[On sale May 10th, 10 PM JST] Madagascar Andalusite 2.187ct Loose Stone
Sale price¥32,800
[On sale May 10th at 10 PM] Tanzanian Tanzanite 0.406ct Loose Stone
Sale price¥12,800
[Sales begin May 18 at 10 PM JST] [Colorflee] Pt900 Diamond 0.50ct Ring
Sale price¥79,800
![[Sales start 10:00 PM on May 4th] Colombian non-oil emerald (NONE) 0.060ct loose GIA](http://store.karatz.jp/cdn/shop/files/PC220238_2d3f6e8d-8516-4c46-bba2-f287e5941b46.jpg?v=1777686131&width=3224)
![[On sale 5/4 at 10 PM] Colombian bicolor emerald 0.274ct loose stone](http://store.karatz.jp/cdn/shop/files/P9183956_25a7a6b1-a220-4cf8-a400-be021fcbc2aa.jpg?v=1777685820&width=4000)
[On sale 5/4 at 10 PM] Colombian bicolor emerald 0.274ct loose stone
Sale price¥98,000
![[On sale May 4th, 10 PM JST] Bicolor Benitoite from USA, 0.624 ct loose stone with鑑別書](http://store.karatz.jp/cdn/shop/files/P4146107_bde5edf5-3b59-499c-9f77-602154ca5a17.jpg?v=1777685262&width=2873)
![[On sale May 3rd at 10 PM] Afghan Kunzite (Lilac Pink) 49.724ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/12562635_003.jpg?v=1775723129&width=1200)
![[On sale May 3rd at 10 PM] Pink Diamond 0.137ct Loose (FANCY DEEP BROWNISH PINK, I-1)](http://store.karatz.jp/cdn/shop/files/32501866_02.jpg?v=1775722654&width=1200)
![[On Sale May 2 at 10 PM] Ruby 0.286ct Loose Gemstone with Identification Report](http://store.karatz.jp/cdn/shop/files/P2197889_4020ad31-fba6-4c2b-94c0-ba3f34311857.jpg?v=1774485888&width=2690)
![[On sale May 5 at 10 PM] Untreated Sri Lankan Sapphire (Glass Body/Sapphire Crystal) 142.434 ct Rough with Certification](http://store.karatz.jp/cdn/shop/files/P1305718_0f25521f-68a8-45da-9c82-fe4b7c3ff2d0.jpg?v=1777594543&width=4000)
![[Sale starts May 2nd, 10 PM JST] 《Limited to 9 Stones》Rare Round Cabochon Cut Sri Lankan Star Sapphire (Approx. 5.0mm) 《Multi-item Discount Available》](http://store.karatz.jp/cdn/shop/files/P1010056_6988cdc8-8729-493d-a408-30be8d1b73ec.jpg?v=1777521383&width=4000)
Loose Brown Diamond 0.290ct (FANCY BROWN, SI-2)
Sale price¥15,800
Diamond 3.7mm/0.318ct Loose (F, SI-1, Princess Cut)
Sale price¥49,800
Colombian mint color emerald 0.136ct loose stone
Sale price¥6,980
Colombian mint color emerald 0.155ct loose stone
Sale price¥7,980
Colombian Trapiche Emerald 0.422ct Loose
Sale price¥18,800
Bicolor Zoisite 0.823ct rough stone
Sale price¥6,980
Purple Zoisite 2.617ct rough stone
Sale price¥9,800
Bicolor Tanzanite 1.677ct rough stone
Sale price¥7,980
Bicolor Tanzanite 5.582ct rough stone
Sale price¥18,800
Colombian emerald 0.153ct rough stone
Sale price¥6,980
Colombian emerald 0.499ct rough stone
Sale price¥14,800
Colombian emerald 0.443ct rough 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.