![Limited to 10 stones: Madagascar pink sapphire (heart-shaped, including padparadscha color, approximately 3 x 2.3 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_af0c773f-5960-4051-9ae9-82d3098c4584.png?v=1787791015&width=2000)
![[On sale August 23rd at 10 PM] Limited 10 Stones! Amethyst Gacha featuring Koshu-Kiseki-Kiriko-plus-three "Akatsuki" (with one citrine cut by Mr. Sandje) [Multiple Purchase Discount Available]](http://store.karatz.jp/cdn/shop/files/collage_f4ace2f9-5fe7-4ba7-ad87-22a174e398a0.png?v=1787354382&width=2000)
![[On sale August 21st, 10 PM] "Limited to 20 stones" Sri Lankan Ratnapura Green Zircon Single Stone Loose Gemstone "Bulk purchase discount available"](http://store.karatz.jp/cdn/shop/files/P8070258.jpg?v=1787095598&width=4000)
【8/31 22時販売】【カラフリ】Pt900 カラーチェンジサファイア0.446ct ダイヤモンド0.12ctリング鑑別書
Sale price¥89,800
【8/30 22時販売】マダガスカル産サファリン 0.164ctルース 鑑別書
Sale price¥12,800
【8/30 22時販売】マダガスカル産サファリン 0.145ctルース 鑑別書
Sale price¥11,800
【8/30 22時販売】ジンバブエ産スフェーン 0.302ctルース
Sale price¥8,800
【8/30 22時販売】ジンバブエ産スフェーン 0.332ctルース
Sale price¥9,800
【8/30 22時販売】ブルーサファイア 0.176ctルース
Sale price¥14,800
【8/30 22時販売】ブルーサファイア 0.148ctルース
Sale price¥8,800
【8/29 22時販売】タンザニア産パープルスピネル 0.751ctルース
Sale price¥18,800
Royal blue sapphire 1.220ct loose stone
Sale price¥258,000
Purple zoisite from Tanzania 1.103ct loose Japanese German edition
Sale price¥98,000
[Lottery Sale ②_202608_10] Yellow Sapphire 2.190ct Loose GIT
Sale price¥158,000
[Listed as 12563354] Jeremejevite from Namibia, 0.103ct Loose Stone
Sale price¥25,800
[Featured in 12563725] Sri Lankan Pink Sapphire 0.319ct Loose
Sale price¥29,800
【22602701掲載】【Karafuri】Pt900 Star Sapphire 0.744ct Ring
Sale price¥128,000
[On sale August 23rd at 10 PM] US Oregon Sunstone 6.0mm/ 0.729ct Loose
Sale price¥18,800
[Posted on 12563358] Jeremejevite from Namibia 0.150ct Loose
Sale price¥37,800
[Published as 12563385] Tanzanian Zircon 3.964ct Loose
Sale price¥39,800
【12563732 Posted】Tanzanian Red Spinel 0.177ct Loose
Sale price¥35,800
[Posted on 12564182] Tanzanian Spinel 1.154ct Loose Gemstone
Sale price¥39,800
[Posted 12564181] Tanzanian Spinel 1.117ct Loose Stone
Sale price¥39,800
[Listing #12563493] Sri Lankan Blue Sapphire 0.434ct Loose Gemstone
Sale price¥22,800
[Listed as 12563733] Tanzania Red Spinel 0.241ct Loose Stone
Sale price¥43,800
[Listed as 12563903] Tanzanian Bicolor Zoisite 1.382ct Loose Stone
Sale price¥45,800
[Listed as 12563918] Sri Lankan Purple Sapphire 0.730ct Loose Stone
Sale price¥55,800
[12552852] Citrine 2.734ct loose stone
Sale price¥22,800
[Lottery Sale 0628_08] Unheated Kashmir Sapphire 0.160ct Loose GIA
Sale price¥98,000
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.