【1/18 22時販売】アフガニスタン産クンツァイト 5.6mm/0.897ctルース
Sale price¥12,800
【1/18 22時販売】ブラジル産メデューサクォーツ（パライバクォーツ） 0.748ctルース
Sale price¥12,800
【1/18 22時販売】タンザニア産バイカラーグロッシュラーガーネット 2.997ctルース
Sale price¥69,800
【1/18 22時販売】ブラジル産デュモルチェライトインクォーツ 1.736ctルース
Sale price¥18,800
Andesine from Mongolia 1.354ct loose
Sale price¥9,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 6.004ct loose
Sale price¥12,800
Mangano tantalite from Afghanistan 0.233ct loose
Sale price¥39,800
Sphene from Madagascar 0.498ct loose
Sale price¥6,980
American red beryl 0.143ct loose
Sale price¥15,800
American red beryl 0.115ct loose
Sale price¥12,800
American red beryl 0.208ct loose
Sale price¥22,800
American red beryl 0.141ct loose
Sale price¥14,800
Diamond 0.120ct loose (G, VS2, Excellent H&C)
Sale price¥25,800
Diamond 0.126ct loose (F, VS2, octagonal cut)
Sale price¥22,800
Cambodian Blue Zircon 0.205ct Loose
Sale price¥3,980
Cambodian Blue Zircon 0.204ct Loose
Sale price¥3,980
Cambodian Blue Zircon 0.221ct Loose
Sale price¥3,980
Synthetic moissanite (gray blue) 1.701ct loose
Sale price¥12,800
Cambodian Blue Zircon 0.609ct Loose
Sale price¥5,980
Paraiba tourmaline from Mozambique 0.270ct loose
Sale price¥18,800
Mexican Water Opal 1.790ct Loose (Contralus Opal)
Sale price¥29,800
Paraiba tourmaline from Brazil 0.066ct loose
Sale price¥18,800
Morganite from Nigeria 0.889ct loose
Sale price¥4,980
Synthetic rutile 5mm/0.553ct loose stone
Sale price¥12,800
Synthetic rutile 5.8mm/0.904ct loose stone
Sale price¥12,800
【1/14 22時販売】ジンバブエ産ユークレース 0.138ctルース
Sale price¥39,800
【1/14 22時販売】アフガニスタン産クンツァイト 23.634ctルース
Sale price¥98,000
【1/14 22時販売】ブラジル産バイカラートパーズ（バイカラーブルートパーズ） 2.884ctルース（無処理）
Sale price¥29,800
【1/14 22時販売】アメリカ産ベニトアイト 0.257ctルース
Sale price¥158,000
【1/12 22時販売】【さくらインカット】タンザニア産タンザナイト 6.0mm/0.774ctルース
Sale price¥69,800
【1/12 22時販売】ジンバブエ産バイカラーユークレース 0.654ctルース
Sale price¥158,000
【1/11 22時販売】ミャンマー産カラーチェンジジルコン 0.697ctルース
Sale price¥39,800
![[12561788] Dendritic Quartz 25.875ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1088181.jpg?v=1768172825&width=4000)
[12561788] Dendritic Quartz 25.875ct Loose Stone
Sale price¥29,800
![[12561780] Mozambique Ruby 0.481ct Loose](http://store.karatz.jp/cdn/shop/files/P1087819_20d21767-4b37-4d98-877f-e5d67479d672.jpg?v=1767939816&width=2906)
[12561780] Mozambique Ruby 0.481ct Loose
Sale price¥39,800
![[1/11 22:00 Sale] Tanzanian Violet Sapphire 0.920ct Loose](http://store.karatz.jp/cdn/shop/files/P1087805.jpg?v=1767939336&width=4000)
[1/11 22:00 Sale] Tanzanian Violet Sapphire 0.920ct Loose
Sale price¥39,800
![[On Sale at 10 PM on January 11th] Mozambique Ruby 0.544ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/P1087731_ecfd3502-7225-4f02-a1c3-b8cc7ce05d8a.jpg?v=1767939222&width=3251)
![[1/11 22:00 Sale] Brazilian Green Tourmaline 4.345ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1087723.jpg?v=1767939012&width=4000)
[1/11 22:00 Sale] Brazilian Green Tourmaline 4.345ct Loose Stone
Sale price¥69,800
![[1/11 22:00 Sale] Tanzanite from Tanzania 2.777ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1087633_8cebae4e-7fed-47ae-9d1b-584a721a6351.jpg?v=1767938707&width=2889)
[1/11 22:00 Sale] Tanzanite from Tanzania 2.777ct Loose Stone
Sale price¥98,000
Myanmar color change zircon 1.043ct loose stone
Sale price¥69,800
![[12559052] Brazilian Blue Tourmaline 0.827ct Loose](http://store.karatz.jp/cdn/shop/files/P1088505_78dc3187-5c6c-49c4-b39d-0b9af87a7a5f.jpg?v=1767992160&width=3060)
[12559052] Brazilian Blue Tourmaline 0.827ct Loose
Sale price¥19,800
![[12559002] Cambodian Blue Zircon (Ratanakiri Blue) 0.674ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1098663.jpg?v=1767992682&width=4000)
[12559002] Cambodian Blue Zircon (Ratanakiri Blue) 0.674ct Loose Stone
Sale price¥15,800
![[1/11 22:00 Sale] Brazilian Dumortierite in Quartz 0.382ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1088465_f43d3e40-29aa-4624-a2a1-c6d1634e73e3.jpg?v=1767942646&width=3570)
![[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)
[1/10 22:00 Sale] Burmese Unheated Ruby 0.227ct Loose Stone, Nikko Kan
Sale price¥45,800
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.