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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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Sold out ドイツ産アウイナイト 0.122ctルース

German Hauyne 0.122ct Loose Gemstone
Sold out German Auyinite 3.5mm/0.131ct Loose Stone

German Auyinite 3.5mm/0.131ct Loose Stone
Sold out German Hauyne 2.2mm/0.035ct Loose Stone

German Hauyne 2.2mm/0.035ct Loose Stone
Sold out Pakistani oil-in quartz 0.595ct loose

Pakistani oil-in quartz 0.595ct loose
Sold out Star Ruby from Sri Lanka, 5.0mm/1.062ct Loose Stone, with Identification Report

Star Ruby from Sri Lanka, 5.0mm/1.062ct Loose Stone, with Identification Report
Sold out German Auchenite 0.083ct loose stone

German Auchenite 0.083ct loose stone
Sold out Pt900/Pt850アウイナイト0.08ct ペンダント（ネックレス） - カラッツSTORE

[Colorful] Pt900/Pt850 Auinite 0.08ct pendant (necklace)

Sold out 加熱ルビー 4.5mm/0.430ctルース GIT

Unheated Ruby 4.5mm/0.430ct Loose GIT
Sold out ルビー 0.295ctルース

Ruby 0.295ct loose

Sold out ハックマナイト 0.091ctルース

Afghanistan Hackmanite 0.091ct loose stone
Sold out フローライト 3.580ctルース

[Posted in 12533297] Fluorite 3.580ct loose

Sold out アフガナイト 0.496ctルース 日独鑑

Afghanite 0.496ct loose Japanese-German book
Sold out Afghanistan Hackmanite 0.212ct loose stone

Afghanistan Hackmanite 0.212ct loose stone
Sold out メキシコ産ハイアライトオパール 0.258ctルース

Mexican Hyalite Opal 0.258ct Loose (fluoresces even in sunlight)
Sold out 【甲州貴石切子plusthree】ロジャリーフローライト 4.560ctルース 暁《コラボ》 ワッペン付

[Koshu Precious Stones Plusthree] British Rogerian Fluorite 4.560ct Loose Stone

Sold out タイ産ピジョンブラッドルビー 0.380ctルース

Thai Pigeon Blood Ruby 0.380ct Loose AIGS
Sold out モザンビーク産ルビー 0.589ctルース

Mozambique Ruby 4.8mm/0.589ct Loose Stone with Certificate of Authenticity
Sold out [Koshu Precious Stone Cutting] Fluorite in Quartz 6.420ct Loose Stone [Collaboration] Patch

[Koshu Precious Stone Cutting] Fluorite in Quartz 6.420ct Loose Stone [Collaboration] Patch
Sold out [Koshu Precious Stones plusthree] Bicolor Fluorite 5.030ct Loose Stone

[Koshu Precious Stones plusthree] Bicolor Fluorite 5.030ct Loose Stone

Sold out 【甲州貴石切子】スキャポライト 2.01ctルース ワッペン付

[Koshu Precious Stone Cut] Purple Scapolite from Tanzania 2.01ct Loose Patch
Sold out 【甲州貴石切子】バイカラーフローライト 20.850ctルース《コラボ》 ワッペン付

[Koshu Precious Stone Cut] Bicolor Fluorite 20.850ct Loose Stone [Collaboration] Patch
Sold out K18YG コロンビア産エメラルド 0.591ct ペンダント（ネックレス）

K18YG Colombian emerald 0.591ct ruby pendant (necklace)
Sold out ピジョンブラッドルビー 0.940ctルース

Pigeon Blood Ruby 0.940ct Loose GIA
Sold out ブラジル産フローライトインクォーツ 1.885ctルース

Brazilian Fluorite Quartz 1.885ct Loose Stone
Sold out ドイツ産アウイナイト 0.084ctルース

German Awinite 0.084ct loose stone
Sold out アフガニスタン産アウイナイト 0.059ctルース

Afghanistan Awinite 0.059ct loose stone JTL catalog

Sold out ルビー 0.396ctルース

Pigeon Blood Ruby 0.400ct Loose AIGS
Sold out ルビー 0.280ルース

Pigeon Blood Ruby 0.280ct Loose AIGS
Sold out Pt950ビルマ産ルビー0.21ct・ルビーリング

Pt950 Burmese Ruby 0.21ct Ruby Ring
Sold out アフガニスタン産ハックマナイト 0.115ctルース

Afghanistan Hackmanite 0.115ct loose stone
Sold out Pigeon Blood Ruby 0.38ct Loose AIGS

Pigeon Blood Ruby 0.38ct Loose AIGS

Sold out バイカラーフローライト 0.763ctルース

Bicolor Fluorite 0.763ct Loose
Sold out アフガニスタン産ハックマナイト 0.418ctルース

Afghanistan Hackmanite 0.418ct loose stone

Sold out アフガニスタン産グリーンアウイナイト 0.098ctルース

Afghanistan Green Awynite 0.098ct Loose Stone
Sold out Myanmar trapichel ruby ​​0.288ct loose

Myanmar trapichel ruby ​​0.288ct loose
Sold out タイ産クリムゾンレッドルビー 0.930ctルース

Crimson Red Ruby from Thailand 0.930ct Loose GIA
Sold out ミャンマー産トラピッチェルビー 0.248ct原石

Myanmar trapichel ruby ​​0.248ct rough stone

Sold out ビルマ産非加熱スタールビー 0.661ctルース

Burmese unheated star ruby ​​0.661ct loose

Sold out ピジョンブラッドルビー 1.180ctルース AIGS

Pigeon blood ruby ​​1.180ct loose AIGS

Sold out グリーンランド産ルビー 0.685ctルース 証明書付

Ruby from Greenland 0.685ct loose with certificate

Sold out ピジョンブラッドルビー 0.366ctルース 日独鑑

Pigeon blood ruby ​​0.366ct loose Japanese-German book

Sold out ピジョンブラッドルビー 1.180ctルース

Pigeon blood ruby ​​1.180ct loose AIGS

Sold out ピジョンブラッドルビー 1.530ctルース

Pigeon blood ruby ​​1.530ct loose AIGS

Sold out ピジョンブラッドルビー 0.70ctルース AIGS

Pigeon blood ruby ​​0.70ct loose AIGS

Sold out グリーンランド産ルビー 0.726ctルース 証明書付

Ruby from Greenland 0.726ct loose with certificate

Sold out アウイナイト 0.188ctルース

Hauinite 0.188ct loose

Sold out ベトナム産非加熱スタールビー1.490ctルース GIA

Unheated star ruby ​​from Vietnam 1.490ct loose GIA

Sold out モザンビーク産非加熱ルビー 0.270ctルース GIA

Unheated ruby ​​from Mozambique 0.270ct loose GIA

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.

KARATZ・Five Commitments

So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.

KARATZ's Initiatives and Social Contributions

We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.

KARATZ Books

These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.

jeweler's tools

For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.