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Sold out Tanzanian Color Change Garnet 0.509ct Loose Stone
Sold out Synthetic rutile 3.9mm/0.329ct loose stone
Sold out 【12561168掲載】メキシコ産ウォーターオパール(ファセットカット) 0.349ctルース
Sold out 【12561129掲載】スリランカ産イエローサファイア 0.291ctルース
Sold out Brazilian London Blue Topaz 0.641ct Loose
Sold out Myanmar Red Spinel 0.196ct 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) 1.458ctルース
Sold out 0.092ct loose stone with iolite and phlogopite (phlogopite)
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 0.072 ct loose Bekily blue garnet (color-change garnet) from Madagascar
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 Andalusite 0.487ct loose
Sold out Afghan Kunzite 0.606ct Loose Stone
Sold out Burmese Ice Jadeite, 0.408ct loose stone
Sold out Madagascar Sphene 4.5mm/0.509ct Loose Gemstone
Sold out 0.933 ct loose Brazilian aventurine beryl
Sold out Afghanistan Lapis Lazuli 11mm/5.263ct Loose Stone
Sold out Bicolor tourmaline 3.242ct rough stone from Afghanistan
Sold out ザンビア産アメジスト 39.112ct原石
Sold out タンザニア産コーネルピン 0.173ctルース
Sold out ブラジル産デュモルチェライトインクォーツ 0.852ctルース
Sold out カザフスタン産ストロベリークォーツ 1.536ct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) 1.447ctルース
Sold out トリフィライトインクォーツ 13.378ctルース
Sold out Golden Hill Turquoise from Kazakhstan, 2.524ct Loose Stone
Sold out Golden Hill Turquoise from Kazakhstan, 2.882ct loose stone
Sold out Golden Hill Turquoise from Kazakhstan, 2.235ct loose stone
Sold out Unmounted American Anthill Garnet, 4.0mm/0.269ct
Sold out USA Ant Hill Garnet 4.0mm/0.277ct Loose Stone
Sold out インド産カバンサイト 2.163ctルース
Sold out タンザニア産レピドライト 1.035ctルース
Sold out Mali Garnet (Grossular/Andradite Garnet) from Mali 0.359ct Loose Stone
Sold out Hessonite Garnet from Sri Lanka 0.681ct Loose
Sold out Hessonite Garnet from Sri Lanka 0.530ct Loose Gemstone
Sold out Tanzanian Almandine Garnet 0.586ct Loose
Sold out 0.168ct Unheated Silky Pink Sapphire from Vietnam
Sold out Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.150ct Loose
Sold out Madagascar Bekily Blue Garnet (Color Change Garnet) 0.132ct Loose Stone
Sold out パキスタン産オイルインクォーツ 0.325ctルース
Sold out パキスタン産オイルインクォーツ 0.361ctルース
Sold out 【12546496掲載】ベトナム産非加熱シルキーピンクサファイア 0.161ctルース
Sold out 南アフリカ産ダイヤモンド(メイカブル) 0.193ct原石
Sold out 0.321ct Blue Sapphire Loose Gemstone from Sri Lanka
Sold out 1.091ct loose Australian black opal

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.