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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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【12523505更新】フローライト 93.272ctルース

【6/10 22時販売】バイカラーフローライト 93.272ctルース Sale price¥19,800
[On sale at 22:00 on 6/8] Afghanistan Hackmanite 0.212ct loose stone

[On sale at 22:00 on 6/8] Afghanistan Hackmanite 0.212ct loose stone Sale price¥8,800
メキシコ産ハイアライトオパール 0.873ctルース

[12559413] Mexican Hyalite Opal 0.873ct Loose Sale price¥9,800
メキシコ産ハイアライトオパール 0.664ctルース

[12559412] Mexican Hyalite Opal 0.664ct Loose Sale price¥6,980
メキシコ産ハイアライトオパール 3.917ctルース

[12559411] Mexican Hyalite Opal 3.917ct Loose Sale price¥15,800
メキシコ産ハイアライトオパール 1.554ctルース

[12559409] Mexican Hyalite Opal 1.554ct Loose Sale price¥7,980
メキシコ産ハイアライトオパール 1.687ctルース

[On sale at 22:00 on 6/9] Mexican Hyalite Opal 1.687ct Loose Sale price¥9,800
[On sale from 10pm on 5/31] Chinese fluorite 16.590ct loose patch

[On sale from 10pm on 5/31] Chinese fluorite 16.590ct loose patch Sale price¥5,980
ルビー 0.754ctルース 日独

[On sale at 22:00 on 5/29] Ruby 0.754ct loose stone Japanese-German Sale price¥22,800
ルビー 0.258ctルース

[12556645] Ruby 0.258ct loose stone Sale price¥18,800
ビルマ産ルビー 3.72ctルース GIA

[On sale at 10pm on 5/22] Burmese ruby ​​3.725ct loose GIA & Chuho Sale price¥198,000
Let's try jewelry polishing "Do-it-yourself rough stone polishing set" (for beginners: fluorite 2 stone set)

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

[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)

Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for beginners: Inca Rose/Fluorite 2 stone set) Sale price¥2,980
Oil-in-quartz from Pakistan《Moving bubble type》1 stone loose《Discount available for multiple purchases》

Oil-in-quartz from Pakistan《Moving bubble type》1 stone loose《Discount available for multiple purchases》 Sale price¥3,980
1 Ruby from Greenland (round cut, 1.2mm)《Discount available for multiple purchases》

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
《限定17石》イギリス・ロジェリー産フローライト1石ルース《複数購入割引有》

Limited to 17 stones: 1 loose fluorite stone from Rogerley, England. Discounts available for multiple purchases. Sale price¥3,980
グリーンランド産ルビー 1石（ハートシェイプ,4mm）

1 Ruby from Greenland (heart shape, 4mm)《Discount available for multiple purchases》 Sale price¥5,980
Limited to 12 stones, Pakistani oil in quartz, moving bubbles, 1 loose stone, multiple purchase discounts available

Limited to 12 stones, Pakistani oil in quartz, moving bubbles, 1 loose stone, multiple purchase discounts available Sale price¥4,980
Limited to 8 stones: 1 unheated silky pink sapphire from Vietnam (including silky ruby) Discounts for multiple purchases available

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 17 stones: 1 loose Afghanite stone from Afghanistan. Discounts available for multiple purchases.

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

Afghanite 1 stone loose from Afghanistan《Discount available for multiple purchases》 Sale price¥2,980
ジェムガチャ💎 アフガナイト1石 ルース（平均0.14ct）《複数購入割引有》

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)

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}

Chinese color change fluorite 1 stone loose (7mm, round cut) {Multiple purchase discount available} Sale price¥2,580
Limited to 18 stones: Mozambique ruby ​​(princess cut, 2.3-2.5mm) Multiple purchase discounts available

Limited to 18 stones: Mozambique ruby ​​(princess cut, 2.3-2.5mm) Multiple purchase discounts available Sale price¥3,980
《Limited to 8 stones》 [Mr. Sanjay] Hackmanite or Sodalite 1 stone loose (maximum 3.63 ct)《Multiple purchase discount available》

