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Platinum Rutilated Quartz (Brookier Lepidocrocite in Quartz) 9.457ct Loose Sale price¥25,800

Platinum Rutilated Quartz (Brookier Lepidocrocite in Quartz) 6.439ct Loose Sale price¥16,800

American red beryl 0.138ct loose Sale price¥34,800

American red beryl 0.207ct loose Sale price¥49,800

American red beryl 0.116ct loose Sale price¥29,800

American red beryl 0.184ct loose Sale price¥46,800

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） 0.960ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 0.960ct loose Sale price¥8,800

【12548939掲載】マダガスカル産ラズライトインクォーツ 1.600ctルース

Lazurite in quartz from Madagascar 7.5mm/1.600ct loose Sale price¥18,800

【12548938掲載】マダガスカル産ラズライトインクォーツ 1.090ctルース

Lazurite in quartz from Madagascar 1.090ct loose Sale price¥14,800

【12548937掲載】マダガスカル産ラズライトインクォーツ 0.990ctルース

Lazurite in quartz from Madagascar 0.990ct loose Sale price¥14,800

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） 1.396ctルース

Tanzanian Andesine Labradorite (also known as Rainbow Moonstone) 1.396ct loose stone Sale price¥14,800

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） 1.026ctルース

Tanzanian Andesine Labradorite (also known as Rainbow Moonstone) 1.026ct loose stone Sale price¥15,800

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） 0.782ctルース

Tanzanian Andesine Labradorite (also known as Rainbow Moonstone) 0.782ct loose stone Sale price¥8,800

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） 0.928ctルース

Tanzanian Andesine Labradorite (also known as Rainbow Moonstone) 0.928ct loose stone Sale price¥15,800

Rubellite 0.549ct loose Sale price¥19,800

Labradorite (Spectrolite) from Finland 6.335ct loose Sale price¥5,980

Labradorite (Spectrolite) from Finland 5.261ct loose Sale price¥6,980

Labradorite (Spectrolite) from Finland 4.747ct loose Sale price¥6,980

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） 0.915ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 0.915ct loose Sale price¥8,800

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） 0.856ctルース

Rainbow garnet (andradite garnet) 0.856ct loose from Tenkawa Village, Nara Prefecture Sale price¥8,800

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） 1.119ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 1.119ct loose Sale price¥11,800

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） 1.533ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 1.533ct loose Sale price¥8,800

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） 1.447ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 1.447ct loose Sale price¥14,800

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） 0.922ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 0.922ct loose Sale price¥9,800

Copper rutilated quartz 1.135ct loose Sale price¥5,980

Copper rutilated quartz 1.165ct loose Sale price¥5,980

Copper rutilated quartz 1.747ct loose Sale price¥6,980

Rubellite 7.068ct loose Japanese-German book Sale price¥498,000

Lazurite in quartz 0.959ct loose Sale price¥29,800

Lazurite in quartz 0.877ct loose Sale price¥25,800

Lazurite in quartz 0.353ct loose Sale price¥9,800

Rhodochrosite 0.331ct loose from Detroit City Sale price¥29,800

Brazilian Lazurite (Celestite) 0.281ct Ruth Japanese-German Edition Sale price¥118,000

Rhodochrosite 4.000ct loose from Detroit City Sale price¥498,000

American red beryl 0.143ct loose Sale price¥17,800

American red beryl 0.115ct loose Sale price¥13,800

American red beryl 0.208ct loose Sale price¥25,800

American red beryl 0.141ct loose Sale price¥16,800

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） 1.464ctルース

Andesine Labradorite from Madagascar (commonly known as Rainbow Moonstone) 1.464ct loose Sale price¥14,800

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） 0.878ctルース

Andesine Labradorite from Madagascar (commonly known as Rainbow Moonstone) 0.878ct loose 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） 0.666ctルース

Andesine Labradorite from Madagascar (commonly known as Rainbow Moonstone) 0.666ct loose Sale price¥6,580

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） 0.570ctルース

Andesine Labradorite (commonly known as Rainbow Moonstone) from Madagascar 0.570ct loose Sale price¥5,980

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） 2.623ctルース

Rainbow garnet (andradite garnet) 2.623ct loose from Tenkawa Village, Nara Prefecture Sale price¥3,980

[Panda cut] Rose quartz 5.081ct loose Sale price¥8,800

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Let's try polishing gemstones with the "Do-it-yourself gemstone polishing kit" (for intermediate users: Andesine Labradorite from Madagascar)

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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：ラブラドライト）

Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for intermediate users: labradorite)

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1 stone loose rhodochrosite from Hokkaido (6×4, oval)

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1 stone of Hokkaido rhodochrosite (5 x 3 mm, pear-shaped cut)《Discount available for multiple purchases》

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.