fluorescent gemstones

There are some gemstones that emit a neon color when exposed to ultraviolet light. It is thought that the fluorescent substances contained in these materials emit light in response to ultraviolet light. When illuminated with black lights in a darkened room, the neon glow is truly a mystical world. There are many fluorescent gemstones, and they come in a variety of colors. From famous stones that everyone knows to rare rare stones. I think it's fun to collect various things and compare them.

Karatz GemMagazine
" Fluorescent gemstone "

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Ruby 0.187ct loose

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Ruby 2.8mm/0.117ct loose

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Ruby 0.219ct loose

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Ruby 0.327ct loose

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Ruby 0.300ct loose

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[KEN] Purple Scapolite from Tanzania 5mm/0.313ct loose

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[Mr. KEN] Purple Scapolite from Tanzania 0.262ct loose

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Ruby in hook site from India 11.734ct loose with emblem

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Pigeon blood ruby 1.180ct loose AIGS

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Pigeon blood ruby 1.530ct loose AIGS

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Pigeon blood ruby 0.70ct loose AIGS

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【KEN氏】アメリカ産フローライト 0.870ctルース - カラッツSTORE

[KEN] American fluorite 0.870ct loose

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【KEN氏】アメリカ産フローライト 0.907ctルース - カラッツSTORE

[KEN] American fluorite 0.907ct loose

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Burmese unheated ruby 1.234ct loose

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Ruby from Greenland 0.726ct loose with certificate

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Hauinite 0.188ct loose

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Hauinite 0.330ct loose

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Hauinite 0.335ct loose

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Hauinite 0.209ct loose

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Hauinite 0.275ct loose

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Ruby 0.537ct Ruth Japanese and German

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Ruby 0.381ct Ruth Japanese and German

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Hauinite 0.092ct loose

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Hauinite 0.082ct loose

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Angel feather fluorite 28.220ct loose with patch

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Angel feather fluorite 66.640ct loose with patch

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Angel feather fluorite 19.020ct loose with patch

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Auinite 2.1mm/0.035ct loose

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Auinite 2mm/0.029ct loose

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Auinite 1.7mm/0.022ct loose

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Hauinite 0.031ct loose

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Unheated star ruby from Vietnam 1.490ct loose GIA

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Unheated ruby from Mozambique 0.270ct loose GIA

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Unheated ruby from Mozambique 0.240ct loose GIA

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【甲州貴石切子】イエロースキャポライト（UVタイプ） 4.880ctルースワッペン付

[Koshu Precious Stone Kiriko] Yellow Scapolite (UV type) 4.880ct loose with patch

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[Koshu Precious Stone Kiriko] Purple Scapolite 5.450ct Loose with Patch

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[Koshu Precious Stone Kiriko] UV type mint garnet 1.900ct loose with patch

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Pigeon blood ruby 0.950ct loose AIGS

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Afghanite 0.180ct loose

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Star Ruby 0.866ct loose

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Hackmanite 48.240ct rough stone

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Hackmanite 0.210ct loose

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Hackmanite 0.390ct loose

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Auinite 2.5mm/0.080ct loose

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Ruby from Mozambique 5mm/0.591ct loose (round)

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Ruby 3.5mm/0.284ct loose (round)

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Ruby 0.250ct loose

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Ruby from Burma 3.5mm/0.262ct loose (round cut)

KARATZ Custom Made

Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.

KARATZ・Five Commitments