“Soap Bubbles” in Yellow Sphene
A Large Multicolored Natural Blister Pearl
Unique Moiré-Pattern Metallic Inclusion in Paraíba Tourmaline
“Conch Shell” in Diamond
Fireworks in Ruby
Pyritic Inclusions in Oregon Sunstone
Prismatic Zircon in Kashmir Sapphire
Snowflakes in Opal
Laboratory Growth of Gem Materials and the Attempt to Replicate Nature
Diffusion-Induced Blue Spinel-Like Layer on Natural Sapphire
Gold-Plated Gold
Rare Gadolinite Gemstone
Gemstone Artisan Keycaps
Paraíba-Like Synthetic Sapphire
Two flame-fusion synthetic sapphires with a Paraíba-like color are examined at GIA’s Carlsbad lab.
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