Research Article Search Results

Diamond Ring Prize from an Arcade-Style Claw Game

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

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Gaseous Carbon Dioxide Phases in Paraíba Tourmaline

Immiscible two-phase fluid inclusions are investigated in a 0.48 ct Paraíba tourmaline.

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Palaeoclavaria burmitis Inclusions in Burmese Amber

Fungal inclusions are studied in two specimens of Burmese amber.

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A Guide to Diamonds with the 480 nm Absorption Band

Summarizes the features of 480 nm band diamonds, including chameleon diamonds and those with unmodified orange hues, for rapid identification or advanced gemological testing.

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External Morphology and Internal Zonal Structure of Macle Diamond

Investigates the morphological changes of macle diamonds during the growth process by exploring their three-dimensional internal zonal structure.

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Two Assembled Pearls

Natural pearl cores are used to simulate the appearance of natural pearl growth in two assembled pearls mounted in a pair of earrings.

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Starburst Cloud Inclusions in Diamond

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

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Quench-Crackled and Dyed Laboratory-Grown Sapphire

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

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Prismatic Bicolor Dumortierite Crystal

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

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Characterization of “Orange Peel” Surface Microstructure of White Nephrite from Russia: A Unique Pseudomorph Pattern

Examines correlations between surface microstructures and the orange peel effect in Russian white nephrite, proposing a formation model and revealing distinctive microfeatures specific to the material.

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“UFO” in Diamond

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

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Sea Urchin–Like 3D Radial Fissures in a Heated Mong Hsu Ruby

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

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