![Limited to 7 stones: Brazilian Limonite in Quartz, 1 loose stone (average 6 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_10790d8c-055f-404e-b91b-4dc8a6f1ff16.png?v=1756029326&width=2000)
![[Limited to 6 stones] Contains 2 stones in total: 1 gemstone (rough stone) that is actually featured in a gemstone encyclopedia + 1 emerald rough stone.](http://store.karatz.jp/cdn/shop/files/collage_5fd345f1-1646-43a1-b347-1e83dd089a63.png?v=1751925957&width=2000)
Brazilian Paraiba Tourmaline Ring and Half Eternity Ring Set (1.2mm)
Sale price¥198,000
【10/24 22時販売】《限定10石》タンザニア産ゾイサイトガチャ（平均3.5ct、カボションカット、含浸処理）《複数購入割引有》
Sale price¥2,980
【10/23 22時販売】《限定3石》クォーツアイトガチャ1石ルース（カスタムカット、4.7～4.9ｍｍ、サンジェ氏）《複数購入割引有》
Sale price¥3,980
【10/25 22時販売】《限定7セット》タンザニア産ミントダイオプサイド2石セット（原石＆訳ありルース）《複数購入割引有》
Sale price¥5,980
![[Available 9/22 at 22:00] 《7 Stones Only》 Moss Green Beryl Gacha (Oval Cut) Avg. 1.16ct 《Multi-buy Discount Available》](http://store.karatz.jp/cdn/shop/files/collage_28d6bd84-5d8c-4dd5-a10a-941c9b7f88ba.png?v=1791725690&width=2000)
![[On sale 10/30 at 22:00] 《Limited to 3 stones》 Oxblood red coral from Kochi Prefecture, half-drilled (8.7mm, top-color equivalent) 《Multi-buy discount available》](http://store.karatz.jp/cdn/shop/files/PA061324_4217c560-3782-4f8c-9aa1-e3fa5a2264e0.jpg?v=1791680300&width=4000)
![[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 9/20 at 10 PM] 《Limited to 13 stones》 1 Raw Madagascar Apatite stone (avg. 3.8ct) 《Multi-buy discount available》](http://store.karatz.jp/cdn/shop/files/P9181200.jpg?v=1789856364&width=4000)
![[Available 9/5 at 10:00 PM] 《3 stones only》 Top-quality American benitoite (Princess cut, 2mm) 《Multi-purchase discount available》](http://store.karatz.jp/cdn/shop/files/P9010985_03bf3960-0d8e-4862-8e1b-d45b6bbe7e03.jpg?v=1788592754&width=3268)
![[On sale 9/4 at 10:00 PM] 《Limited to 7 stones》 Colombian mint-colored emerald rough (average 0.51ct) 《Multi-buy discount available》](http://store.karatz.jp/cdn/shop/files/collage_4a80269b-3a4f-4b51-bce8-58c65252f527.png?v=1788335435&width=2000)
![[Sale starts August 21st, 10 PM JST] Limited 6 stones: Sri Lankan Uba Moonstone (round buff top cut, 6mm) - Multi-purchase discount available](http://store.karatz.jp/cdn/shop/files/P8070234.jpg?v=1787050510&width=4000)
![[On sale August 14th, 10 PM] Limited 10 pieces: Zimbabwe Mint Fluorite Single Stone Loose (average 2.2ct) [Bulk purchase discount available]](http://store.karatz.jp/cdn/shop/files/collage_c70b65a7-64c4-4d4b-a6be-3d893c5cc2ad.png?v=1786091316&width=2000)
![[Sale starts July 7 at 10 PM] Limited to 14 Stones: Special Cut Gacha [Bulk Purchase Discount Available]](http://store.karatz.jp/cdn/shop/files/75.png?v=1785113154&width=2268)
[Lottery Sale 0521_08] Madagascar Sapphire 1.650ct Loose GIA
Sale price¥158,000
![[Sale on 7/ at 10 PM] "Limited to 13 Stones" Madagascar Sapphirine, average 0.09ct "Multiple Purchase Discount Available"](http://store.karatz.jp/cdn/shop/files/P1010288_ec4000a1-014e-44e1-9b97-40f834b9e6e7.jpg?v=1783494963&width=4000)
1.758 ct Ruby Loose Stone from Vietnam with Identification Report
Sale price¥49,800
Yellow diamond 0.188ct loose (FANCY INTENSE YELLOW, VS1)
Sale price¥47,800
Mozambique Ruby 0.544ct Loose Stone with Certificate of Authenticity
Sale price¥39,800
1.008ct Tanzanian orange zircon loose stone
Sale price¥9,800
Pakistani Axinite 0.500ct loose stone (green tint)
Sale price¥12,800
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.