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0.1 ct - 2.0 ct

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Sold out Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture 4.8mm/0.612ct Loose
Sold out カラーチェンジジルコン 0.556ctルース
Sold out Pink sapphire (with hematite) 0.271ct loose stone
Sold out [Yukinko Cut] Siberian Blue Quartz (Synthetic Quartz) 0.999ct Loose Stone
Sold out Silky sapphire from Vietnam, 1.169ct loose stone
Sold out Diamond rough (makeable) 0.353ct rough
Sold out Diamond rough (makeable) 0.279ct rough
Sold out 0.745ct loose bicolor sapphire from Windsor, Tanzania
Sold out Sri Lankan Forsterite 0.231ct Loose Stone, Japan-German
Sold out Pakistani Triplite 1.107ct Loose Stone
Sold out Congo Cobalt Calcite 7.5mm/1.791ct Loose Stone
Sold out [Sakura Shape] Oregon Sunstone from the United States, 1.224ct Loose
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 【12552511掲載】ピンクダイヤモンド 0.296ctルース
Sold out Sri Lankan moonstone 7.2mm/1.342ct loose gemstone
Sold out Sri Lankan Moonstone 1.487ct 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 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 Andalusite 0.487ct loose
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 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 Sweet Home Mine Rhodochrosite 0.677ct Loose Gemstone
Sold out 0.336 ct Tanzanian Kornerupine Loose Gemstone
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
Sold out U.S. Red Beryl 3.2mm/0.111ct Loose Stone
Sold out USA Oregon Sunstone 5.0mm/0.443ct Loose
Sold out Grandidierite from Madagascar 0.269ct loose stone
Sold out Tanzanian Sunstone 1.477ct Loose Stone
Sold out Brazilian Rhodonite in Quartz 8.6mm/1.865ct Loose Stone
Sold out Brazilian Imperial Topaz, 0.353 ct loose stone
Sold out Burmese Ice Jadeite, 0.408ct loose stone
Sold out Kenyan Tsavorite 0.347ct Loose Stone
Sold out Madagascar Sphene 4.5mm/0.509ct Loose Gemstone
Sold out Pigeon blood ruby ​​0.310ct loose
Sold out Pigeon's Blood Ruby 4.0mm/0.230ct Loose AIGS
Sold out 0.933 ct loose Brazilian aventurine beryl
Sold out Tanzanite from Tanzania 0.417ct Loose Gemstone

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.