![[On sale 10/31 at 10 PM] 《Limited to 5 stones》 1 Sri Lankan Uva Moonstone Loose Stone (New Lumina Star Cut, by Mr. Sanje, avg. 0.5ct) 《Multi-buy discount available》](http://store.karatz.jp/cdn/shop/files/collage_055269e3-e881-48d7-8e6b-be69a2c72be1.png?v=1791681460&width=2000)
![[Available 11/1 at 10 PM] 《Limited 9 pieces》 Indian Iolite Sunstone loose stone (avg. 0.70ct, pear-shaped cut) 《Multi-buy discount available》](http://store.karatz.jp/cdn/shop/files/collage_f453805f-efe0-4cb6-9064-b8b6860ac31c.png?v=1791682551&width=2000)
![[On sale 10/30 at 22:00] 《Limited to 9 stones》 1 Iolite Sunstone loose stone from India (average 0.70ct) 《Multiple purchase discount available》](http://store.karatz.jp/cdn/shop/files/collage_2b006162-3b5c-439b-b582-bdff30c42e76.png?v=1791682080&width=2000)
![[Available 11/1 at 10 PM] 《8 stones limited》 Indian Iolite Sunstone loose stone (avg. 0.4ct, oval cut) 《Multiple purchase discount available》](http://store.karatz.jp/cdn/shop/files/collage_0f297579-3922-4085-bec1-07cdc555493a.png?v=1791683111&width=2000)
![[Available 11/1 at 10 PM] <limited to stones> Indian Iolite Sunstone loose stone (avg. 0.32ct) <multi-buy discount available></multi-buy></limited>](http://store.karatz.jp/cdn/shop/files/collage_0b1503d0-c0a4-4c7d-8be7-a99800d445ec.png?v=1791683502&width=2000)
![[Available 11/1 at 10 PM] 《7 stones limited》 Synthetic Cobalt Spinel (by Mr. Saint-Ger, 3mm hexagonal cut) 《Multi-buy discount available》](http://store.karatz.jp/cdn/shop/files/2026-10-1111.00.09.png?v=1791684034&width=1246)
![[On Sale 10/10 at 22:00] 《Limited to 15 stones》 Jaipur-cut Carved Gem Gacha 《Multi-purchase discount available》](http://store.karatz.jp/cdn/shop/files/122.png?v=1791168528&width=1890)
[Available Oct 10, 10:00 PM] Madagascar Apatite 0.300ct Loose Stone
Sale price¥8,800
[10/10 10:00 PM Release] Turkish Diopside 0.450ct Loose Stone
Sale price¥9,800
[Item 12564459] Nepalese Kyanite 1.017ct Loose Gemstone
Sale price¥9,800
![[Available Oct 9, 10:00 PM] <<limited quantity>> Lab-Grown Diamond Cabochon Loose Stone (1pc) (CVD / 2.4-2.7mm) <<multi-purchase discount available>></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/PA020298.jpg?v=1791188631&width=4000)
[Ref: 12564102] Pink Sapphire from Sri Lanka, 0.142ct loose stone
Sale price¥9,800
![[Available 10/3 at 10:00 PM] <limited to stones> Chic-colored FANCY color diamond gacha, sourced in Hong Kong, 1 loose stone (avg. 0.35ct) <multi-purchase discount available></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/collage_3e17ed11-0933-4397-ab56-b8095908190a.png?v=1790933063&width=2000)
![[Oct 3, 10:00 PM Release] 《21 Stones Only》 Chic-colored FANCY color diamond gacha, 1 loose stone (0.16ct average), sourced in Hong Kong 《Multi-purchase discounts available》](http://store.karatz.jp/cdn/shop/files/collage_a6b77cfc-715f-4208-8ba2-42d6d800956d.png?v=1790931568&width=2000)
![[Available Oct 3, 10 PM] <limited stones> Moldavite loose stone from former Czechoslovakia (8x6mm, oval cut) <multi-purchase discount available></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/collage_d1eefbe6-2e76-4e63-8dad-0398d243f5e7.png?v=1790922792&width=2000)
[On sale 10/7, 10 PM] Indian Black Moonstone 0.568ct Loose Gemstone
Sale price¥8,800
[10/5 10:00 PM Release] Australian Black Opal 0.261ct Loose Stone
Sale price¥9,800
![[Available 10/3 at 10 PM] <limited to stones> Mexican Cantera Opal Gacha - 1 Loose Stone (Avg. 2.5ct) <multi-purchase discounts available></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/P9250397.jpg?v=1790400242&width=4000)
![[10/2 10 PM Sale] <<limited to stones>> Brazilian Bicolor Amethyst Gacha - 1 loose stone (approx. 9x7mm) <<multi-purchase discount available>></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/collage_5e97712b-2ccb-4420-9be9-481ee853d563.png?v=1790771941&width=2000)
![[Available 10/2 at 10 PM] 《Limited to 16 stones》 Indian Andesine-Labradorite Gacha Loose Stone, Ojiki-cut (Avg. 1.3ct) 《Multi-purchase discounts available》](http://store.karatz.jp/cdn/shop/files/collage_6ac73e79-de81-46d0-ac91-9059bbe6a442.png?v=1790771658&width=2000)
[10/14 10:00 PM Release] Vietnamese Aquamarine 0.339ct Loose Stone
Sale price¥9,800
[Available Oct 5, 10:00 PM] Malawi Moonstone 1.640ct Loose Stone
Sale price¥9,800
[On sale 9/30 at 22:00] Malawi Moonstone 1.388ct Loose Stone
Sale price¥8,800
[Available 9/26 at 10 PM] Malawi Moonstone Loose Gemstone, 2.229ct
Sale price¥9,800
[Available 9/26 at 10 PM] Picture Agate 8.321ct Loose Stone
Sale price¥9,800
[9/27 10:00 PM Release] Colombian Emerald 0.079ct Loose Stone
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.