Login

Ruth

Sort by
ブラジル産サンタマリアアクアマリン 0.299ctルース

【#202607 Akihabara Pop-up Store - Currently out for display】【12563131 Posted】Brazilian Santa Maria Aquamarine 0.299ct Loose Stone Sale price¥19,800
ブラジル産スカイブルートパーズ 0.906ctルース

[#202607 Akihabara Pop-up Store Takeout in Progress] [12562065 Posted] Brazilian Sky Blue Topaz 0.906ct Loose Stone Sale price¥12,800
マダガスカル産パパラチアサファイア 0.690ctルース 中宝鑑

[#202607AkihabaraPopUpTakeOut][12563062Published] Padparadscha Sapphire 0.690ct Loose Stone Sale price¥158,000
ブラジル産サンタマリアアクアマリン 0.264ctルース

[#202607AkihabaraPopUpOnLoan][12563137 Listed] Brazilian Santa Maria Aquamarine 0.264ct Loose Stone Sale price¥18,800
アフガニスタン産アウイナイト 0.112ctルース

[#202607 Akihabara Pop-up, Currently Off-site] [12563253 Posted] Afghan Hauyne 0.112ct Loose Stone Sale price¥28,800
オーストラリア産ブラックオパール 0.530ctルース

[#202607 Akihabara Pop-up Store - Currently out on display] [Listed under item 12562542] Australian Black Opal 0.530ct Loose Stone Sale price¥14,800
合成アレキサンドライト 1.409ctルース

[#202607 Akihabara Pop-up Store - Currently Removed] [Shinjuku Marui Annex 202605 - Currently Removed] [12559525 Listed] Synthetic Alexandrite 1.409ct Loose Stone Sale price¥39,800
ナイジェリア産マンダリンガーネット 1.347ctルース

[#202607 Akihabara Pop-up Store - Currently Removed] [12559462 Listed] Nigerian Mandarin Garnet 1.347ct Loose Gemstone Sale price¥69,800
アフガニスタン産ハックマナイト 0.110ctルース

[#202607 Akihabara Pop-up Store Takeout in Progress] [12559784 Posted] Hackmanite 0.110ct Loose Stone Sale price¥22,800
アフガニスタン産ハックマナイト 0.142ctルース

[#202607 Akihabara Pop-up Store Carry Out] [12559782 Listed] Hackmanite 0.142ct Loose Sale price¥25,800
マグネシオアキシナイト 0.154ctルース

[#202607AkihabaraPopUpTakenOut] [12560302Listed] Magnesioaxinite 0.154ct Loose Sale price¥18,800
コロンビア産ノンオイルエメラルド 1.760ctルース

【#202607 Akihabara Pop-up Store - Currently at Offsite Location】【Shinjuku Marui Annex 202605 Offsite Location】Lottery Sale 11【For Winners Only】【Published on 12559975】Colombian Non-Oil Emerald 1.760ct Loose GIA Sale price¥1,580,000
[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"

[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available" Sale price¥18,800
[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"

[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available" Sale price¥12,800
パキスタン産ルードヴィッヒアイトインペリドット 1.624ctルース

【#202607 Akihabara Pop-up Items Out for Display】【12555648 Posted】Ludwigite in Peridot from Pakistan 1.624ct Loose Sale price¥9,800
【スターインカット】メキシコ産ファイアオパール 7mm/0.678ctルース ワッペン付

[Star in cut] Mexican fire opal 7mm/0.678ct loose patch Sale price¥39,800
スライストラピッチェダイヤモンド 0.228ctルース

[#202607 Akihabara Pop-up currently out of office] [Sale starts August 19th, 10 PM JST] Slice Trapiche Diamond 0.228ct Loose Sale price¥18,800
[Listed on 12564095] Nigerian Indicolite Tourmaline 0.241ct Loose Stone

[Listed on 12564095] Nigerian Indicolite Tourmaline 0.241ct Loose Stone Sale price¥25,800
[12564094 listed] Afghanite from Afghanistan 0.018ct Loose

[12564094 listed] Afghanite from Afghanistan 0.018ct Loose Sale price¥5,980
【12563931掲載】オーストラリア産オパール 0.674ctルース

[Listed on 12563931] Australian Opal 0.674ct Loose Gemstone Sale price¥8,800
スリランカ産ブルーサファイア 0.501ctルース

【#202607 Akihabara Pop-up Store Carry-out】【12562676 Listed】Sri Lankan Blue Sapphire 0.501ct Loose Stone Sale price¥29,800
【Sakura Shape】Synthetic Sapphire 8.8mm/3.631ct Loose Stone

【Sakura Shape】Synthetic Sapphire 8.8mm/3.631ct Loose Stone Sale price¥39,800
マダガスカル産パパラチアサファイア 0.545ctルース DGL鑑

[#202607 Akihabara Pop-up Store Takeout][Shinjuku Marui Annex 202605 Takeout][12548265 Listed] Padparadscha Sapphire 0.545ct Loose Stone Sale price¥69,800
ドイツ産アウイナイト 0.134ctルース

