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¥10,000 - ¥30,000

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Sold out Loose 0.901ct Imperial Topaz from Brazil with certificate
Sold out Brazilian unheated pink imperial topaz (sherry pink) 0.438ct loose stone with certificate of authenticity
Sold out American benitoite 0.076ct loose
Sold out Grandidierite from Madagascar 0.228ct loose stone
Sold out Afghan Kunzite 5.6mm/0.897ct Loose
Sold out Loose Brazilian Medusa Quartz (Paraiba Quartz) 0.748ct
Sold out Brazilian Dumortierite in Quartz 1.736ct Loose
Sold out Brazilian Indicolite Tourmaline 0.342ct Loose
Sold out Kenyan Tsavorite 0.157ct Loose Gemstone
Sold out Madagascar Andesine Labradorite (commonly known as Rainbow Moonstone) 0.498ct Loose Stone
Sold out Australian black opal 0.435ct loose stone
Sold out Brazilian bicolor tourmaline 1.016ct loose stone
Sold out Sri Lankan Yellow Sapphire 0.526ct Loose
Sold out ブラジル産ティンカーベルクォーツ(ピンクファイヤークォーツ) 6.004ctルース
Sold out アメリカ産レッドベリル 0.115ctルース
Sold out ダイヤモンド 0.096ctルース(D, SI1)
Sold out ダイヤモンド 0.126ctルース(F, VS2)
Sold out Paraiba tourmaline from Brazil 0.066ct loose
Sold out [Takeshi Yamamoto] Brazilian Dendritic Quartz 25.875ct Loose
Sold out 0.245ct rough diamond (with trigon)
Sold out Tanzanian Kornerupine 0.103ct Loose Stone
Sold out Cambodian Blue Zircon (Ratanakiri Blue) 0.674ct Loose Stone
Sold out Afghanistan Blue Tourmaline 4.0mm/0.268ct Loose Stone (Lagoon Tourmaline)
Sold out Tanzanian Dragon Garnet 1.181ct Loose Stone
Sold out Zimbabwean Euclase 2.2mm/0.065ct Loose Stone
Sold out Unheated star ruby ​​from Myanmar, 0.617ct loose
Sold out Brazilian Paraiba tourmaline 0.128ct loose stone (CuO: 1.7%, MnO: 3.4%)
Sold out Brazilian Pyrite in Quartz 9.477ct Loose Stone
Sold out American benitoite 0.133ct loose
Sold out ピンクサファイア 0.881ctルース
Sold out デマントイドガーネットキャッツアイ(ホーステール認む) 0.171ctルース
Sold out デマントイドガーネットキャッツアイ(ホーステール認む) 0.222ctルース
Sold out ゴーシェナイト 1.989ctルース
Sold out トルコ産ダイアスポア 0.858ctルース
Sold out スターガーネット 14.600ctルース
Sold out マダガスカル産バイカラークリソベリル 1.590ctルース
Sold out [On Sale at 10 PM on December 7th] Rainbow Garnet (Andradite Garnet) 2.365ct Loose Stone from Tenkawa Village, Nara Prefecture
Sold out [12/7 22:00] Sri Lankan Yellow Sapphire 0.508ct Loose
Sold out Colombian emerald rough stone 11.155ct (with pyrite)
Sold out [12/6 22:00 Sale] Blue Coral (75.469ct) Loose Stone
Sold out Mali Garnet (Grossular/Andradite Garnet) 0.811ct Loose Stone from the Republic of Mali with Certificate of Authenticity
Sold out Colombian emerald 3.0mm/0.098ct loose stone
Sold out Chinese Cinnabar (Cinnabar) 1.062ct Loose Stone with Certificate of Authenticity
Sold out バイカラータンザナイト 0.581ctルース
Sold out ダイヤモンド原石(メイカブル) 0.247ct原石
Sold out [Sakura In-Cut] Tibetan Andesine 6.0mm/0.631ct 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.