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 "

【9/6 22時販売】ピジョンブラッドルビー 5.2mm/0.930ctルース AIGS Sale price¥198,000

[Koshu Precious Stone Kiriko] Fluorite from Colombia 7.240ct loose with emblem Sale price¥29,800

[Koshu Precious Stone Kiriko] Bicolor Fluorite 6.980ct Loose with Patch Sale price¥59,800

【甲州貴石切子】レインボースキャポライト 2.240ctルース - カラッツSTORE

[Koshu Precious Stone Kiriko PlusThree] Brazilian Rainbow Scapolite 2.240ct Loose Akatsuki "Collaboration" with Patch Sale price¥39,800

Afghanite 0.496ct loose Japanese-German book Sale price¥9,800

Sunstone Scapolite 1.510ct loose Sale price¥12,800

Unheated ruby 0.130ct loose Sale price¥25,800

[Available at 10 PM on August 28th] Pigeon Blood Ruby 0.280ct Loose Stone AIGS Sale price¥49,800

Fluorite 1.420ct loose stone Sale price¥3,980

Afghanite 0.210ct loose Sale price¥6,980

【甲州貴石切子】バイカラーフローライト 19.380ctルース《コラボ》ワッペン付

[Koshu Precious Stone Kiriko] Bicolor Fluorite 19.380ct Loose "Collaboration" with emblem Sale price¥39,800

Ruby 0.213ct loose Sale price¥7,980

[Koshu Precious Stone Kiriko] Yellow Fluorite 30.09ct Loose [Collaboration] With Patch Sale price¥79,800

Let's try jewelry polishing "Do-it-yourself rough stone polishing set" (for beginners: fluorite 2 stone set) Sale price¥2,980

宝石研磨に挑戦してみよう「自分で出来る原石磨きセット」（初心者向け：フローライト・アパタイト2石セット）

Let's try gem polishing "Do-it-yourself rough stone polishing set" (for beginners: fluorite/apatite 2 stone set) Sale price¥2,980

[Resale] [Jeweler's Tools] Black Light, 3 Loose Stones (Ruby, Red Spinel, Oil in Quartz) with Rechargeable Battery Sale price¥6,980

Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for beginners: Inca Rose/Fluorite 2 stone set) Sale price¥2,980

[Available at 10 PM on August 11th] Limited to 10 stones: Pakistani Oil-in-Quartz (Moving Bubbles) - Single Loose Stone (Multiple Purchase Discounts Available) Sale price¥2,980

1 Ruby from Greenland (round cut, 1.2mm)《Discount available for multiple purchases》 Sale price¥2,280

ブラジル産カラーチェンジフローライト1石ルース（6mm,ラウンドカット）《複数購入割引有》

Color change fluorite from Brazil 1 stone loose (6mm, round cut)《Multiple purchase discount available》 Sale price¥2,580

Limited to 17 stones: 1 loose fluorite stone from Rogerley, England. Discounts available for multiple purchases. Sale price¥3,980

1 Ruby from Greenland (heart shape, 4mm)《Discount available for multiple purchases》 Sale price¥5,980

Limited to 8 stones: 1 unheated silky pink sapphire from Vietnam (including silky ruby) Discounts for multiple purchases available Sale price¥4,980

Limited to 12 stones, Pakistani oil in quartz, moving bubbles, 1 loose stone, multiple purchase discounts available Sale price¥4,980

Limited to 17 stones: 1 loose Afghanite stone from Afghanistan. Discounts available for multiple purchases. Sale price¥2,980

Limited to 18 stones: Mozambique ruby (princess cut, 2.3-2.5mm) Multiple purchase discounts available Sale price¥3,980

[2 stones remaining] 1 Tanzanian bicolor mint garnet loose stone (UV type) [Multiple purchase discount available] Sale price¥3,980

Chinese color change fluorite 1 stone loose (6mm, round cut) {Multiple purchase discount available} Sale price¥1,980

Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available] Sale price¥2,980

Afghanite 1 stone loose from Afghanistan《Discount available for multiple purchases》 Sale price¥2,980

Gem Gacha💎 Afghanite 1 stone loose (average 0.14ct) {Multiple purchase discount available} Sale price¥9,800

Set of two fluorite rough stones from Diana Maria and Lady Annabella, UK (multiple purchase discounts available) Sale price¥3,980

Chinese color change fluorite 1 stone loose (7mm, round cut) {Multiple purchase discount available} Sale price¥2,580

《Limited to 8 stones》 [Mr. Sanjay] Hackmanite or Sodalite 1 stone loose (maximum 3.63 ct)《Multiple purchase discount available》 Sale price¥6,980

Mexican Hyalite Opal 2.592ct loose Sale price¥9,800

[On sale at 10pm on August 14th] Afghanistan Hackmanite 0.121ct Loose Stone Sale price¥8,800

Pink fluorite 12.690ct loose Sale price¥9,800

Pink fluorite 6.530ct loose Sale price¥5,980

ブラジル産レインボースキャポライト 3mm/0.133ctルース（ローズカット）

Brazilian rainbow scapolite 3mm/0.133ct loose (rose cut) Sale price¥3,980

Ruby 0.182ct loose Sale price¥5,980

Ice ruby (pink sapphire) from Greenland 0.416ct loose with certificate Sale price¥18,800

Ruby from Greenland 0.268ct loose with certificate Sale price¥18,800

[On Sale at 10 PM on August 5th] Afghanistan Hackmanite 0.761ct Loose Stone (Bicolor) Sale price¥39,800

Mexican Hyalite Opal 1.587ct Loose Sale price¥9,800

Ruby from Greenland 0.421ct loose with certificate Sale price¥18,800

Brazilian rainbow scapolite 3mm/0.101ct loose (rose cut) Sale price¥3,980

Brazilian Rainbow Scapolite 3mm/0.120ct Loose Stone Sale price¥3,980

Ruby from Greenland 0.307ct loose with certificate Sale price¥15,800

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.