Sphane 4.3mm/0.275ct loose
Sale price¥3,980
Sphene 4.3mm/0.360ct loose
Sale price¥3,980
![[Available at 10 PM on August 23rd] [Limited to 8 stones] Brazilian Rainbow Aquamarine Loose Stone (Pear Shape) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_c2752ed8-4e3e-4837-9ef8-a02a86ef0a25.png?v=1755867372&width=2000)
![[Available at 10 PM on August 10th] Brazilian Rainbow Aquamarine Loose Stone (Iridescent Aquamarine) {Multiple Purchase Discounts Available}](http://store.karatz.jp/cdn/shop/files/collage22.10.05.png?v=1754699109&width=1000)
![[Available at 10 PM on August 13th] [Limited to 9 stones] One loose Brazilian rainbow aquamarine (oval cut, average 0.8 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_60dc3c4e-56f7-4fd7-a18c-f0d43b2fb29e.png?v=1754965065&width=2000)
![[8/10:22 Sale] {Limited to 5 Stones} Pentagon Cut Gacha (Sphene, Sunstone, Emerald, etc.) 1 Loose Stone {Multiple Purchase Discounts Available}](http://store.karatz.jp/cdn/shop/files/collage_e64a6c4f-467e-4fd1-8383-053b0c858708.png?v=1754790198&width=2000)
![Limited to 5 sets! Fluorescent Diamond Gacha! 💎 Set of 2 loose diamonds (2.4-3.4mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_babdcd12-efb0-4d6b-a475-96acc66283bf.png?v=1754035671&width=2000)
![[Sales end on Sunday, August 31st] TV anime "A long time ago, magical girls and evil were enemies." x KARATZ collaboration acrylic coaster featuring newly drawn illustrations](http://store.karatz.jp/cdn/shop/files/5b220c17447841d203bbd6bbb2b13e87.jpg?v=1751935391&width=2250)
![[Sales end on Sunday, August 31st] TV anime "Magical Girls and Evil Were Once Enemies" x KARATZ collaboration tin mirror featuring newly drawn illustration](http://store.karatz.jp/cdn/shop/files/1d418f01ef377f6875b664fb78e3fd74.jpg?v=1751935469&width=2250)
![[Sales end on Sunday, August 31st] TV anime "Magical Girls and Evil Were Once Enemies" x KARATZ collaboration heart badge featuring newly drawn illustrations](http://store.karatz.jp/cdn/shop/files/ce7fda6ab48aa73ed08a665ad0e71fe1.jpg?v=1751934767&width=2250)
![[Sales end on Sunday, August 31st] TV anime "A long time ago, magical girls and evil were enemies." x KARATZ collaboration acrylic keychain featuring newly drawn illustrations](http://store.karatz.jp/cdn/shop/files/45469d1b4a585b642446f6595788c1cf.jpg?v=1751934149&width=2250)
![[Sold out] TV anime "Tokyo Ghoul" x KARATZ collaboration clear file featuring new illustrations](http://store.karatz.jp/cdn/shop/files/A4_1e1a7249-6290-449b-b267-b2555c2c3b9c.jpg?v=1749309063&width=2250)
![[Sold Out] TV Anime "Tokyo Ghoul" x KARATZ Collaboration Clear Postcard Set with New Illustrations](http://store.karatz.jp/cdn/shop/files/428aad1349d1b6062359ea69c02bc6d8_191fcb81-449e-4ded-a184-6ef4ba0474d3.jpg?v=1749308758&width=2250)
![[Sold out] TV anime "Tokyo Ghoul" x KARATZ collaboration holographic badges featuring newly drawn illustrations (2 types)](http://store.karatz.jp/cdn/shop/files/875fd328ee35b020eddfef89f0281019_dc4e990f-586c-4fb0-bb57-bac2a7d4fe28.jpg?v=1749523166&width=2250)
![[Sold out] TV anime "Tokyo Ghoul" x KARATZ collaboration: 3-piece acrylic keychain set featuring newly drawn illustrations (2 types)](http://store.karatz.jp/cdn/shop/files/3_d8d4b5d7-9ae0-440a-b64d-ec6904c5f96a.jpg?v=1749308058&width=2250)
![[Limited to 8 stones] Jam Gacha💎 1 Rainbow Garnet stone (January birthstone) from Tenkawa Village, Nara Prefecture [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/2025-05-158.54.00.png?v=1747266901&width=1279)
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.