German Hauyne 0.134ct Loose Stone Sale price¥29,800
スリランカ産ブルーサファイア 0.513ctルース

[#202607AkihabaraPopUpTakeout][12562677Listed] Sri Lankan Blue Sapphire 0.513ct Loose Sale price¥22,800
ナイジェリア産コバルトガーナイト 0.147ctルース

【#202607 Akihabara Pop-up Store - Currently Removed from Stock】【Listed on 12563127】Nigerian Cobalt Hausmannite 0.147ct Loose Sale price¥22,800
中国・四川省産シーライト 1.138ctルース

[#202607 Akihabara Pop-up Out of Office] [12562592 Listed] Scheelite from Sichuan, China, 1.138ct Loose Stone Sale price¥39,800
[Listed on 12564079] Unheated Purple-Pink Imperial Topaz from Brazil, 0.250ct Loose

[Listed on 12564079] Unheated Purple-Pink Imperial Topaz from Brazil, 0.250ct Loose Sale price¥39,800
【12564074 posted】 Lazurite from Pakistan 0.063ct loose

【12564074 posted】 Lazurite from Pakistan 0.063ct loose Sale price¥14,800
[Published 12564073] Lapis Lazuli (Lazurite) from Pakistan, 0.054ct Loose Gemstone

[Published 12564073] Lapis Lazuli (Lazurite) from Pakistan, 0.054ct Loose Gemstone Sale price¥12,800
【12564072 Published】 Lazurite from Pakistan 0.052ct Loose Gemstone

【12564072 Published】 Lazurite from Pakistan 0.052ct Loose Gemstone Sale price¥12,800
コロンビア産ノンオイルエメラルド 4.1mm/0.240ctルース GIA

[Lottery Sale 0629_08] Colombian Non-Oil Emerald 4.1mm/0.240ct Loose GIA Sale price¥458,000
【12564068掲載】ブラジル産スペサルティンガーネット 0.580ctルース

[Published as 12564068] Brazilian Spessartine Garnet 0.580ct Loose Stone Sale price¥15,800
ブラジル産ルベライト 1.100ctルース

[Published 12563933] Brazilian Rubellite 1.100ct Loose Stone Sale price¥98,000
マダガスカル産パパラチアサファイア 3.9mm/0.314ctルース 中宝鑑

[Listed on 12563962] Madagascar Padparadscha Sapphire 0.314 ct Loose Stone Sale price¥69,800
Brazilian rhodonite 1.423ct loose stone

Brazilian rhodonite 1.423ct loose stone Sale price¥29,800
カナダ産ユーディアライト 2.796ctルース

[Listed on 12562258] Eudialyte from Canada 2.796 ct loose stone Sale price¥39,800
ジンバブエ産ユークレース 0.066ctルース

【Sales start 10 PM, August 2 JST】Bicolor Euclase from Zimbabwe 0.066ct Loose Stone Sale price¥12,800
ジンバブエ産ユークレース 0.081ctルース

[On sale August 2nd, 10 PM JST] Bicolor Euclase from Zimbabwe, 0.081ct loose gemstone Sale price¥14,800
スイートホーム産ロードクロサイト 0.100ctルース 鑑別書

[On sale August 2nd at 10 PM JST] Sweet Home Mine Rhodochrosite 0.100ct Loose Gemstone with Certificate Sale price¥8,800
カンボジア産ブルージルコン 8.5mm/3.546ctルース 鑑別書

[12563993] Cambodian Blue Zircon 3.546ct Loose Sale price¥69,800
コロンビア産パイライト・雲母インエメラルド 1.192ctルース 鑑別書

[Sale starts 10 PM JST 7/31] Colombian Pyrite and Mica in Emerald Loose Stone, 1.192ct, with Certificate Sale price¥79,800
コロンビア産パイライト・雲母インエメラルド 4.8mm/0.360ctルース 鑑別書

[Sale on 8/6 at 10 PM JST] Colombian Pyrite and Mica in Emerald, 4.8mm/0.360ct, Loose Stone with Certificate Sale price¥29,800
コロンビア産トラピッチェエメラルド 0.252ctルース

[On sale August 1, 10 PM] Colombian Cosquez Trapiche Emerald 0.252ct Loose Stone with Certificate Sale price¥35,800
コロンビア産トラピッチェエメラルド 0.231ctルース

[On sale August 1, 10 PM JST] Colombian Cosquez Trapiche Emerald, 0.231 ct, Loose Stone with Certificate Sale price¥33,800
カンボジア産ブルージルコン（ラタナキリブルー） 1.847ctルース

【On Sale August 1st, 10 PM JST】Cambodian Blue Zircon (Ratanakiri Blue) 1.847ct Loose Stone with Certificate Sale price¥22,800
アフガニスタン産グリーンアウイナイト 0.062ctルース 鑑別書

[On Sale July 31, 10 PM JST] Afghanistan Green Hauyne 0.062ct Loose Gemstone with Certificate Sale price¥16,800
ナイジェリア産マンダリンガーネット 0.750ctルース

[On sale 7/30 at 10 PM] Nigerian Mandarin Garnet 0.750 ct Loose Stone with Gemstone Identification Report Sale price¥22,800

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.