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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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Pakistani Oil in Quartz 0.651ct Loose Stone

Pakistani Oil in Quartz 0.651ct Loose Stone Sale price¥9,800
Pakistani oil-in quartz 0.595ct loose

Pakistani oil-in quartz 0.595ct loose Sale price¥8,800
Pakistani Oil in Quartz 0.443ct Loose Stone

Pakistani Oil in Quartz 0.443ct Loose Stone Sale price¥6,980
マダガスカル産オイルインクォーツ 24.653ct原石

Oil-in-quartz 24.653ct rough stone from Madagascar Sale price¥9,800
マダガスカル産オイルインクォーツ 31.973ct原石

Oil-in-quartz 31.973ct rough stone from Madagascar Sale price¥12,800
マダガスカル産オイルインクォーツ 30.677ct原石

Oil-in-quartz 30.677ct rough stone from Madagascar Sale price¥12,800
Mexican Hyalite Opal 0.774ct Loose (Faceted Cut)

Mexican Hyalite Opal 0.774ct Loose (Faceted Cut) Sale price¥8,800
Mexican Hyalite Opal 7.5mm/1.221ct Loose (Faceted Cut)

Mexican Hyalite Opal 7.5mm/1.221ct Loose (Faceted Cut) Sale price¥14,800
アフガニスタン産ハックマナイト 0.111ctルース

Afghanistan Hackmanite 0.111ct loose stone Sale price¥6,980
オイルインクォーツ 22.073ct原石

Oil-in-quartz 22.073ct rough stone from Madagascar Sale price¥6,980
Pakistani oil-in quartz 0.325ct loose (facet cut, bubble moving type)

Pakistani oil-in quartz 0.325ct loose (facet cut, bubble moving type) Sale price¥9,800
パキスタン産オイルインクォーツ 0.361ctルース

Pakistani oil-in quartz 0.361ct loose Sale price¥11,000
パキスタン産オイルインクォーツ 0.535ctルース

Pakistani oil-in quartz 0.535ct loose Sale price¥18,800
ミャンマー産非加熱ルビー 0.433ctルース

Unheated Ruby from Myanmar 0.433ct Ruth Japanese-German Edition Sale price¥59,800
スキャポライトキャッツアイ 9.733ctルース

Scapolite Cat's Eye 9.733ct Loose Sale price¥8,800
ミャンマー産トラピッチェルビー 0.179ct原石

Myanmar trapichel ruby ​​0.179ct rough stone Sale price¥3,980
【12545153掲載】ミャンマー産トラピッチェルビー 0.160ct原石

Myanmar trapichel ruby ​​0.160ct rough stone Sale price¥5,980
ミャンマー産トラピッチェルビー 0.152ct原石

Myanmar trapichel ruby ​​0.152ct rough stone Sale price¥4,980
ミャンマー産トラピッチェルビー 0.202ct原石

Trapichel ruby ​​from Myanmar 0.202ct rough stone Sale price¥3,980
ミャンマー産トラピッチェルビー 0.261ct原石

Myanmar trapichel ruby ​​0.261ct rough stone Sale price¥4,980
イギリス産ロジャリーフローライト 4.738ctルース

British Rosary Fluorite 4.738ct loose Sale price¥9,800
イギリス産ロジャリーフローライト 1.841ctルース

British Rosary Fluorite 1.841ct loose Sale price¥5,980
【カラフリ】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) Sale price¥79,800
《有楽町202302持ち出し中》ルビー 0.194ctルース - カラッツSTORE

Ruby 0.194ct loose Sale price¥8,800
ルビー 0.472ctルース

[On sale at 10pm on September 22nd] Tanzanian Ruby 0.472ct Loose Sale price¥5,980
スキャポライトキャッツアイ 8.880ctルース

Scapolite Cat's Eye 8.880ct Loose Sale price¥8,800
スキャポライト 5.57ctルース

Orange Scapolite 5.57ct loose Sale price¥19,800
Sold out 【お子様限定】宝石磨きに挑戦してみよう「自分で出来る原石磨きセット」（フローライト・宝石アイシングクッキー付き）

[For kids] Let's try gem polishing "Do-it-yourself rough stone polishing set" (includes fluorite and gemstone icing cookies) *Subject to gemstone polishing contest*

Sold out 【大人用】宝石磨きに挑戦してみよう「自分で出来る原石磨きセット」（初心者向け：バイカラーフローライト）・ボルダーオパール付※原石磨きコンテスト対象 ※

