Spanish sphalerite 6.392 ct loose stone
Sale price¥79,800
Spanish Sphalerite 11mm/7.286ct loose stone
Sale price¥79,800
Mexican Cantera Opal 17.284ct Loose
Sale price¥39,800
[On sale May 2nd at 10 PM JST] K18 Peridot Chain Ring
Sale price¥22,800
[On sale May 2nd at 10 PM JST] K18 Aquamarine Chain Ring
Sale price¥24,800
Mica in Quartz 0.710ct Loose
Sale price¥5,980
Mica in Quartz 0.736ct loose stone
Sale price¥5,980
Mica in Quartz 0.865ct Loose Stone
Sale price¥5,980
Colombian emerald 0.443ct rough stone
Sale price¥8,800
Colombian emerald 0.499ct rough stone
Sale price¥14,800
Colombian emerald 0.153ct rough stone
Sale price¥6,980
Bicolor Tanzanite 5.582ct rough stone
Sale price¥18,800
Bicolor Tanzanite 1.677ct rough stone
Sale price¥7,980
Purple Zoisite 2.617ct rough stone
Sale price¥9,800
Bicolor Zoisite 0.823ct rough stone
Sale price¥6,980
Colombian Trapiche Emerald 0.422ct Loose
Sale price¥18,800
Diamond 3.7mm/0.318ct Loose (F, SI-1, Princess Cut)
Sale price¥49,800
Loose Brown Diamond 0.290ct (FANCY BROWN, SI-2)
Sale price¥15,800
[On sale 5/27 10 PM] Diamond 3.8mm/0.197ct Loose (E, VVS-1, VeryGood)
Sale price¥39,800
[On sale May 2nd at 10 PM] K18 Amethyst Chain Ring
Sale price¥18,800
![[May 3, 10 PM JST Release] Dendritic Agate (Dendritic Quartz) Gacha - 1 Stone Loose Piece "Tucson New Arrivals / Limited 7 Stones" (Multi-Purchase Discount Available)](http://store.karatz.jp/cdn/shop/files/collage_a21961d5-944b-44ca-b713-5888dd00b791.png?v=1777552169&width=2250)
![[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)
![[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 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 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 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 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
![[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)
Repair cost + 2,500 yen
Sale price¥2,500
Additional fee: +1,000 yen
Sale price¥1,000
Additional charge for resizing: 9,000 yen
Sale price¥9,000
Additional charge for resizing: 8,250 yen
Sale price¥8,250
Additional charge for resizing: 6,750 yen
Sale price¥6,750
Additional charge for resizing: 9,750 yen
Sale price¥9,750
![[Made to order] "Rhino Ring" by special modeling artist Masatoshi Asami {Exhibited at Ueno Marui}](http://store.karatz.jp/cdn/shop/products/P6150002_4e5e545f-8283-4842-b3b0-294ce01bc871.jpg?v=1655355285&width=4000)
Additional fee: 7,500 yen
Sale price¥7,500
Yellow diamond 0.190ct loose (FANCY DEEP ORANGY YELLOW, SI2)
Sale price¥39,800
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.