Mexican Hyalite Opal 5.0mm/0.449ct Loose Stone
Sale price¥9,800
Burmese Red Spinel 0.177ct Loose
Sale price¥9,800
Brazilian Euclase (Bicolor Euclase) 0.302ct Loose Stone
Sale price¥49,800
Brazilian Euclase (Bicolor Euclase) 0.199ct Loose Stone
Sale price¥45,800
Brazilian Euclase 0.251ct Loose Stone (Bicolor Euclase)
Sale price¥29,800
Brazilian Euclase 0.116ct loose stone (bicolor Euclase)
Sale price¥25,800
Brazilian Euclase 0.492ct Loose Stone (Bicolor Euclase)
Sale price¥29,800
Brazilian Euclase 0.222ct Loose Stone
Sale price¥18,800
Bicolor sapphire 0.143ct loose
Sale price¥8,800
Bicolor sapphire 0.481ct loose
Sale price¥25,800
Synthetic Alexandrite 0.330ct loose stone
Sale price¥9,800
Synthetic Alexandrite 0.282ct loose stone
Sale price¥9,800
Russian Diopside 0.402ct Loose Stone
Sale price¥8,800
Oregon Sunstone from the United States 5.0mm/0.460ct loose stone
Sale price¥19,800
Oregon Sunstone 0.462ct loose
Sale price¥6,980
【2/14 22時販売】オーストラリア産ブラックオパール 0.221ctルース
Sale price¥22,800
【2/15 22時販売】ジンバブエ産ジンバブエ産バイカラーユークレース 0.109ctルース
Sale price¥59,800
【2/14 22時販売】タンザニア産タンザナイト 0.331ctルース
Sale price¥14,800
【抽選販売0216_09】《クイズ出題》ピンクサファイア（ヘマタイト入り） 0.271ctルース
Sale price¥18,800
【抽選販売0216_10】スリランカ産フォルステライト 0.231ctルース 日独
Sale price¥19,800
![[12561426] Cornflower Blue Sapphire 0.370ct Loose](http://store.karatz.jp/cdn/shop/files/P1294950_089e894e-1016-4f1a-b1a3-57c0f7970a12.jpg?v=1770242008&width=2860)
![[On Sale at 10 PM on January 31st] American Anthill Garnet 4.0mm/0.277ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1221018.jpg?v=1769772695&width=4000)
![[Lottery Sale 0201_11] Zimbabwe Green Diamond Rough (Sawable) 0.402ct Rough with Trigon](http://store.karatz.jp/cdn/shop/files/P1210080.jpg?v=1769910470&width=4000)
![[Lottery Sale 0201_12] Zimbabwe Green Diamond Rough (Sawable) 0.428ct Rough with Trigon](http://store.karatz.jp/cdn/shop/files/P1210010.jpg?v=1769739504&width=4000)
![[On Sale at 10 PM on January 23rd] Unheated Silky Pink Sapphire from Vietnam, 0.218ct Loose](http://store.karatz.jp/cdn/shop/files/P1011914_3f087b35-cabb-4478-bae2-823069241f9d.jpg?v=1768999330&width=2701)
![[Lottery Sale 0201_14] Colombian Oil-Free Emerald 0.190ct Loose GIA](http://store.karatz.jp/cdn/shop/files/P1201225.jpg?v=1769910495&width=4000)
![[Lottery Sale 0201_13] Colombian Oil-Free Emerald 0.170ct Loose GIA](http://store.karatz.jp/cdn/shop/files/P1201256.jpg?v=1769910495&width=4000)
[Lottery Sale 0201_13] Colombian Oil-Free Emerald 0.170ct Loose GIA
Sale price¥278,000
![[On Sale at 10 PM on January 21st] Brazilian Indigolite Tourmaline 0.342ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1159781_27dc43e2-c0ac-48bc-be41-5e1933420908.jpg?v=1768826939&width=2728)
![[On sale at 10pm on January 31st] Kenyan Tsavorite 0.157ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1231836_4356f524-6a3e-4662-baac-6b4208611ec8.jpg?v=1769775144&width=2397)
![[On Sale at 10 PM on January 31st] Sri Lankan Blue Sapphire 0.321ct Loose](http://store.karatz.jp/cdn/shop/files/P1232967.jpg?v=1769775003&width=4000)
![[On Sale at 10 PM on January 17th] Australian Black Opal 0.435ct Loose](http://store.karatz.jp/cdn/shop/files/P1150299.jpg?v=1768479637&width=4000)
![[On Sale at 10 PM on January 12th] 0.245ct Rough Diamond (with Trigon)](http://store.karatz.jp/cdn/shop/files/P1087915.jpg?v=1768086183&width=4000)
![[On Sale at 10 PM on January 12th] Mozambique Ruby 0.481ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/P1087819_20d21767-4b37-4d98-877f-e5d67479d672.jpg?v=1767939816&width=2906)
![[On Sale at 10 PM on 1/11] Tanzanian Kornerupine 0.103ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1098704_eb371033-dd3e-449c-8353-c04a2c01ea3f.jpg?v=1768051701&width=3007)
![[On Sale at 10 PM on January 11th] Afghanistan Blue Tourmaline 4.0mm/0.268ct Loose Stone (Lagoon Tourmaline)](http://store.karatz.jp/cdn/shop/files/P1098685_5eaaf8df-bafa-40a6-81ba-305731a01732.jpg?v=1767992828&width=2972)
![[1/10 22:00 Sale] Burmese Unheated Ruby 0.227ct Loose Stone, Nikko Kan](http://store.karatz.jp/cdn/shop/files/P8214669_561f61d9-71f4-4776-872c-afa2348b90fa.jpg?v=1767739117&width=2658)
![[On Sale at 10 PM on January 19th] Madagascar Sapphire 4.6mm/0.472ct Loose](http://store.karatz.jp/cdn/shop/files/PC093439.jpg?v=1768701105&width=4000)
![[1/4 22:00 Sale] American Peridot 0.334ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052248.jpg?v=1767484195&width=4000)
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.