A euhedral prismatic pargasite crystal is identified in pink spinel.

A diamond ring from a claw game in Japan is analyzed.

The Carlsbad lab receives a laboratory-grown colorless sapphire with weblike fractures containing concentrations of dye.

Examination of a 1.34 ct ruby reveals a unique inclusion formed during heat treatment.

A combination of growth and dissolution features contribute to a yellow diamond’s unique shape.

A 63.17 ct dumortierite rough crystal is examined in the Bangkok laboratory.

Gersdorffite inclusions in quartz exhibit either triangular or hexagonal shapes when viewed from different directions.

Blue needle-like inclusions are analyzed in three quartz spheres.

An eight-rayed star peridot with a star system made up of two different sets of inclusions is described for the first time.

A 2.50 ct natural type IIa/IaB diamond submitted to the Dubai laboratory shifts to type IIb after deep-UV excitation.

A non-nacreous pearl with a netted surface resembles the exterior of a melon.

Clusters of micro-inclusions form starburst-patterned clouds in a 2.50 ct Faint yellow-green round brilliant diamond.

Play-of-color pattern in Ethiopian opal is reminiscent of a turtle’s shell.

GIA’s Tokyo laboratory examines three grossular garnets displaying six-rayed black inclusions arranged in a snowflake-like pattern.

Examination of a Fancy Deep brownish orangy pink diamond reveals evidence of treatment to enhance its color.

A unique inclusion scene caused by devitrification is observed in artificial glass.

A 37.41 ct natural rough diamond with distinct pink and colorless zones is examined at GIA’s Botswana laboratory.

A diamond feather and its reflection resemble an unidentified flying object.

Fungal inclusions are studied in two specimens of Burmese amber.

Showcases the diverse natural shapes of rough diamonds and explores how geological processes create their unique forms.