[For adults] Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for beginners: bicolor fluorite) with boulder opal *Subject to the rough stone polishing contest*

Sold out 含浸ルビー・天然ルビー見分け2点セット - KARATZ STORE｜カラッツSTORE

[Jeweler's Tools] 2-piece set for distinguishing impregnated rubies and natural rubies (discount available for multiple purchases)

Sold out 1 stone loose quartz in oil from Pakistan《Discount available for multiple purchases》

1 stone loose quartz in oil from Pakistan《Discount available for multiple purchases》

Sold out [On sale 10/26 at 10 PM] {3 stones left} Ruby Loose Gacha: Win a 0.59ct Pigeon Blood Ruby with AIGS or a Burmese Star Ruby {Multiple purchase discounts available}

[On sale 10/26 at 10 PM] {3 stones left} Ruby Loose Gacha: Win a 0.59ct Pigeon Blood Ruby with AIGS or a Burmese Star Ruby {Multiple purchase discounts available}
Sold out グリーンランド産アイスルビー 1石（ハートシェイプ,4mm,ピンクサファイア）《複数購入割引有》

Greenland Ice Ruby 1 stone (heart shape, 4mm, pink sapphire) {Multiple purchase discount available}

Sold out 【11/2 22時販売】《限定15石》ブルー石ガチャ（非加熱ブラジル産パライバトルマリン,パライバトルマリン,コバルトガーナイト鑑別書付,インディゴライトトルマリン・サファリン・ベニトアイト・アウイナイト）《複数購入割引有》

【11/2 22時販売】《限定15石》ブルー石ガチャ（非加熱ブラジル産パライバトルマリン,パライバトルマリン,コバルトガーナイト鑑別書付,インディゴライトトルマリン・サファリン・ベニトアイト・アウイナイト）《複数購入割引有》
Sold out グリーンランド産ルビー 1石（ラウンドカット,2mm）

1 Ruby from Greenland (round cut, 2mm) with certificate

Sold out Hackmanite 1 stone (purple)

Hackmanite 1 stone (purple)

Sold out Mini Kite Cut Loose Stone (Includes 2 Paraiba Tourmalines, Green Beryl, Ruby, Peridot, etc.) {Multiple Purchase Discounts Available}

Mini Kite Cut Loose Stone (Includes 2 Paraiba Tourmalines, Green Beryl, Ruby, Peridot, etc.) {Multiple Purchase Discounts Available}

Sold out Greenland Ruby Loose (approx. 2.3mm, Top Color, Certificate Included) (Multiple Purchase Discounts Available)

Greenland Ruby Loose (approx. 2.3mm, Top Color, Certificate Included) (Multiple Purchase Discounts Available)

Sold out Limited to 5 stones: 1 Mexican Hyalite Opal loose stone (average 0.5ct) Multiple purchase discounts available

Limited to 5 stones: 1 Mexican Hyalite Opal loose stone (average 0.5ct) Multiple purchase discounts available
Sold out グリーンランド産アイスルビー 1石（ハートシェイプ,4mm）

Ice ruby ​​from Greenland 1 stone (heart shape, 4mm) Comes with original pouch

Sold out ハックマナイト 0.698ctルース

Hackmanite 0.698ct loose
Sold out ピジョンブラッドルビー 3.7mm/0.230ctルース AIGS

[10/12 22:00 Sale] Pigeon Blood Ruby 3.7mm/0.230ct Loose Stone AIGS

Sold out ブラジル産フローライトインクォーツ 3.507ctルース

[On Sale at 10pm on October 5th] Brazilian Fluorite in Quartz 3.507ct Loose Stone
Sold out UVタイプミントガーネット 0.435ctルース

UV type mint garnet 0.435ct loose

Sold out ブラジル産レインボースキャポライト 0.652ctルース

Brazilian rainbow scapolite 6mm/0.652ct loose
Sold out ブラジル産フローライトインクォーツ 3.963ctルース

[On Sale at 10 PM on October 3rd] Brazilian Fluorite in Quartz 3.963ct Loose Stone

Sold out フローライト 16.786ctルース

Fluorite 16.786ct loose
Sold out 非加熱ピジョンブラッドルビー 0.300ctルース AIGS

Unheated Pigeon Blood Ruby 0.300ct Loose

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.