Green quartz 10.330ct loose (pineapple cut)
Sale price¥4,980
Andalusite 5mm/0.480ct loose
Sale price¥3,980
Hollandite in quartz 7.300ct loose
Sale price¥22,800
[On Sale at 10pm on 10/22] Brazilian Amethyst 5.883ct Loose
Sale price¥9,800
[On Sale at 10pm on 10/23] Brazilian Aquamarine 0.334ct Loose Stone
Sale price¥6,980
![[4 stones left] Brazilian Dendritic Quartz Kitten Cut Loose Stone (For Beginners) (5mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_bee5ee11-c26d-47e0-9e94-2c270bbdf768.png?v=1760169992&width=2250)
[10/12 22:00 Sale] Brazilian Paraiba Tourmaline 0.052ct Loose Stone
Sale price¥29,800
![[Available at 10/12 22:00] 18K Yellow Gold Brazilian Santa Maria Aquamarine 0.284ct Pendant (Necklace)](http://store.karatz.jp/cdn/shop/files/P1016298_f5cbd9ee-df80-41bf-8dc4-086413f36646.jpg?v=1760001284&width=3194)
[10/18 22:00 Sale] Brazilian London Blue Topaz 0.415ct Loose
Sale price¥6,980
[10/17 22:00 Sale] Brazilian Morganite 0.484ct Loose Stone
Sale price¥12,800
[10/17 22:00 Sale] Brazilian Morganite 0.377ct Loose Stone
Sale price¥8,800
[10/17 22:00 Sale] Brazilian Aquamarine 0.428ct Loose Stone
Sale price¥8,800
[On Sale at 10pm on 10/21] Brazilian Bicolor Tourmaline 1.449ct Loose
Sale price¥19,800
[12552640] Unheated Brazilian Paraiba Tourmaline 0.073ct loose stone
Sale price¥69,800
[12552618] Unheated Brazilian Paraiba Tourmaline 0.063ct loose stone
Sale price¥65,800
[12552081] Unheated Brazilian Paraiba Tourmaline 0.025ct Loose Stone
Sale price¥29,800
[12552075] Unheated Brazilian Paraiba Tourmaline 0.037ct loose stone
Sale price¥45,800
[12552074] Unheated Brazilian Paraiba Tourmaline 0.042ct Loose Stone
Sale price¥59,800
[12549595 published] Goshenite 1.080ct loose
Sale price¥8,800
[Posted in 12547848] Green tourmaline 0.869ct loose
Sale price¥15,800
[12547847 published] Bicolor tourmaline 0.398ct loose
Sale price¥8,800
[12547844 published] Pink tourmaline 0.605ct loose
Sale price¥8,800
[Posted 12547829] Brazilian Dumortierite in Quartz 0.975ct loose
Sale price¥9,800
![[On sale from 10/10 at 10 PM] [Limited to 10 stones] Brazilian Bicolor Tourmaline Loose Stone (Baguette Cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/14_15be1edf-3bee-4b6c-a802-65c04eb4d4a9.png?v=1759454008&width=1500)
[On Sale at 10pm on October 5th] Brazilian Aquamarine 8.858ct Loose Stone
Sale price¥198,000
Brazilian Alexandrite 0.073ct Ruth (Hemachita Mine)
Sale price¥12,800
Brazilian Alexandrite 0.099ct Ruth (Hemachita Mine)
Sale price¥19,800
Brazilian Alexandrite 0.097ct Ruth (Hemachita Mine)
Sale price¥22,800
Brazilian Alexandrite 0.098ct Ruth (Hemachita Mine)
Sale price¥22,800
Brazilian Paraiba tourmaline 0.370ct loose (CuO:1.0%, MnO:1.2%)
Sale price¥59,800
Bicolor tourmaline 0.418ct loose
Sale price¥3,980
Brazilian rainbow scapolite 6mm/0.516ct loose
Sale price¥2,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.181ct loose
Sale price¥3,980
[10/10 22:00 Sale] Brazilian Petalite 0.725ct Loose Stone
Sale price¥4,980
[10/10 22:00 Sale] Brazilian Petalite 1.197ct Loose Stone
Sale price¥7,980
[On sale from 10/6 at 10pm] Brazilian Imperial Topaz 0.394ct 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.