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Width: 2.1 - 3.0mm

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coming soon Canadian Eudialite 2.5mm/0.051ct Loose Stone with Certificate of Authenticity
Sold out Canadian Eudialyte 2.5mm/0.047ct Loose Stone with Certification
Sold out Canada Eudialyte 2.5mm/0.059ct Loose Stone with Certificate of Authenticity
Sold out 【12558711掲載】ドゥニライト 0.132ctルース
Sold out Diamond 2.9mm/0.094ct Loose (E, VVS2, VeryGood)
Sold out 【32501846掲載】ダイヤモンド 0.290ctルース(J, VS1)
Sold out 0.084ct loose green diamond (FANCY GRAY GREEN, I-1)
Sold out Gray Diamond 0.079ct Loose (FANCY DARK GRAY, I-1)
Sold out Madagascar Grandidierite 0.109ct loose stone
Sold out マダガスカル産グランディディエライト 0.108ctルース
Sold out Kenyan Tsavorite 0.164ct Loose Stone
Sold out ピンクサファリン 0.178ctルース
Sold out パキスタン産ヴィータニエミアイト 0.184ctルース
Sold out Brazilian Alexandrite 3.0mm/0.121ct Loose
Sold out Lazulite (0.077ct) from Pakistan, loose
Sold out German Hauyne 2.2mm/0.035ct Loose Stone
Sold out 0.092ct loose stone with iolite and phlogopite (phlogopite)
Sold out Diamond rough (makeable) 0.279ct rough
Sold out American oil-free red beryl 2.6mm/0.050ct loose GIA
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 Pink Diamond 0.139ct Loose (FANCY PURPLISH PINK, I1)
Sold out 0.099ct Loose Grandidierite from Madagascar
Sold out 0.243ct Colombian Emerald Pair Loose Stones
Sold out U.S. Red Beryl 2.2mm/0.047ct Loose
Sold out 0.278 ct loose Nigerian cobalt gahnite with Japanese and German appraisals
Sold out Ruby 0.258ct loose
Sold out 0.168ct Unheated Silky Pink Sapphire from Vietnam
Sold out Madagascar Bekily Blue Garnet (Color Change Garnet) 0.132ct Loose Stone
Sold out Kenyan Tsavorite 0.157ct Loose Gemstone
Sold out 0.245ct rough diamond (with trigon)
Sold out Tanzanian Kornerupine 0.103ct Loose Stone
Sold out Grandidierite from Madagascar 0.167ct loose stone
Sold out Zimbabwean Euclase 2.2mm/0.065ct Loose Stone
Sold out Brazilian Paraiba tourmaline 0.128ct loose stone (CuO: 1.7%, MnO: 3.4%)
Sold out German Auchenite 0.083ct loose stone
Sold out Tanzanian Kornerupine 2.7mm/0.075ct Loose Stone
Sold out Colombian emerald 3.0mm/0.098ct loose stone
Sold out カシミール産非加熱サファイア 0.260ctルース
Sold out カシミール産非加熱サファイア 0.210ctルース
Sold out アメリカ産ノンオイルレッドベリル 2.5mm/0.050ctルース GIA
Sold out ロシア産デマントイドガーネット(ホーステール認む) 0.070ctルース
Sold out ナイジェリア産コバルトガーナイト 0.299ctルース 鑑別書
Sold out American Red Beryl 2.2mm/0.049ct Loose Stone
Sold out アメリカ産レッドベリル 0.045ctルース
Sold out アフガニスタン産ハックマナイト 0.105ctルース
Sold out ブルーダイヤモンド 2.3mm/0.056ctルース(LIGHT GREEN BLUE, SI-1)

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.