare color and very strong 776.4 nm PL peak is seen at the Carlsbad lab.
Chameleon Diamond with Nickel Absorption Band
CVD Diamonds with Invisible Markings
A new type of invisible marking in CVD diamonds suggests a possible security measure.
Musical Diamond
A dark crystal and a stress cleavage crack resemble a quarter note in a diamond.
“Snail” in Diamond
While different types of inclusions often occur independently within diamond, it is quite rare to find more than one occurring simultaneously, let alone in contact with each other.
