Research Article Search Results
Your Purchase Feeds: Vaibhav Global Limited’s Social-Impact Approach
Global retailer VGL offers ethically sourced jewelry while partnering with hunger-relief organizations to provide meals for children.
Uniquely Patterned Clouds in Sri Lankan Sapphire
Particle clouds with an interlocking triangular pattern are revealed in a blue sapphire from Sri Lanka.
Chocolate Opal
A common opal from Ethiopia examined in the New York laboratory bears a striking resemblance to a bar of chocolate.
A Classification Scheme of Natural Radiation Stain Morphology and Texture on Diamond
Offers a classification of radiation stain morphology and texture using photomicrography to supplement known characteristics of naturally irradiated diamonds.
CVD Synthetic Fashioned to Imitate a Rough Natural Diamond
Reports on a CVD-grown synthetic diamond fashioned in the approximate shape of an octahedron.
Atypical Bead Cultured Pearls Identified in a Natural Pearl Necklace
The Mumbai laboratory encounters numerous small atypical bead cultured pearls drilled and strung alongside natural pearls.
Mystery Bubble in Spinel
An inclusion feature with a mobile bubble is examined in a spinel reportedly from Myanmar.
In Memoriam: George R. Rossman
The gemological community mourns the loss of mineralogy professor George Rossman.
Diverse Range of Organic-Rich Cores in South Sea Non-Bead Cultured “Keshi” Pearls
Examines the organic-rich cores of non-bead cultured “keshi” pearls from Pinctada maxima mollusks to distinguish them from natural pearls of the same species despite their similar internal structures.
An Unusual Filled Cultured Pearl
A light gray near-round pearl exhibits an opening plugged with a drilled seed pearl.
Evidence of Heat Treatment in Spinel
Examination of inclusions in a red spinel reveals signs of heat treatment.
Quarterly Crystal: Spires on Moldavite
A rare specimen of moldavite tektite with unbroken spires from the Czech Republic is examined.
