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, Random Thoughts, and Things He Like.
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Wednesday, November 23, 2022
Breyite Inclusion In Diamond
Monday, November 21, 2022
Sunday, November 20, 2022
A Synthetic Moissanite Presented As Natural Diamond Rough
Consumers beware. It always happens. If you have doubts, always consult a reputed gem testing laboratories like the GIA.
Sapphire Beneath The Rich Black Soil Of Muling, Northeastern China
Colored stone miners, dealers and gemologists must read. Many thanks to Gems & Gemology for the insightful report.
Wednesday, June 15, 2022
Cuprite And Malachite In Agate From The Yanyuan Region, Sichuan
Take a look at two kinds of copper-bearing inclusions in agate from Yanyuan.
Wednesday, June 01, 2022
Hematite Crystals In Diamond
This rare inclusion offers a glimpse into the long and unique journey each diamond takes to the earth's surface.
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.
Monday, May 30, 2022
Rare Blue Apatite Inclusion In Smoky Quartz
Take a look at an hexagonal apatite inclusion with interference colors in smoky quartz.
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.
Thursday, May 26, 2022
Sugar/Heat-Treated Opal
Opals are treated either to conceal the cracks or to improve the appearance. If doubtful, ask questions.
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.
Saturday, May 07, 2022
Monday, March 07, 2022
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.
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.
Saturday, March 05, 2022
Blue Zircon Malawi
A new source of blue zircon from Malawi is a welcome addition to the colored gemstone trade.
Biogenic Carbon In Pink Corundum
Banded Turquoise
Take a look at the banded turquoise from Zhushan county, Hubei Province, China.
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.
Blue Sapphires From Mogok, Myanmar
The gemological review by researchers at Gems & Gemology, Gemological Institute of America, on blue sapphires from Mogok, Burma, is a must read.