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Sold out 《Limited to 8 stones》 [Mr. Sanjay] Hackmanite or Sodalite 1 stone loose (maximum 3.63 ct)《Multiple purchase discount available》

《Limited to 8 stones》 [Mr. Sanjay] Hackmanite or Sodalite 1 stone loose (maximum 3.63 ct)《Multiple purchase discount available》
Sold out Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Light Pink) 1 stone loose (multiple purchase discount available)

Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Light Pink) 1 stone loose (multiple purchase discount available)
Sold out Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Intense Pink) 1 stone loose (multiple purchase discount available)

Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Intense Pink) 1 stone loose (multiple purchase discount available)
Sold out Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Vivid Pink) 1 stone loose (multiple purchase discount available)

Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Vivid Pink) 1 stone loose (multiple purchase discount available)
Sold out スリランカ産イエローサファイア 0.711ctルース

Yellow sapphire from Sri Lanka 0.711ct loose
Sold out スリランカ産イエローサファイア 0.678ctルース

Sri Lankan Yellow Sapphire 0.678ct Loose
Sold out スリランカ産イエローサファイア 0.705ctルース

Yellow sapphire from Sri Lanka 0.705ct loose
Sold out スリランカ産イエローサファイア 0.941ctルース

Sri Lankan Yellow Sapphire 0.941ct Loose
Sold out スリランカ産イエローサファイア 0.626ctルース

Yellow sapphire from Sri Lanka 0.626ct loose
Sold out スリランカ産イエローサファイア 0.645ctルース

Yellow sapphire from Sri Lanka 0.645ct loose
Sold out Yellow sapphire from Sri Lanka 0.736ct loose

Yellow sapphire from Sri Lanka 0.736ct loose
Sold out フィンランド産ラブラドライト（スペクトロライト） 6.313ctルース

Labradorite (Spectrolite) from Finland 6.313ct loose
Sold out Bekily Blue Garnet from Madagascar (color change garnet) 0.169ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 0.169ct loose
Sold out サンストーン 0.881ctルース

Illusion Sunstone 0.881ct Loose
Sold out カラーチェンジサファイア 0.526ctルース

Color change sapphire 0.526ct loose

Sold out カザフスタン産ストロベリークォーツ 0.642ctルース

Strawberry quartz from Kazakhstan 0.642ct loose
Sold out タンザニア産コーネルピン 0.170ctルース

Tanzanian Kornerupine 0.170ct loose stone
Sold out 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） 0.935ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 0.935ct loose
coming soon 【5/31 22時販売】ミャンマー産マスグラバイト 0.351ctルース 日独

【5/31 22時販売】ミャンマー産マスグラバイト 0.351ctルース 日独 Sale price¥128,000
coming soon インターナリーフローレスダイヤモンド 0.320ctルース(G, IF, 3Excellent)

【5/31 22時販売】インターナリーフローレスダイヤモンド 4.4mm/0.320ctルース(G, IF, 3Excellent) GIA Sale price¥89,800
coming soon Lottery Sale 12 [Exclusive to Winners] [Listing 12562853] Bolivian Phosphophyllite 0.448ct Loose Stone with Certification

Lottery Sale 12 [Exclusive to Winners] [Listing 12562853] Bolivian Phosphophyllite 0.448ct Loose Stone with Certification Sale price¥358,000

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.