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Sold out 18K Yellow Gold Colombian Emerald Ring
Sold out ブラジル産クォーツインクォーツ 14.298ctルース
Sold out Blue Garnite from Nigeria 0.514ct Ruth Japanese-German Edition
Sold out YAG(イットリウムアルミニウムガーネット) 1.927ctルース
Sold out オーストラリア産レインボーラティスサンストーン 0.378ctルース
Sold out オーストラリア産レインボーラティスサンストーン 0.498ctルース
Sold out オーストラリア産レインボーラティスサンストーン 0.353ctルース
Sold out エメラルド 2.498ctルース
Sold out コロンビア産エメラルド 2.018ctルース
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) 0.639ctルース
Sold out American oil-free red beryl 2.6mm/0.050ct loose GIA
Sold out 【12552511掲載】ピンクダイヤモンド 0.296ctルース
Sold out Colombian emerald rough stone 18.900ct (with pyrite)
Sold out Sri Lankan moonstone 7.2mm/1.342ct loose gemstone
Sold out Sri Lankan Moonstone 1.487ct Loose
Sold out 0.072 ct loose Bekily blue garnet (color-change garnet) from Madagascar
Sold out 0.076ct Loose Madagascar Bekily Blue Garnet (Color Change Garnet)
Sold out Russian Alexandrite 2.4mm/0.061ct Loose Stone
Sold out Synthetic Alexandrite 2.046ct Loose
Sold out Mexican Fire Opal 0.281ct Loose
Sold out 【12547478掲載】ヴァイオレットスピネル 0.776ctルース
Sold out メキシコ産ファイアオパール 0.564ctルース
Sold out コロンビア産トラピッチェエメラルド(逆トラピッチェ) 0.457ct原石
Sold out スリランカ産エンスタタイト 2.095ctルース
Sold out カンボジア産ブルージルコン(ラタナキリブルー) 0.615ctルース
Sold out Pakistani oil-in quartz 0.595ct loose
Sold out 【さくらインカット】ラベンダークォーツ(スコロライト) 2.161ctルース
Sold out Andalusite 0.487ct loose
Sold out マダガスカル産オイルインクォーツ 31.973ct原石
Sold out 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
Sold out 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
Sold out Pink tourmaline 0.341ct loose
Sold out Pink Diamond 0.139ct Loose (FANCY PURPLISH PINK, I1)
Sold out Pt950 Bicolor Sapphire Pendant Top (Necklace Top)
Sold out Tanzanite from Tanzania 4.5mm/0.390ct Loose Stone AIGS
Sold out Cornflower Blue Sapphire 0.370ct Loose AIGS
Sold out Brazilian Yellow Beryl 1.473 ct Loose Stone
Sold out 0.742ct Bicolor Kyanite Loose Stone from Nepal
Sold out Sweet Home Mine Rhodochrosite 0.677ct Loose Gemstone
Sold out 0.336 ct Tanzanian Kornerupine Loose Gemstone
Sold out 0.099ct Loose Grandidierite from Madagascar
Sold out Indian Parrot Chrysoberyl 4.2mm/0.347ct Loose Stone
Sold out Ruby 3.3mm/0.171ct Loose
Sold out Mexican Fire Opal 0.362ct Loose
Sold out Afghan Kunzite 0.606ct Loose Stone
Sold out 0.243ct Colombian Emerald Pair Loose Stones
Sold out 0.316 ct Tanzanian Bicolor Grossular Garnet Loose Stone

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.