Nature has no rules. Many thanks to Graeme Dowton of Red Earth Opal Australia and the GIA team and Gems & Gemology for sharing an insightful story on rare pineapple opal specimen.
P.J.Joseph's Weblog On Colored Stones, Diamonds, Gem Identification, Synthetics, Treatments, Imitations, Pearls, Organic Gems, Gem And Jewelry Enterprises, Gem Markets, Watches, Gem History, Books, Comics, Cryptocurrency, Designs, Films, Flowers, Wine, Tea, Coffee, Chocolate, Graphic Novels, New Business Models, Technology, Artificial Intelligence, Robotics, Energy, Education, Environment, Music, Art, Commodities, Travel, Photography, Antiques, Watches, Random Thoughts, and Things He Like.
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Wednesday, June 21, 2023
Tuesday, June 20, 2023
Sixth Annual Gianmaria Buccellati Foundation Award Winner
Hats off to Sara Guergova, a graduate of GIA's Jewelry Design program in London receiving the 6th annual Gianmaria Buccellati Foundation Award for Excellence in Jewelry Design. Many thanks to Gems & Gemology for the insightful story.
Sunday, June 18, 2023
Synthetic Color-Change Wakefieldite
I haven't seen a synthetic color-change wakefieldite before. Many thanks to GIA researchers and Gems & Gemology for sharing the gemological characteristics.
Thursday, June 15, 2023
Zeki Karaca Jewelry: Luxury Pens
I love Zeki Karaca's pens. They are brilliant storytellers. Many thanks to Gems & Gemology.
Gemological Characterization Of Montana Sapphire From The Secondary Deposits
The insightful report by GIA researchers, Montana Bureau of Mines and Geology, and Earth's Treasury on gemological characterization of Montana sapphires from the secondary deposits at Rock Creek, Missouri River, and Dry Cottonwood Creek is a must read. I think the information will be useful for colored stone dealers, miners, gemologists, jewelry designers, and jewelers. Many thanks to Gems & Gemology.
Tuesday, June 06, 2023
Three-Phase Inclusion In Alexandrite
Many thanks to Jamie Price of GIA Carlsbad, California, for sharing a gem inclusion story.
Monday, June 05, 2023
Xenomorphic Garnet In Diamond
The microworld of diamonds and the embedded inclusions are unique and beyond description. Many thanks to GIA Carlsbad, California for sharing the story.
Sunday, June 04, 2023
Bead Cultured Abalone Pearls From Chile
The insightful report by GIA researchers is a must read for pearl dealers, practicing gemologists and jewelers. Many thanks to Gems & Gemology for sharing the story.
Saturday, June 03, 2023
Bright Orange Sapphire From Greenland
Sunday, February 05, 2023
Calcite Found On The Surface Of A Saltwater Nacreous Pearl
Saturday, February 04, 2023
Saturday, November 26, 2022
Pressed Amber Imitation For Root Amber
Amber treatments are imitations are common. Visual observation with fluorescence microscopy can be useful in positive identification.
Thursday, November 24, 2022
Smoke Rings In A Non-Beryllium-Diffused Sapphire
With sapphires chemical analysis combined with inclusion observation is necessary to identity natural and treatment status of the stone because most sapphires are treated to either improve color or clarity. Take a look at this unique inclusion.
Wednesday, November 23, 2022
Diopside In Elbaite Tourmaline
One-of-a-kind inclusion in Tourmaline. Raman spectroscopy was essential.
Tuesday, November 22, 2022
Monday, November 21, 2022
A Non-Nacreous Pearl Reportedly From Telescopium telescopium
Gemologists and pearl consumers should read the insightful report by the GIA.
Fraudulently Inscribed Synthetic Moissanite
Sunday, November 20, 2022
Cat’s-Eye Paraíba Tourmaline With Copper Inclusions
Take a look at the chatoyancy caused by copper inclusions.
Thursday, September 08, 2022
Diamonds And Diamond Mining In Guyana
Diamond exploration and mining in Guyana remain a mostly artisanal endeavor. Take a look at the gemological characteristics of Guyana diamonds.
Emeralds From The Coronation Crown Of Napoleon III
A storyteller. The gemological aspects of the coronation crown of Napolean III was insightful. I hope more museums will allow non-destructive studies of their gemstones, whether set in jewels or not, in order to tell the full story and offer these treasures the appreciation they deserve.