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Pt950ブラジル産パライバトルマリン0.034ctリング（フリュクーシュ枠・オーバルカット）

Pt950 Brazilian Paraiba Tourmaline Ring (Fluid Setting, Oval Cut) Sale price¥64,800
ブラジル産バイカラートルマリン 0.502ctルース

Brazilian bicolor tourmaline 0.502ct loose stone Sale price¥12,800
K18PGブラジル産パライバトルマリン0.286ct・グランディディエライトリング GIA

K18PG Brazilian Paraiba Tourmaline 0.286ct Grandidierite Ring GIA Sale price¥198,000
ブラジル産パライバトルマリン 0.233ctルース（CuO:1.6％.MnO:2.4％）

Brazilian Paraiba Tourmaline 0.233ct loose stone (CuO: 1.6%. MnO: 2.4%) Sale price¥358,000
Benitoite 1.8mm/0.025ct loose stone (colorless benitoite)

Benitoite 1.8mm/0.025ct loose stone (colorless benitoite) Sale price¥12,800
アメリカ産レッドベリル 0.207ctルース

American red beryl 0.207ct loose Sale price¥49,800
クリソベリルキャッツアイ 2.843ctルース

Chrysoberyl cat's eye 2.843ct loose Sale price¥39,800
マダガスカル産ペツォッタイト 0.128ctルース

Pezzotite from Madagascar 0.128ct loose Sale price¥6,980
マダガスカル産ペツォッタイト 0.142ctルース

Pezzottite from Madagascar 0.142ct loose Sale price¥9,800
マダガスカル産ペツォッタイト 0.129ctルース

Pezzotite from Madagascar 0.129ct loose Sale price¥6,980
マダガスカル産ペツォッタイト 0.087ctルース

Pezzottite from Madagascar 0.087ct loose Sale price¥6,980
バイカラートルマリン 0.675ctルース

Bicolor tourmaline 0.675ct loose Sale price¥6,980
ブラジル産グリーン・スポジュメン 2.033ctルース

Benitoite 2.2mm/0.229ct loose Sale price¥57,800
スリランカ産クリソベリルキャッツアイ 5.176ctルース

Chrysoberyl cat's eye from Sri Lanka 5.176ct loose Sale price¥198,000
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
Sold out 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)

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 [On sale 10/31 at 22:00] 《Limited to 15 stones》 Top-quality benitoite (2mm, round cut) loose stone 《Multiple purchase discount available》

[On sale 10/31 at 22:00] 《Limited to 15 stones》 Top-quality benitoite (2mm, round cut) loose stone 《Multiple purchase discount available》
Sold out 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)
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 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」（中級者向け：プレーナイト・葡萄石）

Let's try jewelry polishing "Do-it-yourself rough stone polishing set" (for intermediate users: playnite/grape stone)

Sold out Raw peridot + 2 loose stones set (August birthstone)《Discount available for multiple purchases》

Raw peridot + 2 loose stones set (August birthstone)《Discount available for multiple purchases》
Sold out クリソベリルキャッツアイ 1石（2月新誕生石）

Chrysoberyl Cat's Eye 1 stone (February new birthstone)

Sold out Brazilian Paraiba Tourmaline (Batalha Mine) Gacha 💎 Usually ¥45,800 With sorting, includes unheated. 《Multiple purchase discount available》

Brazilian Paraiba Tourmaline (Batalha Mine) Gacha 💎 Usually ¥45,800 With sorting, includes unheated. 《Multiple purchase discount available》

Sold out 【猫カット】プレーナイト（6mm） - カラッツSTORE

[Cat cut] Play night (6mm)

Sold out Benitoite 1 stone (round cut, 2.0mm)《Multiple purchase discount available》

Benitoite 1 stone (round cut, 2.0mm)《Multiple purchase discount available》

Sold out Limited Quantity: 2mm Benitoite (Top Quality Ice Blue) (Multiple Purchase Discounts Available)

Limited Quantity: 2mm Benitoite (Top Quality Ice Blue) (Multiple Purchase Discounts Available)

Sold out [10/ 22:00 Sale] 《Limited to 15 Stones》 Rare Stone Gacha 《Multiple Purchase Discount Available》

[10/ 22:00 Sale] 《Limited to 15 Stones》 Rare Stone Gacha 《Multiple Purchase Discount Available》
Sold out ブルーベリル（マシシベリル）＆ミントグリーンベリル2石セット

[Resale] Blue Beryl (Mashishi Beryl) & Mint Green Beryl 2 stone set《Multiple purchase discount available》

Sold out 《Limited to 18 Stones》Brazilian Paraiba Tourmaline Gacha with Sorting (CuO: 2.1%, MnO: 2.2%) Normally 45,800 JPY《Multiple Purchase Discount Available》

《Limited to 18 Stones》Brazilian Paraiba Tourmaline Gacha with Sorting (CuO: 2.1%, MnO: 2.2%) Normally 45,800 JPY《Multiple Purchase Discount Available》
Sold out Limited to 20 stones! Includes 2 Koshu Kiriko fire opals and 1 loose fire opal. Discounts available for multiple purchases.

