Pink opal 7.180ct loose
Sale price¥8,800
Andalusite 5mm/0.480ct loose
Sale price¥5,980
Sea blue chalcedony 6.964ct loose
Sale price¥7,980
Hollandite in quartz 7.300ct loose
Sale price¥25,800
Scapolite Cat's Eye 8.880ct Loose
Sale price¥8,800
Bicolor spinel 1.17ct loose
Sale price¥79,800
Cambodian Blue Zircon (Ratanakiri Blue) 23.12ct Loose
Sale price¥498,000
Orange Scapolite 5.57ct loose
Sale price¥19,800
![[Jeweler's Tools] 2-piece loose tweezers set with stopper (for small jewelry)](http://store.karatz.jp/cdn/shop/products/P61587851.jpg?v=1655341623&width=4000)
![[Jeweler's Tools] Color change penlight loose set](http://store.karatz.jp/cdn/shop/files/P1010673_2976de1d-08ce-4d92-94af-524da4485c99.jpg?v=1725605083&width=4000)
[Jeweler's Tools] Color change penlight loose set
Sale price¥4,980
![[Jeweler's Tools] 3 black light loose pieces (ruby, red spinel rough, oil-in-quartz) with rechargeable battery](http://store.karatz.jp/cdn/shop/files/collage_c90ad5e1-b47a-49f9-b7d7-d75e04cd883a.png?v=1724920180&width=2000)
![[Jeweler's Tools] White penlight (for loose), loose 3-piece set](http://store.karatz.jp/cdn/shop/products/P61587871.jpg?v=1655341322&width=3748)
[Jeweler's Tools] White penlight (for loose), loose 3-piece set
Sale price¥5,980
[12548587 published] Star sapphire from Sri Lanka 1.325ct loose
Sale price¥5,980
[Posted 12548489] Cornell pin from Tanzania 0.286ct loose
Sale price¥19,800
[Posted 12548486] Cornerpine from Tanzania 0.312ct loose
Sale price¥25,800
![[On Sale 10/4 at 10 PM] Limited to 3 Stones: Synthetic Black Moissanite Loose Stone (2.5mm, Round Cut) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/P1010072_20121cad-8aa9-44eb-95d5-6ff7d148f53e.jpg?v=1759534849&width=3350)
![[On Sale 10/11 at 10 PM] [Limited to 18 stones] Brazilian Paraiba Tourmaline (Cabochon Cut, Approx. 2.2mm) Loose Stone [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/P1010295_d8ab5f93-85a4-4f5a-ad44-3da845e08082.jpg?v=1759971801&width=4000)
![[10/10 22:00 Sale] Brazilian Green Tourmaline 0.490ct Loose](http://store.karatz.jp/cdn/shop/files/PA033767_8fe0af6a-fc7f-40c7-b854-d3104963a93d.jpg?v=1759637339&width=2710)
![[On Sale at 10 PM on October 8th] Tanzanian Sunstone (Illusion Sunstone) 0.347ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034357_147fe577-6d33-48e8-9d87-b0ab85c6c7c9.jpg?v=1759633891&width=3194)
![[On Sale 10/7 at 10 PM] [Cat Cut] Brazilian Goethite-in-Amethyst 0.561ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034391.jpg?v=1759630940&width=4000)
![[12559908] Almandine Garnet 1.037ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA036784.jpg?v=1760142907&width=4000)
![[Available at 10 PM on September 26th] Limited to 1 set: Benitoite Gradient Set of 6 (2.0mm Round Cut, Top Quality) Loose Stones](http://store.karatz.jp/cdn/shop/files/P1010002_2efb09d2-1d2d-4183-a04f-bc784d6c816d.jpg?v=1758787737&width=1810)
Unheated Brazilian Color Change Paraiba Tourmaline 0.30ct Loose GIA
Sale price¥1,280,000
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.