【2/6 22時販売】アメリカ産ノンオイルレッドベリル 2.6mm/0.050ctルース GIA
Sale price¥79,800
【2/6 22時販売】コロンビア産ノンオイルエメラルド 0.510ctルース GIA
Sale price¥598,000
【2/6 22時販売】マダガスカル産ペツォッタイト 0.670ctルース 日独鑑
Sale price¥298,000
![[Available at 10 PM on January 1st] Limited to 15 Red Gemstones! Includes Pigeon Blood Ruby with Certificate of Authenticity. Discounts available for multiple purchases.](http://store.karatz.jp/cdn/shop/files/2_7efa5fdf-f106-4e59-80a1-d7253bbe0fc1.png?v=1769511248&width=2000)
![[Available at 10 PM on January 1st] [Limited to 15 stones] Japanese Polishing Artisan Gacha 💎 Koshu Precious Stone Cut Glass, Shimizu Precious Stone, Polished by Takeshi Yamamoto [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/11_b350382b-2549-42d9-8c0b-9f84bc1c72b7.png?v=1768871223&width=2000)
Colombian emerald 0.159ct loose stone
Sale price¥47,800
![[12560791] Tanzanian Sunstone 1.477ct Loose](http://store.karatz.jp/cdn/shop/files/P1306364.jpg?v=1770006977&width=4000)
[12560791] Tanzanian Sunstone 1.477ct Loose
Sale price¥15,800
Bicolor tourmaline 3.242ct rough stone from Afghanistan
Sale price¥5,980
Paraiba tourmaline from Brazil 0.129ct loose (Cu:0.6%,MnO:0.9%)
Sale price¥29,800
Amethyst 39.112ct raw stone from Zambia
Sale price¥5,980
Amethyst 29.357ct raw stone from Zambia
Sale price¥3,980
Bicolor star sapphire from Myanmar 0.920ct loose
Sale price¥39,800
Mexican fire agate 19.730ct loose
Sale price¥19,800
Strawberry quartz from Kazakhstan 1.536ct loose
Sale price¥8,800
![[12561268] Grandidierite from Madagascar 0.099ct loose stone](http://store.karatz.jp/cdn/shop/files/P1307103_70e0cab4-cd65-45a9-a846-f5bab62a6ba5.jpg?v=1770035849&width=2697)
[12561268] Grandidierite from Madagascar 0.099ct loose stone
Sale price¥18,800
![[12561267] Grandidierite from Madagascar 0.097ct loose stone](http://store.karatz.jp/cdn/shop/files/P1307069_b0e2821e-a8ef-42b8-9a9e-a6dc23621a41.jpg?v=1770035849&width=3058)
[12561267] Grandidierite from Madagascar 0.097ct loose stone
Sale price¥29,800
![[12561264] Tibetan Andesine 0.348ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1307037.jpg?v=1770008752&width=4000)
[12561264] Tibetan Andesine 0.348ct Loose Stone
Sale price¥12,800
![[12561263] 2.779ct loose Australian prehnite](http://store.karatz.jp/cdn/shop/files/P1307009.jpg?v=1770035849&width=4000)
[12561263] 2.779ct loose Australian prehnite
Sale price¥12,800
![[12561102] Ruby 0.171ct loose stone](http://store.karatz.jp/cdn/shop/files/P1306822.jpg?v=1770036000&width=4000)
[12561102] Ruby 0.171ct loose stone
Sale price¥39,800
![[12561246] Indian Parrot Chrysoberyl 0.347ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1306936.jpg?v=1770035850&width=4000)
[12561246] Indian Parrot Chrysoberyl 0.347ct Loose Stone
Sale price¥12,800
![[12561247] Indian Parrot Chrysoberyl 0.375ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1306968.jpg?v=1770035849&width=4000)
[12561247] Indian Parrot Chrysoberyl 0.375ct Loose Stone
