Skip to content

All

Sort by

Sold out Pigeon blood ruby ​​0.310ct loose
Sold out Madagascar Sphene 4.5mm/0.509ct Loose Gemstone
Sold out Kenyan Tsavorite 0.347ct Loose Stone
Sold out Burmese Ice Jadeite, 0.408ct loose stone
Sold out Brazilian Imperial Topaz, 0.353 ct loose stone
Sold out Brazilian Rhodonite in Quartz 8.6mm/1.865ct Loose Stone
Sold out Grandidierite from Madagascar 0.269ct loose stone
Sold out USA Oregon Sunstone 5.0mm/0.443ct Loose
Sold out U.S. Red Beryl 2.2mm/0.047ct Loose
Sold out 0.316 ct Tanzanian Bicolor Grossular Garnet Loose Stone
Sold out 0.243ct Colombian Emerald Pair Loose Stones
Sold out Afghan Kunzite 0.606ct Loose Stone
Sold out Ruby 3.3mm/0.171ct Loose
Sold out 0.099ct Loose Grandidierite from Madagascar
Sold out 0.336 ct Tanzanian Kornerupine Loose Gemstone
Sold out Sweet Home Mine Rhodochrosite 0.677ct Loose Gemstone
Sold out Cornflower Blue Sapphire 0.370ct Loose AIGS
Sold out Tanzanite from Tanzania 4.5mm/0.390ct Loose Stone AIGS
Sold out Pt950 Bicolor Sapphire Pendant Top (Necklace Top)
Sold out Pink Diamond 0.139ct Loose (FANCY PURPLISH PINK, I1)
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 Andalusite 0.487ct loose
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 スリランカ産エンスタタイト 2.095ct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 Mexican Fire Opal 0.281ct Loose
Sold out Synthetic Alexandrite 2.046ct Loose
Sold out Russian Alexandrite 2.4mm/0.061ct Loose Stone
Sold out 0.072 ct loose Bekily blue garnet (color-change garnet) from Madagascar
Sold out Sri Lankan moonstone 7.2mm/1.342ct loose gemstone
Sold out Colombian emerald rough stone 18.900ct (with pyrite)
Sold out 【12552511掲載】ピンクダイヤモンド 0.296ct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 【22602044掲載】SV925 シーブルーカルセドニー ペンダントトップ(ネックレストップ)
Sold out Oregon Sunstone from the United States, 8.338ct loose stone
Sold out Australian boulder opal 15.004ct loose stone
Sold out Pakistani Triplite 1.107ct Loose Stone
Sold out Sri Lankan Cobalt Spinel (Blue Spinel) 3.202ct Loose Stone (Needle-like Inclusions) Japan-German Rare Stone
Sold out Sri Lankan Forsterite 0.231ct Loose Stone, Japan-German
Sold out 0.745ct loose bicolor sapphire from Windsor, Tanzania
Sold out Colombian emerald 10.940ct rough stone
Sold out Afghanistan Bicolor Beryl 9.100ct Loose Stone
Sold out Silky sapphire from Vietnam, 1.169ct loose stone
Sold out 【Yukinko Cut】 Siberian Blue Quartz (Synthetic Quartz) 2.503ct Loose
Sold out [Yukinko Cut] Siberian Blue Quartz (Synthetic Quartz) 2.420ct Loose Stone
Sold out [Yukinko Cut] Siberian Blue Quartz (Synthetic Quartz) 0.999ct 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.