Spring 2024 Auction Highlights
Several lots sold during the spring auction season far exceeded their presale estimates.
A Visit to Clarity Diamond’s CVD Facility
An in-depth look at Clarity Diamond’s CVD facility in Austin, Texas.
A Large Multicolored Natural Blister Pearl
A large baroque-shaped blister pearl with a unique multicolored appearance is examined in the Mumbai laboratory.
Unique Moiré-Pattern Metallic Inclusion in Paraíba Tourmaline
An intriguing inclusion scene is analyzed in a Paraíba tourmaline from Brazil.
“Conch Shell” in Diamond
A transparent feather observed in a natural diamond resembles a conch shell.
Fireworks in Ruby
An unheated purplish red ruby cabochon displays a white double-star phenomenon.
Pyritic Inclusions in Oregon Sunstone
Examination of an Oregon sunstone sample reveals pyritic and copper inclusions.
Gems & Gemology at Ninety: Consistency and Change
An overview of the Summer 2024 Gems & Gemology content.
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