Sale price¥15,800
![[12561098] Mexican Fire Opal 0.362ct Loose](http://store.karatz.jp/cdn/shop/files/P1306794.jpg?v=1770035999&width=4000)
[12561098] Mexican Fire Opal 0.362ct Loose
Sale price¥15,800
![[12561070] Mozambique pink spinel 0.227ct loose stone](http://store.karatz.jp/cdn/shop/files/P1306713.jpg?v=1770036000&width=4000)
[12561070] Mozambique pink spinel 0.227ct loose stone
Sale price¥12,800
![[12561086] Kunzite from Afghanistan 0.606ct loose stone](http://store.karatz.jp/cdn/shop/files/P1306747.jpg?v=1770035999&width=4000)
[12561086] Kunzite from Afghanistan 0.606ct loose stone
Sale price¥8,800
Cambodian blue zircon 1.126ct loose stone
Sale price¥18,800
【2/6 22時販売】ピンクダイヤモンド 0.296ctルース（カボションカット） 鑑別書
Sale price¥188,000
【2/6 22時販売】中国・貴州省産バライト 1.836ctルース 鑑別書
Sale price¥39,800
【2/6 22時販売】SV925中野誠氏シーブルーカルセドニー×オニキスペンダントトップ（ネックレストップ）
Sale price¥29,800
![[12555561] Afghanistan Lapis Lazuli 5.263ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1263044.jpg?v=1769861024&width=4000)
【2/2 22時販売】ブラジル産パライバトルマリン 0.065ctルース （CuO:2.0%、MnO:2.6%）
Sale price¥22,800
Colombian emerald 0.093ct loose stone
Sale price¥22,800
【2/2 22時販売】スリランカ産クリソベリルキャッツアイ 1.340ctルース
Sale price¥6,980
【2/2 22時販売】コロンビア産エメラルド 18.900ct原石（パイライト付き）
Sale price¥22,800
![[12560828] Russian Alexandrite 0.061ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_8d3c7a45-5e5d-413a-bfdd-70ca84f62bf5.png?v=1769815880&width=2250)
[12560828] Russian Alexandrite 0.061ct Loose Stone
Sale price¥45,800
【2/1 22時販売】合成アレキサンドライト 2.046ctルース
Sale price¥29,800
![[12561648] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.076ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_b4e0c1a6-8477-480e-aa59-56b8a503412a.png?v=1769815879&width=2250)
![[12561649] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.072ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_680eebb7-6cfd-4cb1-a326-e5cd3016dcdd.png?v=1769815878&width=2250)
【2/1 22時販売】スリランカ産ムーンストーン 1.578ctルース
Sale price¥12,800
【2/1 22時販売】スリランカ産ムーンストーン 1.487ctルース
Sale price¥14,800
【2/1 22時販売】コロンビア産エメラルド 0.451ctルース
Sale price¥39,800
![[12561219] Alexandrite 0.193ct loose stone](http://store.karatz.jp/cdn/shop/files/collage_86c708fd-35c3-4e7e-bfde-488d7b2ff396.png?v=1769815878&width=2250)
[12561219] Alexandrite 0.193ct loose stone
Sale price¥98,000
![[12561096] Mexican Fire Opal 0.218ct Loose](http://store.karatz.jp/cdn/shop/files/P1221603.jpg?v=1769815878&width=4000)
[12561096] Mexican Fire Opal 0.218ct Loose
Sale price¥18,800
Mexican Fire Opal 0.281ct Loose
Sale price¥15,800
![[12561232] Sri Lankan Moonstone 1.342ct Loose](http://store.karatz.jp/cdn/shop/files/P1221707.jpg?v=1769815878&width=4000)
[12561232] Sri Lankan Moonstone 1.342ct Loose
Sale price¥14,800
Pakistani Oil in Quartz 0.443ct Loose Stone
Sale price¥5,980
Pakistani oil-in quartz 0.595ct loose
Sale price¥7,980
Pakistani Oil in Quartz 0.651ct Loose Stone
Sale price¥7,980
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.