Blue Spodumene
Raman analysis helps to confirm the identification of a rare and lovely large blue spodumene.
Conichalcite in Quartz Chalcedony
Vibrant yellowish green conichalcite inclusions seen in chalcedony for the first time by the Carlsbad laboratory.
Dislocation Chain in Oregon Sunstone
A decorated dislocation chain encountered in Oregon sunstone follows an interesting rectangular pattern.
Emerald in Rock Crystal Quartz
Perfectly hexagonal emerald crystal identified within a gem-quality rock crystal quartz.
Phenakite with Tourmaline Inclusion Containing Spiral Growth
A phenakite specimen from Madagascar revealed an eclectic inclusion scene containing tourmaline and other crystals.
Rain Cloud in Alexandrite
Milky particles and bands of silk resemble a rain cloud in this faceted alexandrite.
Tourmaline Inclusion in Russian Alexandrite
Russian alexandrite hosts well-formed prismatic tourmaline inclusions, a rare combination worthy of a collector’s specimen.
Imitation Opal with Interesting Play-of-Color Pattern
New imitation opal displays pronounced play-of-color phenomenon in a unique pattern covering large surface areas.
Faceted Chiolite
A very rare faceted “snow stone” was recently encountered in the Carlsbad laboratory.
Grossular Garnet Crystals in Demantoid Garnet
Demantoid garnet plays host to crystals of a different garnet species.
Exceptional Natural-Color Fancy Red Diamond
An extremely rare natural-color red diamond is submitted to the Carlsbad laboratory.
Gota de Aceite–Like Effect in a Brazilian Emerald
GIA’s Tokyo laboratory examines a Brazilian emerald with a gota de aceite–like effect characteristic of Colombian emeralds.
A Non-Nacreous Pearl Reportedly from Telescopium telescopium
An examination of the first natural pearl reportedly discovered in a Telescopium species.
Rare Kashmir Star Sapphire
A stunning large Kashmir star sapphire, set in a combination ring and pendant, is submitted to the New York laboratory.
A Synthetic Moissanite Presented as Natural Diamond Rough
The New York laboratory identifies a sample submitted for a colored diamond identification and origin report as synthetic moissanite.
Treated “Nickel-Rich” Green Diamond
Examination of a Fancy yellow-green diamond attributes color to both natural and artificial mechanisms.
Treated Orange and Pink CVD Laboratory-Grown Diamond
The Carlsbad laboratory reports on two CVD-grown diamonds subjected to multiple treatments to achieve their final color grades.
Large Orange Rutile Inclusion in a “Chameleon” Diamond
A partially enclosed orange rutile crystal is observed on the crown of a faceted diamond.
Quarterly Crystal: Panasqueira Quartz
Numerous inclusions are observed in a parallel cluster of two quartz crystals from Minas de Panasqueira in Portugal.
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