《Limited to 8 stones》 [Mr. Sanjay] Hackmanite or Sodalite 1 stone loose (maximum 3.63 ct)《Multiple purchase discount available》 Sale price¥6,980
《Limited to 6 stones》1 mint garnet from Tanzania (6 x 4mm, oval cut)《Multiple purchase discount available》

《Limited to 6 stones》1 mint garnet from Tanzania (6 x 4mm, oval cut)《Multiple purchase discount available》 Sale price¥5,980
[4 stones remaining] 1 Tanzanian bicolor mint garnet loose stone (UV type) [Multiple purchase discount available]

[4 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}

Chinese color change fluorite 1 stone loose (6mm, round cut) {Multiple purchase discount available} Sale price¥1,980
アフガニスタン産ハックマナイト 0.190ctルース

Afghanistan Hackmanite 0.190ct loose stone Sale price¥11,800
Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available]

Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available] Sale price¥2,980
Mexican Hyalite Opal 2.592ct loose

Mexican Hyalite Opal 2.592ct loose Sale price¥9,800
モザンビーク産ルビー 0.589ctルース

[On sale from 10pm on 5/25] Mozambique Ruby 4.8mm/0.589ct Loose Stone with Certificate of Authenticity Sale price¥45,800
ドイツ産アウイナイト 0.119ctルース

[On sale from 10pm on 5/23] German awinite 0.119ct loose stone Sale price¥49,800
ドイツ産アウイナイト 0.129ctルース

[On sale from 10pm on 5/23] German awinite 0.129ct loose stone Sale price¥55,800
スタールビー 0.473ctルース

[On sale from 22:00 on 5/5] Sri Lankan Star Ruby 0.473ct Loose Stone with Certificate of Authenticity Sale price¥14,800
【甲州貴石切子】フローライト 3.280ctルース

[On sale from 10pm on 5/4] [Koshu Precious Stone Cut] Green Fluorite 10mm/3.280ct Loose Stone [Collaboration] Patch Sale price¥29,800
[On sale from 22:00 on 5/2] [Koshu Precious Stone Cutting] Fluorite in Quartz 6.420ct Loose Stone [Collaboration] Patch

[On sale from 22:00 on 5/2] [Koshu Precious Stone Cutting] Fluorite in Quartz 6.420ct Loose Stone [Collaboration] Patch Sale price¥45,800
【甲州貴石切子】バイカラーフローライト 5.030ctルース - カラッツSTORE

[On sale from 10pm on 4/29] [Koshu Precious Stones Plusthree] Bicolor Fluorite 5.030ct Loose Patch Sale price¥29,800
【甲州貴石切子】スキャポライト 2.01ctルース ワッペン付

[On sale from 10pm on 4/28] [Koshu Precious Stone Cut] Purple Scapolite from Tanzania 2.01ct loose patch Sale price¥45,800
[On sale from 10pm on 5/1] [Koshu Precious Stone Cut] Bicolor Fluorite 4.280ct Loose Patch

[On sale from 10pm on 5/1] [Koshu Precious Stone Cut] Bicolor Fluorite 4.280ct Loose Patch Sale price¥39,800
[On sale from 10pm on 4/26] [Koshu Precious Stone Cut] Bicolor Fluorite 20.850ct Loose Stone [Collaboration] Patch

[On sale from 10pm on 4/26] [Koshu Precious Stone Cut] Bicolor Fluorite 20.850ct Loose Stone [Collaboration] Patch Sale price¥49,800
メキシコ産ハイアライトオパール 0.348ctルース

[On sale from 10pm on 5/10] Mexican Hyalite Opal 4.9mm/0.348ct Loose Sale price¥12,800
メキシコ産ハイアライトオパール 1.134ctルース

[On sale from 10pm on 5/10] Mexican Hyalite Opal 6.9mm/1.134ct Loose Sale price¥25,800
メキシコ産ハイアライトオパール 0.439ctルース

[On sale from 10pm on 5/1] Mexican Hyalite Opal 5.2mm/0.439ct Loose Sale price¥12,800

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.

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