Brazilian copper rutilated quartz 1.262ct loose stone
Sale price¥6,980
Brazilian copper rutilated quartz 1.647ct loose stone
Sale price¥6,980
Brazilian copper rutilated quartz 1.352ct loose stone
Sale price¥6,980
[Published on 12563859] Australian black opal, 1.184ct loose stone
Sale price¥45,800
[Listing 12563862] Australian Black Opal 1.392ct Loose
Sale price¥69,800
Brazilian Euclase 0.224ct Loose Stone (Bicolor Euclase)
Sale price¥18,800
Synthetic Alexandrite 0.578ct loose stone
Sale price¥9,800
Brazilian Euclase 0.213ct loose stone (bicolor Euclase)
Sale price¥12,800
Pakistani Clinohumite 1.440ct Loose Stone, Japan-Germany Exchange
Sale price¥39,800
Mexican Fire Agate 6.090ct Loose Stone
Sale price¥12,800
【9/1 22時販売】コロンビア産エメラルド 0.123ctルース
Sale price¥18,800
【9/1 22時販売】アメリカ産ペリドット 1.280ctルース
Sale price¥18,800
【9/1 22時販売】アメリカ産ペリドット 0.803ctルース
Sale price¥9,800
【9/1 22時販売】タンザニア産ツァボライト 0.366ctルース
Sale price¥13,800
【9/1 22時販売】アフガニスタン産ミントカラートルマリン 0.290ctルース
Sale price¥14,800
【9/1 22時販売】ブラジル産パライバトルマリンインクォーツ 4.3mm/0.327ctルース
Sale price¥18,800
【9/1 22時販売】ブラジル産パライバトルマリンインクォーツ 2.737ctルース
Sale price¥45,800
【9/2 22時販売】マダガスカル産パパラチアサファイア 0.497ctルース DGL鑑
Sale price¥69,800
【9/2 22時販売】ブラジル産アレキサンドライト 2.8mm/0.112ctルース 鑑別書
Sale price¥39,800
【9/2 22時販売】マダガスカル産サファリン 0.166ctルース 鑑別書
Sale price¥13,800
【9/1 22時販売】ピジョンブラッドルビー 0.350ctルース AIGS
Sale price¥49,800
【9/2 22時販売】ピジョンブラッドルビー 0.325ctルース JTL鑑別書
Sale price¥69,800
【9/2 22時販売】タンザニア産マヘンゲスピネル（ピンクスピネル） 0.366ctルース 鑑別書
Sale price¥39,800
【8/31 22時販売】パキスタン産アキシナイト（ブルーティント） 0.263ctルース
Sale price¥18,800
【9/3 22時販売】スリランカ産パープルサファイア 0.556ctルース 鑑別書
Sale price¥55,800
【9/3 22時販売】スリランカ産パープルサファイア 0.376ctルース 鑑別書
Sale price¥35,800
【9/3 22時販売】スリランカ産パープルサファイア 0.258ctルース 鑑別書
Sale price¥25,800
【9/3 22時販売】合成ルチル 3.8mm/0.278ctルース
Sale price¥8,800
【9/3 22時販売】高知県産血赤珊瑚 1.336ctルース
Sale price¥9,800
【9/3 22時販売】高知県産血赤珊瑚 1.235ctルース
Sale price¥9,800
【9/3 22時販売】YAG（イットリウムアルミニウムガーネット） 5.7mm/0.992ctルース
Sale price¥12,800
【9/3 22時販売】ブラジル産モンテブラサイト 4.0mm/0.251ctルース
Sale price¥8,800
【9/3 22時販売】トルコ産ダイアスポア 0.410ctルース
Sale price¥9,800
【9/3 22時販売】ブラジル産ロードナイトインクォーツ 0.438ctルース
Sale price¥8,800
【9/3 22時販売】ブラジル産ロードナイトインクォーツ 5.5mm/0.562ctルース
Sale price¥8,800
【9/3 22時販売】ブラジル産ロードナイトインクォーツ 6.2mm/0.600ctルース
Sale price¥9,800
【9/3 22時販売】スリランカ産ブルーサファイア 0.451ctルース 鑑別書
Sale price¥29,800
Purple zoisite from Tanzania 1.103ct loose Japanese German edition
Sale price¥98,000
Russian rough diamond (sawable) 0.101ct loose
Sale price¥22,800
[Posted as 12563267] Rough Botswana Diamond (Sawable) 0.140ct
Sale price¥44,800
![[On sale May 29th at 10 PM] "Checker x Sui" Koshu Kiseki Cut Mexican Fire Opal (usually 79,800 yen) Gacha with only 10 stones available. Win a Fire Opal (and receive one Contraluz!). [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/P8200827.jpg?v=1787563629&width=4000)
![[On sale May 29th at 10 PM] "Checker x Sui" Koshu Kiseki Cut Mexican Fire Opal (usually 79,800 yen) Gacha with only 10 stones available. Win a Fire Opal (and receive one Contraluz!). [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/P8200767.jpg?v=1787563557&width=4000)
![[On sale May 29th at 10 PM] "Checker x Sui" Koshu Kiseki Cut Mexican Fire Opal (usually 79,800 yen) Gacha with only 10 stones available. Win a Fire Opal (and receive one Contraluz!). [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/P8190691.jpg?v=1787563399&width=4000)
[Published 12562277] Brazilian Marcasite in Quartz Loose Stone 4.188ct
Sale price¥12,800
[Lottery Sale ②_202608_10] Yellow Sapphire 2.190ct Loose GIT
Sale price¥158,000
[Listed as 12563354] Jeremejevite from Namibia, 0.103ct Loose Stone
Sale price¥25,800
[Featured in 12563725] Sri Lankan Pink Sapphire 0.319ct Loose
Sale price¥29,800
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.
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.