![[Available at 10 PM on December 5th] 18K Yellow Gold Burmese Pink Spinel 3.9mm/0.276ct Hot Pink Spinel Ring](http://store.karatz.jp/cdn/shop/files/PB067527_b491d6f1-ea46-495e-98a3-354e971fd5f7.jpg?v=1764713928&width=3139)
![[Deadline: 10 AM on December 5th] [Raffle Sale 112904] Unheated Kashmir Sapphire 0.210ct Loose GIA](http://store.karatz.jp/cdn/shop/files/P1010024_191f9b00-09b5-4002-b3fb-18c14fcfe89f.jpg?v=1764151020&width=2807)
![[12543545 published] Non-oil emerald 0.510ct loose](http://store.karatz.jp/cdn/shop/files/P6095155_97466828-4631-4e90-b4ca-7ff6f8853a18.jpg?v=1686868907&width=3464)
[12543545 published] Non-oil emerald 0.510ct loose
Sale price¥498,000
Musgravite/Taaffeite 15.472ct Ruth Japanese and German
Sale price¥158,000
![[Sales start at 10 PM on December 10th] Sebonstar Jewelry for Adults, Part 3: Sebonstar Pendant for Adults, Mirage Edition (Silver Model/Precious Model)](http://store.karatz.jp/cdn/shop/files/P8061894.jpg?v=1761201097&width=4000)
![[Lottery Sale: Friday, October 31st, 10:00 AM] Madagascar Padparadscha Sapphire 5.6mm/0.768ct Loose Stone - Central Gem Laboratory](http://store.karatz.jp/cdn/shop/files/PA211166.jpg?v=1761698167&width=4000)
[12552511] Pink diamond 0.296ct loose stone
Sale price¥188,000
[12550983] Madagascar Pezzottaite 0.670ct loose stone
Sale price¥188,000
Unheated Brazilian Color Change Paraiba Tourmaline 0.30ct Loose GIA
Sale price¥1,280,000
![[Sale: Friday, December 5th, 10 PM] Anime "Assassination Classroom" x KARATZ Collaboration Korosensei Five Great Jewels Figure (Limited to 100 units)](http://store.karatz.jp/cdn/shop/files/ansatsu_bnrC_1_1080x1080_1be8ed3d-7a10-47a1-9508-85a22ed9b825.jpg?v=1760620266&width=1080)
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.