![[Available at 10 PM on September 21st] Limited to 20 stones. Includes 2 Koshu Kiriko Fire Opals. 1 loose fire opal gacha. Discounts available for multiple purchases.](http://store.karatz.jp/cdn/shop/files/7_cf8144ee-7ac5-4965-b93c-f9f618bb4cbf.png?v=1758172271&width=1500)
![[Available at 10 PM on September 28th] [Limited to 16 stones] Loose tourmaline gacha featuring special cuts including Sakura in cut (from Congo) and Dandelion cut (from Brazil) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/6_ec410839-be94-4f88-8ee8-2aecc42a03a1.png?v=1758170824&width=1500)
![[On sale at 10 PM on September 21st] Limited to 14 stones: Beryllium-heated Sapphire (3.5mm, KEN Cut) - Single Loose Stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010016_abbaadd4-abc6-4f95-9926-76bbf33dc3a4.jpg?v=1758169059&width=4000)
[On Sale at 10 PM on October 4th] Blue Sapphire 4.1mm/0.332ct Loose
Sale price¥25,800
[On sale at 10pm on September 30th] Blue sapphire 0.291ct loose stone
Sale price¥18,800
[On Sale at 10pm on October 3rd] Zimbabwean Sphene 1.057ct Loose Stone
Sale price¥22,800
[On Sale at 10pm on October 3rd] Zimbabwean Sphene 0.756ct Loose Stone
Sale price¥18,800
[On Sale at 10pm on October 3rd] Zimbabwean Sphene 0.850ct Loose Stone
Sale price¥19,800
[On sale from 10/1 at 10pm] Zimbabwean sphene 1.170ct loose stone
Sale price¥22,800
[On sale from 10/1 at 10pm] Zimbabwean sphene 0.751ct loose stone
Sale price¥16,800
Tanzanian Bicolor Zoisite 1.006ct Loose Stone
Sale price¥55,800
Tanzanian bicolor zoisite 1.327ct loose stone
Sale price¥59,800
[On Sale at 10pm on October 1st] Australian Boulder Opal 9.120ct Loose
Sale price¥98,000
[On Sale at 10pm on October 1st] 1.406ct Loose Rubellite from Mozambique
Sale price¥69,800
![[On Sale at 10:00 PM on October 4th] Brazilian Swiss Blue Topaz 1.065ct Loose](http://store.karatz.jp/cdn/shop/files/P9248792_9b97c5dc-bbef-45b1-b0fa-199b754aabdf.jpg?v=1759411715&width=3145)
![[10/3 22:00 Sale] German Auchenite 0.090ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P9248741_228b264d-02c8-4d0d-b214-a5cc146b7b80.jpg?v=1759217740&width=1959)
[10/3 22:00 Sale] German Auchenite 0.090ct Loose Stone
Sale price¥39,800
[On sale at 10pm on September 20th] German Auchenite 0.097ct Loose Stone
Sale price¥39,800
[On sale at 10pm on September 20th] Indian Moonstone 2.415ct Loose
Sale price¥15,800
[On sale at 10pm on September 20th] Tibetan Andesine 0.967ct Loose Stone
Sale price¥15,800
Zircon 0.991ct loose stone
Sale price¥8,800
Zircon 0.848ct loose stone
Sale price¥8,800
Tanzanian zircon 0.942ct loose stone
Sale price¥8,800
1.008ct Tanzanian orange zircon loose stone
Sale price¥9,800
Tanzanian orange zircon 0.813ct loose stone
Sale price¥6,980
UV opal from Hokkaido 12.259ct loose with patch
Sale price¥6,980
Tagtupite from Greenland 0.477ct loose
Sale price¥9,800
Pink star sapphire 0.619ct loose
Sale price¥5,980
Brazilian Andalusite 0.557ct loose
Sale price¥2,980
Brazilian Andalusite 0.634ct loose
Sale price¥3,980
Brazilian Andalusite 0.608ct loose
Sale price¥3,980
Ekanite from Sri Lanka 1.430ct loose
Sale price¥29,800
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.