Limited to 20 stones! Includes 2 Koshu Kiriko fire opals and 1 loose fire opal. Discounts available for multiple purchases.
Sold out Limited Quantity: Russian Phenakite (Round Cut, 3mm) Loose Stone (Multiple Purchase Discounts Available)

Limited Quantity: Russian Phenakite (Round Cut, 3mm) Loose Stone (Multiple Purchase Discounts Available)
Sold out Brazilian Paraiba Tourmaline (1.0mm, top quality)《Multiple purchase discount available》

Brazilian Paraiba Tourmaline (1.0mm, top quality)《Multiple purchase discount available》

Sold out Limited to 25 stones: Brazilian Paraiba Tourmaline (including bicolor, Batalha) rough stones, average size 0.1ct. Discounts for multiple purchases available.

Limited to 25 stones: Brazilian Paraiba Tourmaline (including bicolor, Batalha) rough stones, average size 0.1ct. Discounts for multiple purchases available.
Sold out 《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.
Sold out [On sale 8/15 at 10 PM JST] Colombian Emerald Gacha featuring Shimizu Kisaki's 8mm Clover In-cut (regularly 79,800 JPY) - only 15 stones available! (Bonus green beryl included) [Multiple purchase discount available]

[On sale 8/15 at 10 PM JST] Colombian Emerald Gacha featuring Shimizu Kisaki's 8mm Clover In-cut (regularly 79,800 JPY) - only 15 stones available! (Bonus green beryl included) [Multiple purchase discount available]
Sold out 《Limited to 12 Stones》Rare Stone Gacha 💎 Cinnabar from China, Paraiba Tourmaline from Mozambique, Grandidierite, etc.《Multiple Purchase Discount Available》

《Limited to 12 Stones》Rare Stone Gacha 💎 Cinnabar from China, Paraiba Tourmaline from Mozambique, Grandidierite, etc.《Multiple Purchase Discount Available》
Sold out Limited to 17 stones: Tanzanian bicolor sapphire, loose stone (multiple purchase discounts available)

Limited to 17 stones: Tanzanian bicolor sapphire, loose stone (multiple purchase discounts available)
Sold out 《Limited to 12 items》 Blue Gemstone Gacha: Paraiba Tourmaline, Euclase, Tanzanite, etc. (Plus 1 Aquamarine)《Multi-purchase discount available》

《Limited to 12 items》 Blue Gemstone Gacha: Paraiba Tourmaline, Euclase, Tanzanite, etc. (Plus 1 Aquamarine)《Multi-purchase discount available》
Sold out [On Sale June 6th at 10 PM JST] "Limited 13 Stones" Fluorite Gacha including flawed Koshu cut gemstones "Bulk Purchase Discount Available"

[On Sale June 6th at 10 PM JST] "Limited 13 Stones" Fluorite Gacha including flawed Koshu cut gemstones "Bulk Purchase Discount Available"

Sold out 《Limited to 12 stones》Russian alexandrite and alexandrite from different origins (normally 69,800 yen) + free Sri Lankan chrysoberyl crystal《Multiple purchase discount available》

《Limited to 12 stones》Russian alexandrite and alexandrite from different origins (normally 69,800 yen) + free Sri Lankan chrysoberyl crystal《Multiple purchase discount available》
Sold out 《Limited to 15 Stones》Fluorite Gacha including 2 Koshu-Kiseki-Kiriko stones (normally 49,800 yen) with 1 CC fluorite stone as a bonus《Multiple Purchase Discount Available》

《Limited to 15 Stones》Fluorite Gacha including 2 Koshu-Kiseki-Kiriko stones (normally 49,800 yen) with 1 CC fluorite stone as a bonus《Multiple Purchase Discount Available》
Sold out 《Limited to 15 Stones》Koshu Kiseki Kiriko 《Moon-Cut Kiriko》Blue Topaz Gacha - 1 Loose Stone including 10ct Blue Topaz 《Multiple Purchase Discount Available》

《Limited to 15 Stones》Koshu Kiseki Kiriko 《Moon-Cut Kiriko》Blue Topaz Gacha - 1 Loose Stone including 10ct Blue Topaz 《Multiple Purchase Discount Available》

Sold out Limited to 9 stones: Australian black opal (including semi-black opal) loose stone (includes a bonus white opal) (Multiple purchase discounts available)

Limited to 9 stones: Australian black opal (including semi-black opal) loose stone (includes a bonus white opal) (Multiple purchase discounts available)

Sold out Brazilian London Blue Topaz 1 Stone Loose (6mm, Round Cut) {Multiple Purchase Discounts Available}

Brazilian London Blue Topaz 1 Stone Loose (6mm, Round Cut) {Multiple Purchase Discounts Available}
Sold out 1 stone peridot (pyramid cut, 5mm)《Multiple purchase discount available》

1 stone peridot (pyramid cut, 5mm)《Multiple purchase discount available》

Sold out 《Limited to 10 stones》Paraiba Gacha: Win a Brazilian Paraiba Tourmaline (CuO: 1.4%, MnO: 2.7%), usually priced at 39,800 yen 《Multi-purchase discounts available》

《Limited to 10 stones》Paraiba Gacha: Win a Brazilian Paraiba Tourmaline (CuO: 1.4%, MnO: 2.7%), usually priced at 39,800 yen 《Multi-purchase discounts available》
Sold out Bicolor Gacha including Brazilian parti-colored Paraiba tourmaline (CuO: 1.7%, MnO: 2.9%), bicolor sapphire, bicolor tourmaline, and specially cut bicolor fluorite, normally 79,800 JPY (multiple purchase discount available)

Bicolor Gacha including Brazilian parti-colored Paraiba tourmaline (CuO: 1.7%, MnO: 2.9%), bicolor sapphire, bicolor tourmaline, and specially cut bicolor fluorite, normally 79,800 JPY (multiple purchase discount available)

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.