Today's new arrivals

Gemstone Identification Guidebook (Not available for purchase separately; gift for purchases of 3,000 yen or more) Sale price¥0

スリランカ宝石買い付けセミナー参加チケット（ポップアップ限定・新刊書籍付き） Sale price¥5,000

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【3/20 22時販売】《数量限定・ポップアップ開催記念》お楽しみガチャ💎 レッドサファイア鑑別書付き・カメレオンダイヤモンド・インペリアルトパーズ・アレキサンドライト・サンジェ氏研磨などの宝石が当たる《複数購入割引有》　　　 Sale price¥4,980

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{June Campaign Limited Edition} Rare Stone Gacha💎 Padparadscha Sapphire 0.3ct+ with Certificate, Benitoite, Red Beryl, etc. Loose Stones for 1 Stone {Multiple Purchase Discounts Available} Sale price¥7,980

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[12562116] Almandine Garnet 0.961ct Loose Stone Sale price¥9,800

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【12562049掲載】オーストラリア産レインボーラティスサンストーン 0.373ctルース

[12562049] Australian Rainbow Lattice Sunstone 0.373ct Loose Sale price¥7,980

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【12562090掲載】ブラジル産デュモルチェライトインクォーツ 0.813ctルース

[12562090] Brazilian Dumortierite in Quartz 0.813ct Loose Stone Sale price¥9,800

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[12562532] Australian black opal 0.605ct loose Sale price¥22,800

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[12562537] Australian black opal 0.744ct loose Sale price¥18,800

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[12562535] Australian black opal 1.311ct loose Sale price¥18,800

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[12561922] Synthetic Cobalt Spinel 1.342ct Loose Stone Sale price¥15,800

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[12562066] Brazilian Sky Blue Topaz 0.834ct Loose Sale price¥8,800

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[12562058] Canadian Eudialite 0.047ct Loose Stone Sale price¥15,800

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[12561969] Brazilian Dumortierite in Quartz 0.463ct Loose Stone Sale price¥4,980

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Tanzanite 0.328ct loose stone Sale price¥8,800

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Bicolor Zoisite 0.229ct loose stone Sale price¥6,980

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Bicolor Zoisite 0.273ct loose stone Sale price¥7,980

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Bicolor tourmaline 0.548ct loose Sale price¥6,980

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Green tourmaline 0.637ct loose Sale price¥8,800

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Lepidocrocite in Quartz 0.382ct Loose Sale price¥6,980

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Bicolor tourmaline 0.423ct loose Sale price¥12,800

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Bicolor tourmaline 0.552ct loose Sale price¥12,800

[12562079] Oregon Sunstone from the United States, 1.494ct Loose Sale price¥35,800

Brazilian alexandrite 0.070ct loose Sale price¥39,800

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[12562111] Color-shifting amethyst 1.085ct loose stone

[12562538] Australian black opal 0.548ct loose Sale price¥18,800

[12562540] Australian black opal 0.336ct loose Sale price¥19,800

[12562526] Australian black opal 0.768ct loose Sale price¥25,800

[12562528] 1.539ct loose Australian black opal Sale price¥15,800

【3/19 22時販売】コロンビア産ノンオイルエメラルド 0.120ctルース GIA Sale price¥158,000

Brazilian Medusa Quartz (Paraiba Quartz) 1.405ct Loose Stone Sale price¥8,800

Brazilian Medusa Quartz (Paraiba Quartz) 1.241ct Loose Stone Sale price¥6,980

Brazilian Medusa Quartz (Paraiba Quartz) 1.529ct Loose Stone Sale price¥6,980

Lepidocrocite in Quartz 0.241ct Loose Stone Sale price¥6,980

Lepidocrocite in Quartz 0.768ct Loose Sale price¥7,980

Bicolor Zoisite 0.302ct loose stone Sale price¥8,800

Pink spinel 0.365ct loose stone Sale price¥9,800

Sky blue topaz 0.563ct loose stone Sale price¥5,980

Sky blue topaz 0.428ct loose stone Sale price¥5,980

Bicolor Zoisite 0.203ct loose stone Sale price¥8,800

Tanzanite 0.349ct loose Sale price¥8,800

Bicolor Zoisite 0.402ct loose stone Sale price¥8,800

[12562529] Australian Black Opal 0.940ct Loose Sale price¥18,800

[12562077] Oregon Sunstone from the United States, 1.356ct Loose Sale price¥35,800

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[12562533] Australian black opal 0.427ct loose

インド産アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.468ctルース

Indian Andesine Labradorite (also known as Rainbow Moonstone) 0.468ct loose stone Sale price¥12,800

[12562525] Australian Black Opal 0.956ct Loose Sale price¥39,800

Medusa Quartz (Paraiba Quartz) 1.666ct loose Sale price¥18,800

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.

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.