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《Limited Edition - Pop-up Event Special》Gem Gacha 💎 Win gems such as red sapphire with a certificate, chameleon diamond, imperial topaz, alexandrite, and gems polished by Mr. Sanje. 《Multiple Purchase Discount Available》 Sale price¥2,980

Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases. Sale price¥2,980

[On sale June 13th at 10 PM] Pakistani Lapis Lazuli (Lazurite) 0.103ct Loose Stone with Certification Sale price¥19,800

Sold out

【12563291掲載】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） 1.904ctルース

【Sales start June 16, 10 PM JST】Madagascar Andesine-Labradorite (Common Name: Rainbow Moonstone) 1.904 ct Loose Stone

American Red Beryl 0.147ct Loose Sale price¥35,800

American Red Beryl 0.132ct Loose Sale price¥33,800

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） 0.585ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.585ct loose stone Sale price¥12,800

[Sales start 10 PM on 6/6] Madagascar Labradorite 0.823ct Loose Gemstone Sale price¥7,980

American red beryl 0.143ct loose Sale price¥35,800

[On sale June 6th at 10 PM] Brazilian Rubellite 2.793ct Loose Stone with Certificate Sale price¥59,800

[Sale on June 13th at 10 PM] Ruby 0.820ct Loose Stone - Hogikyo Sale price¥39,800

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） 1.101ctルース

[On sale May 30th, 10 PM JST] Madagascar Andesine-Labradorite (commonly known as Rainbow Moonstone) 6.0mm/1.101ct loose stone Sale price¥16,800

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） 0.556ctルース

[On sale May 30th at 10 PM] Madagascar Andesine-Labradorite (commonly known as Rainbow Moonstone) 0.556ct Loose Stone Sale price¥8,800

[On Sale June 2nd, 10 PM JST] Mozambique Ruby 0.464ct Loose Gemstone with Identification Report Sale price¥29,800

American red beryl 0.160ct loose Sale price¥89,800

Unheated Mozambique Ruby 2.7mm/0.135ct Loose Sale price¥19,800

[Jeweler's Tools] 3 black light loose pieces (ruby, red spinel rough, oil-in-quartz) with rechargeable battery Sale price¥6,980

Indian Andesine Labradorite (hexagonal cut, 3 x 5mm) 1 stone (discount available for multiple purchases) Sale price¥2,980

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

Brazilian rutilated quartz (rutilated quartz) 1 loose stone (6mm) {Multiple purchase discounts available} Sale price¥1,500

Brazilian rutilated quartz (rutile/rutile quartz (rutilated quartz)) 1 loose stone (6.0-6.5mm, for beginners) {Multiple purchase discounts available} Sale price¥2,580

Limited to 23 stones: Labradorite & Andesine Labradorite 2-stone set (Hexagonal cut, 3mm) Multiple purchase discounts available Sale price¥2,980

Rutilated quartz 1 stone loose (12mm)《Multiple purchase discount available》 Sale price¥1,980

Limited to 25 stones: One loose rhodochrosite stone (4mm cabochon cut) from Sutton Holm, USA. Discounts available for multiple purchases. Sale price¥4,580

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

January birthstone rhodolite garnet rough stone and loose stone set of 2 (from Zambia) {Multiple purchase discounts available} {For beginners} Sale price¥2,980

【Sale starts 4/ at 10 PM JST】《Limited to 15 pieces》Tucson Gem Gacha 💎 Benitoite, Italian Leucite, Pakistani Lazulite, etc. 《Multi-item discount available》 Sale price¥5,980

Labradorite 1 stone loose (12 x 16mm)《Multiple purchase discount available》 Sale price¥2,580

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 10 stones》Plumeria cut carving (Peridot, Blue Topaz, Citrine, Rose Quartz) 1 stone 《Bulk purchase discount available》 Sale price¥1,980

Limited to 11 stones: Brazilian rhodonite in quartz (cabochon, 7.5-8.5mm) 1 loose stone. Discounts available for multiple purchases. Sale price¥2,980

Limited to 7 stones: 1 Tanzanian rhodolite garnet loose stone (polished by American polisher KEN) Multiple purchase discounts available Sale price¥3,980

Limited to 18 Stones: 3mm Rhodolite Garnet from Sri Lanka, 1 stone loose. Discounts for multiple purchases. Sale price¥2,980

Limited quantity: 1 impregnated ruby loose (4mm, round cut, identification instructions included) Multiple purchase discounts available Sale price¥1,980

Limited to 5 stones: 1 Brazilian Rhodonite in Quartz (faceted cut) (Multiple purchase discounts available) Sale price¥4,980

{2 stones remaining} 1 Labradorite loose stone (20 x 15 mm, for beginners) {Multiple purchase discounts available} Sale price¥3,980

Labradorite 1 stone (spherical, 6mm) loose (multiple purchase discount available) Sale price¥2,980

1.758 ct Ruby Loose Stone from Vietnam with Identification Report Sale price¥49,800

Mozambique Ruby 0.544ct Loose Stone with Certificate of Authenticity Sale price¥39,800

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） 1.911ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 1.911ct loose stone Sale price¥39,800

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） 3.251ctルース

Andesine Labradorite (also known as Rainbow Moonstone) 7.7mm/3.251ct Loose Stone (Sphere) Sale price¥29,800

[On sale May 30th at 10 PM] [Colorfri] K18 Synthetic Ruby / Synthetic Spinel Pendant Top (Necklace Top) with Certificate of Authenticity Sale price¥98,000

[On sale May 15th, 10 PM JST] Brazilian Lazulite (0.052ct Loose Stone) with Certification Sale price¥32,800

[On sale May 10th, 10 PM JST] 6 Limited Pieces - Brazilian Mica in Rose Quartz (One stone), Multiple Purchase Discount Available Sale price¥3,980

[On sale May 10th at 10 PM] "Limited 11 Stones" Brazilian Mica in Rose Quartz (1 stone) "Multiple purchase discount available" Sale price¥3,980

[Sales begin May 10, 10 PM JST] Afghanistan Lapis Lazuli 9.7mm / 3.268ct Loose Stone (Rose Cut) Sale price¥12,800

奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 2.678ctルース

[Sale on May 26th at 10 PM] Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture 7.4mm/2.678ct Loose Stone Sale price¥15,800

奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 0.656ctルース

【Sale from 10 PM on May 23】Nara Prefecture Tenkawa Village Rainbow Garnet (Andradite Garnet) 4.8mm/0.656ct Loose Stone Sale price¥11,000

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.