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Showing posts with label Gems & Gemology. Show all posts
Showing posts with label Gems & Gemology. Show all posts

Thursday, June 12, 2025

Enormous South Sea Cultured Pearl With Filled And Partially Hollow Structure

The GIA has published an insightful report on the huge South Sea cultured pearl in the Spring issue of Gems & Gemology, GIA's quarterly gemological journal. Must-read.


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Wednesday, June 01, 2022

Tuesday, May 31, 2022

Hillocks On Beryl

Take a look at a well-formed gem-quality aquamarine crystal with unique hexagonal growth hillocks. Many thanks to GIA gemologists.


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Saturday, May 28, 2022

Old Techniques Reimagined: Maki-e Pearls

Maki-e is an ancient Japanese lacquer technique that translates to sprinkled picture and is said to have originated more than 1200 years ago. It's a unique piece of art.


Useful link: https://www.gia.edu/gems-gemology/spring-2022-gemnews-old-techniques-reimagined-maki-e-pearls

Tuesday, May 24, 2022

Dyed Fluorite

Fluorites are dyed to improve color or clarity. If doubtful, consumers should consult a reputed gem testing laboratory like the GIA before purchasing colored stones.


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Sunday, March 06, 2022

Floating Flower Inclusions In Aventurine Quartz Bangle

Take a look. Gem identification is always challenging. If doubtful always consult a reputed gem testing laboratory like the GIA. 


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Imitation Candy Agate

The imitation candy agate could be defined as a new type of epoxy-filled chalcedony which shows similar colored cores to natural candy agate. The most effective non-destructive methods for identifying this product are Raman spectroscopy and microscopic observation. If doubtful always consult a reputed gem testing laboratory like the GIA.


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Friday, March 04, 2022

Colored Stones From The Deep

I love colored stones and like to learn the geology behind the discovery of colored stones in a variety of circumstances. The birth of colored stones are happy accidents. The insightful piece by the researchers at Gems & Gemology, Gemological Institute of America is a must read.


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