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Sold out イエローダイヤモンド 4mm/0.261ctルース(LIGHT YELLOW, VS-2, VeryGood)(セミオーダーメイドセット)
Sold out 【12562008掲載】スペイン産スファレライト 1.708ctルース
Sold out [On sale July 20th at 10 PM] "Limited to 13 Stones" Diamond Gacha: Win a FANCY VIVID Yellow Diamond (with sorting report) worth 22,800 yen. One loose stone. (Multiple purchase discount available.)
Sold out ダイヤモンド 0.309ctルース(D, VVS-1, 3Excellent)
Sold out ラピスラズリ 3.394ctルース
Sold out ケニア産非加熱ゴールドシーンサファイア 0.329ctルース 鑑別書
Sold out ピンクサファイア 0.524ctルース
Sold out ピンクダイヤモンド 0.055ctルース(FANCY INTENSE PURPLISH PINK, SI2)
Sold out ブラジル産アパタイト 2.697ctルース
Sold out カラーシフトアメジスト 2.126ctルース
Sold out Tanzanite 0.579ct loose stone from Tanzania
Sold out スペイン産バイカラースファレライト 6.6mm/1.521ctルース
Sold out マダガスカル産ペツォッタイト 0.115ctルース
Sold out フローレスダイヤモンド(H&C) 0.230ctルース(D, FL, 3Excellent H&C)
Sold out Mexican Smithsonite 2.697ct loose stone
Sold out スリランカ産非加熱スターサファイア 0.618ctルース
Sold out ピンクサファイア 0.586ctルース

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.