【9/5 22時販売】ブラジル産ルベライト 2.115ctルース 日独鑑
Sale price¥79,800
【9/5 22時販売】ブラジル産レインボーアクアマリン（イリデッセンスアクアマリン） 2.718ctルース（ハートシェイプ）
Sale price¥18,800
Montebrasite 4.1mm 2 stone pair loose (green)
Sale price¥6,980
[Posted 12529980] Paraiba tourmaline from Brazil 1.649ct loose
Sale price¥18,800
Brazilian Paraiba tourmaline in quartz 4.070ct loose
Sale price¥12,800
Particolor tourmaline 24.147ct loose
Sale price¥49,800
Yellow tourmaline 0.280ct loose
Sale price¥3,980
[Dandelion Cut] London Blue Topaz 6.750ct Loose with Patch
Sale price¥45,800
[Dandelion Cut] London Blue Topaz 6.570ct Loose with Patch
Sale price¥55,800
![[Dandelion cut] Morganite 7mm/1.02ct loose with patch](http://store.karatz.jp/cdn/shop/files/102ct-439651.jpg?v=1756849922&width=1200)
[Dandelion cut] Morganite 7mm/1.02ct loose with patch
Sale price¥49,800
![[On sale at 10 PM on September 5th] [Limited to 3 stones] Brazilian Elestial Amethyst (1 loose stone, 3.5-3.9mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_a4907829-a1ef-40d2-ae34-572edef35c78.png?v=1756866168&width=2000)
![[Available at 10 PM on August 31st] [Limited to 9 stones] Brazilian Rainbow Aquamarine Loose Stone (Average 1.0 carat, Pear Sheep Cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_a4d9bef3-5745-4730-8adf-5950e9068581.png?v=1756459860&width=2000)
![[12560287] 1.058ct Brazilian Elestial Amethyst Loose Stone](http://store.karatz.jp/cdn/shop/files/P8295743_6485a6b2-2336-4185-8be4-a9234de4d887.jpg?v=1757207087&width=4000)
[12560287] 1.058ct Brazilian Elestial Amethyst Loose Stone
Sale price¥9,800
[12560281] Brazilian Elestial Amethyst 0.482ct Loose Stone
Sale price¥4,980
[12560280] 2.101ct Elestial Amethyst Loose Stone from Brazil
Sale price¥14,800
[12560275] 3.093ct Elestial Amethyst Loose Stone from Brazil
Sale price¥19,800
[12560321] Brazilian pink tourmaline 0.234ct loose stone
Sale price¥8,800
[12560313] Brazilian Green Tourmaline 0.755ct Loose
Sale price¥18,800
[12560312] Brazilian Green Tourmaline 0.374ct Loose
Sale price¥9,800
[12560273] 2.353ct Elestial Amethyst Loose Stone from Brazil
Sale price¥15,800
![[12560272] Brazilian Elestial Amethyst 1.461ct Loose](http://store.karatz.jp/cdn/shop/files/P8266147_040f0480-e090-4c6b-9dd8-3391793cd630.jpg?v=1757116989&width=4000)
[12560272] Brazilian Elestial Amethyst 1.461ct Loose
Sale price¥9,800
[12557436] Brazilian Morganite 1.266ct Loose Stone
Sale price¥29,800
[12557415] Brazilian Bicolor Imperial Topaz 0.981ct Loose
Sale price¥79,800
[12556620] Brazilian Emerald 0.945ct Loose
Sale price¥25,800
![[12556599] Alexandrite 0.326ct loose stone](http://store.karatz.jp/cdn/shop/files/collage_504ffdc6-e750-439e-9e59-3e8f60a5bcee.png?v=1757117848&width=2000)
[12556599] Alexandrite 0.326ct loose stone
Sale price¥79,800
Dumortierite in quartz 4.110ct loose
Sale price¥18,800
Paraiba tourmaline from Brazil 0.230ct loose (CuO:0.8%, MnO:3.3%)
Sale price¥29,800
Aquamarine 68.040ct loose
Sale price¥39,800
Bicolor tourmaline 1.050ct loose
Sale price¥8,800
Bicolor tourmaline 0.780ct loose
Sale price¥9,800
Brazilian Pink Imperial Topaz 2.794ct Loose Japanese-German Edition
Sale price¥128,000
Pink tourmaline cat's eye 3.800ct loose
Sale price¥8,800
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.