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Sold out 【12561989掲載】アメリカ産オレゴンサンストーン 0.793ct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 0.673ct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 0.975ct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 0.876ct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 0.905ctルース
Sold out 【12561949掲載】南アフリカ産スギライト 0.850ctルース
Sold out 【12561929掲載】合成ルチル 0.505ctルース
Sold out タンザニア産ロードライトガーネット 0.704ctルース
Sold out Tanzanian Color Change Garnet 0.509ct Loose Stone
Sold out カンボジア産ブルージルコン(ラタナキリブルー) 0.519ctルース
Sold out 【12561176掲載】メキシコ産オパール(ファセットカット) 0.644ctルース
Sold out 【12561174掲載】メキシコ産ファイアオパール(ファセットカット) 0.517ctルース
Sold out Brazilian London Blue Topaz 0.641ct Loose
Sold out [Sakura In-Cut] Oregon Sunstone from the United States, 6.0mm/0.638ct Loose
Sold out オーストラリア産ブラックオパール 0.565ctルース
Sold out Tanzanite 0.505ct loose stone from Tanzania
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) 0.989ctルース
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 [Yukinko Cut] Siberian Blue Quartz (Synthetic Quartz) 0.999ct Loose Stone
Sold out 0.745ct loose bicolor sapphire from Windsor, Tanzania
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 【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 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 Sweet Home Mine Rhodochrosite 0.677ct Loose Gemstone
Sold out Afghan Kunzite 0.606ct Loose Stone
Sold out Madagascar Sphene 4.5mm/0.509ct Loose Gemstone
Sold out 0.933 ct loose Brazilian aventurine beryl
Sold out オレゴンサンストーン 0.513ct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 スモーキークォーツ 0.691ctルース
Sold out [Sakura In-Cut] Sapphire from Ratnapura, Sri Lanka, 6.0mm/0.839ct Loose
Sold out Anthill garnet from the USA (with forsterite) 0.578ct loose
Sold out American Anthill Garnet 5.0mm/0.641ct Loose
Sold out 0.628ct Pink Star Sapphire Loose Gemstone from Sri Lanka
coming soon Myanmar orange jade (jade) 0.531ct loose
Sold out Lazurite in quartz 0.959ct loose
Sold out Lazurite in quartz 0.877ct loose
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 Cambodian Blue Zircon (Ratanakiri Blue) 0.537ct Loose
Sold out Kunzite from Afghanistan 0.971ct loose stone
Sold out Russian Phenakite 0.615ct Loose Stone
Sold out 0.915ct Loose Ludwigite in Peridot from Pakistan
Sold out Loose 0.901ct Imperial Topaz from Brazil with certificate

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.