Mexican bicolor Danburite 1.932ct loose stone by Nikkei
Sale price¥29,800
Australian rainbow lattice sunstone 0.378ct loose
Sale price¥4,980
Australian rainbow lattice sunstone 0.498ct loose
Sale price¥2,980
Australian rainbow lattice sunstone 0.449ct loose
Sale price¥4,980
Australian rainbow lattice sunstone 0.354ct loose
Sale price¥4,980
![[On sale March 28 at 10 PM] Mozambique Almandine Garnet 1.363ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P3133034_8ab44c6a-e350-40f3-825b-ea020a17fae6.jpg?v=1774653846&width=2877)
![[On Sale March 30th at 10 PM] Indian Black Moonstone 0.609ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/P3273147_a9efb5dc-991a-4793-bd01-f3f3f7689868.jpg?v=1774742181&width=3396)
[On Sale March 30, 10 PM JST] Indian Black Moonstone 1.871ct Loose Stone
Sale price¥12,800
![[On Sale 3/11 at 10pm] Brazilian Dumortierite in Quartz 0.699ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P3038334_d2b57737-169a-4c58-88c7-addcb3b873d5.jpg?v=1773008980&width=3214)
![[On Sale 3/11 at 10pm] Brazilian Dumortierite in Quartz 0.910ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P3038268_012d16cc-1137-4388-ab2c-0b0235733ce9.jpg?v=1773009091&width=4000)
![[On Sale at 10 PM on March 13th] Brazilian Dumortierite in Quartz 0.642ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P3038224_7e5d15ee-8592-4d98-a6b2-5aa64b508a77.jpg?v=1773235708&width=3145)
[Sale on 3/31 at 10 PM] Brazilian Dumortierite in Quartz 0.914ct Loose
Sale price¥12,800
[On Sale 3/12 10pm] Oregon Sunstone from the USA, 6.1mm/0.820ct Loose
Sale price¥16,800
![[On Sale 3/24 at 10 PM] US Oregon Sunstone 7.1mm/1.366ct Loose](http://store.karatz.jp/cdn/shop/files/P3038788_fcb072bd-c0ff-4c0d-b3e8-2977c0b3c267.jpg?v=1774136001&width=2840)
[On Sale 3/24 at 10 PM] US Oregon Sunstone 7.1mm/1.366ct Loose
Sale price¥27,800
![[On Sale at 10 PM on March 7th] Synthetic Alexandrite 4.3mm/0.430ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_36a26dac-4236-491c-b16c-549e3b56c2e0.png?v=1772852146&width=2250)
![[On Sale at 10 PM on March 7th] Tanzanite from Tanzania 0.416ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P3038608_02fbd2ab-e481-45df-87f2-9ef1683f93b5.jpg?v=1772844395&width=2814)
![[On Sale 3/7 at 10pm] Madagascar Blue Sapphire 0.347ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/P3027595_b2f0efc9-dd2b-43f1-8c21-06f190c960b7.jpg?v=1772845187&width=2923)
![[On Sale 3/7 at 10pm] Synthetic Cobalt Spinel 0.831ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/P3027720_1315f284-15f3-44eb-8974-663b6e90652e.jpg?v=1772851820&width=2978)
![[On sale 3/20 10 PM JST] Synthetic Cobalt Spinel 1.342ct Loose Stone with Certificate](http://store.karatz.jp/cdn/shop/files/P3027748_10add3aa-0fdf-4fc2-be7b-081237f1706e.jpg?v=1773806678&width=2915)
![[On Sale at 10 PM on March 12th] Brazilian Blue Tourmaline 0.819ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P3038538_dc090c9c-694c-40d8-a18a-ced42dddaca1.jpg?v=1773096880&width=2891)
![[On Sale 3/7 at 10pm] Zimbabwe Green Diamond Rough (Sawable) 0.428ct Rough with Trigon](http://store.karatz.jp/cdn/shop/files/P1210028_8b78668d-0ccf-41ed-b512-a778be22b5c8.jpg?v=1772575933&width=2764)
![[On sale 3/7 at 10pm] South African Rhodochrosite 1.820ct Loose Stone](http://store.karatz.jp/cdn/shop/files/20260201_P2047493_3ee24cfb-4307-4b29-a821-5473292118cd.jpg?v=1771020392&width=3135)
[On sale 3/7 at 10pm] South African Rhodochrosite 1.820ct Loose Stone
Sale price¥128,000
Brazilian Medusa Quartz (Paraiba Quartz) 1.317ct loose
Sale price¥18,800
Brazilian Paraiba tourmaline in quartz 1.602ct loose
Sale price¥39,800
Australian rainbow lattice sunstone 0.587ct loose
Sale price¥4,980
Australian rainbow lattice sunstone 0.378ct loose
Sale price¥3,980
Cambodian blue zircon 0.258ct loose
Sale price¥6,980
Cambodian blue zircon 0.197ct loose
Sale price¥5,980
Cambodian blue zircon 0.217ct loose
Sale price¥6,980
Cambodian blue zircon 0.267ct loose
Sale price¥6,980
Montana Sapphire 0.515ct loose (bicolor sapphire)
Sale price¥15,800
Montana Sapphire 0.361ct loose (yellow sapphire)
Sale price¥12,800
![[On Sale at 10 PM on March 12th] Mali Garnet (Grossular/Andradite Garnet) 0.675ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P3061884_04bef0c7-7679-4507-844d-d6ed81cfe315.jpg?v=1773178978&width=2854)
[On Sale 3/7 at 10pm] Brazilian Sky Blue Topaz 0.746ct Loose
Sale price¥8,800
![[On Sale at 10 PM on March 8th] Unheated Pigeon Blood Ruby 0.380ct Loose Stone AIGS](http://store.karatz.jp/cdn/shop/files/P3061841_b2e9c3b4-8559-4237-998b-0f3370a56d5a.jpg?v=1772854110&width=2897)
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.