La line

Brazilian rainbow scapolite 6mm/0.516ct loose Sale price¥2,980

[10/10 22:00 Sale] Brazilian Rubellite 4.078ct Loose Stone Sale price¥98,000

【ルージュカット】タンザニア産アンデシン・ラブラドライト（通称名レインボームーンストーン） 1.082ctルース

[On Sale 10/10 at 10 PM] [Rouge Cut] Tanzanian Andesine Labradorite (also known as Rainbow Moonstone) 1.082ct Loose Stone Sale price¥15,800

【カメリアカット】カナダ産ラブラドライト（通称名：ブルームーンストーン） 14mm/9.947ct《コラボ》ルース - カラッツSTORE

[Camellia cut] Labradorite from Canada (common name: Blue Moonstone) 14mm/9.947ct《Collaboration》 Loose Sale price¥29,800

【カメリアカット】カナダ産ラブラドライト（通称名：ブルームーンストーン） 12mm/5.594ct《コラボ》ルースワッペン付 - カラッツSTORE

[Camellia cut] Labradorite from Canada (common name: Blue Moonstone) 12mm/5.594ct《Collaboration》 Loose with emblem Sale price¥25,800

アンデシン・ラブラドライト（通称名レインボームーンストーン） 6mm/0.669ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 6mm/0.669ct Loose Stone Sale price¥9,800

マダガスカル産アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.984ctルース

[On Sale at 10 PM on September 29th] Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 6.3mm/0.984ct Loose Stone (Rose Cut) Sale price¥25,800

[On Sale at 10pm on October 1st] 1.406ct Loose Rubellite from Mozambique Sale price¥69,800

Red beryl 0.173ct loose Sale price¥29,800

Red beryl 0.181ct loose Sale price¥29,800

Rutilated Quartz (Rutilated Quartz) 82.385ct Loose Stone, Japan-Germany Sale price¥29,800

タンザニア産アンデシン・ラブラドライト（通称名ブルームーンストーン） 0.726ctルース

[Available at 10 PM on September 9th] [Dandelion Cut] Tanzanian Andesine Labradorite (also known as Blue Moonstone) 6.0mm/0.726ct Loose Stone Sale price¥49,800

[On Sale at 10 PM on September 14th] Tanzanian Rhodolite Garnet 0.801ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on September 26th] Tanzanian Rhodolite Garnet 0.405ct Loose Stone Sale price¥6,980

[Sold at 10 PM on September 7th] [Koshu Precious Stone Cut Glass] 18K Rose Quartz 15.964ct Necklace by Nikko Kan Sale price¥128,000

Red beryl 0.109ct loose Sale price¥18,800

Red beryl 0.310ct loose Sale price¥39,800

【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

【さくらインカット】レモンクォーツ 20mm/21.540ct《コラボ》ルースワッペン付 - カラッツSTORE

[Sakura Incut] Lemon Quartz 20mm/21.540ct《Collaboration》Loose with emblem Sale price¥69,800

Rose quartz 15mm/10.950ct loose Sale price¥3,980

Rose quartz 15mm/10.850ct loose Sale price¥3,980

Larimar 33.829ct loose Japanese-German book Sale price¥39,800

Pigeon Blood Ruby 0.280ct Loose Sale price¥49,800

Pigeon Blood Ruby 0.340ct Loose Sale price¥59,800

[Available at 10 PM on August 23rd] Limited to 3 stones: Indian Andesine and Labradorite (Rainbow Moonstone) Flower Carving, 6mm, 1 stone [Multiple purchase discounts available] Sale price¥4,980

Red beryl 0.187ct loose Sale price¥29,800

Sweet Home rhodochrosite 2 stone set 2.6mm/0.228ct loose Sale price¥9,800

Ruby 0.213ct loose Sale price¥7,980

アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.550ctルース

Andesine Labradorite (commonly known as Rainbow Moonstone) 0.550ct loose Sale price¥6,980

Red beryl 0.166ct loose Sale price¥49,800

マダガスカル産アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.420ctルース

[On Sale at 10 PM on September 9th] Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.420ct Loose Stone Sale price¥8,800

マダガスカル産アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.401ctルース

[On Sale at 10 PM on September 9th] Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.401ct Loose Stone Sale price¥9,800

マダガスカル産アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.295ctルース

[Available at 10 PM on August 22nd] Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.295ct Loose Stone Sale price¥8,800

マダガスカル産アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.416ctルース

[Available at 10 PM on August 22nd] Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 5.1mm/0.416ct Loose Stone Sale price¥15,800

Red beryl 0.096ct loose Sale price¥22,800

【カメリアカット】カナダ産ラブラドライト（通称名：ブルームーンストーン） 12mm/5.660ct《コラボ》ルースワッペン付 - カラッツSTORE

[Camellia cut] Labradorite from Canada (common name: Blue Moonstone) 12mm/5.660ct《Collaboration》 Loose with emblem Sale price¥25,800

Labradorite 6mm/0.741ct loose (rose cut) Sale price¥3,980

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

Rutilated Quartz (Rutilated Quartz) 110.150ct Loose Sale price¥18,800

【甲州貴石切子plusthree】ローズクォーツ 6.330ctルースワッペン付

[Koshu precious stone Kiriko plusthree] Rose quartz 6.330ct loose with patch Sale price¥25,800

[On Sale at 10 PM on August 5th] Tanzanian Rhodolite Garnet 0.391ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on August 5th] Tanzanian Rhodolite Garnet 0.643ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on August 5th] Tanzanian Rhodolite Garnet 0.511ct Loose Stone Sale price¥6,980

[8/11 22:00 Sale] Tanzanian Rhodolite Garnet 0.734ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on August 17th] Tanzanian Rhodolite Garnet 4.5mm/0.394ct Loose Stone Sale price¥6,980

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.