!["PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring with Inspector Design [Ginoza Nobuchika Model] "London Blue Topaz"](http://store.karatz.jp/cdn/shop/files/a2355d930e69eb70c83aa0cfa4d17082_e078bd80-e8f1-4c34-910c-d2227b929fcd.png?v=1747953944&width=3519)
![[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"](http://store.karatz.jp/cdn/shop/files/collage_f4ce5d64-8804-46cd-8a67-6e5dfa2be8a9.png?v=1785924412&width=4000)
![Limited to 20 stones: Brazilian Paraiba tourmaline (cabochon cut, approximately 2.2 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PC190060_c4f87b12-3b41-4e2d-a32f-2338f4edfd21.jpg?v=1766651520&width=4000)
![[Limited to 26 gems] Indian Kerala Chrysoberyl Cat's Eye (neon green-yellow color / mini size) [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/P5150241_d2a4c2ef-ff94-439d-bb0f-721d59bbb910.jpg?v=1778881391&width=4000)
![[Available 9/12 at 10 PM] <limited to stones> Russian & Brazilian Alexandrite Gacha (includes 1 Chrysoberyl stone from Mr. Saint-Germain) <multi-purchase discounts available></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/collage_0444602b-c22b-43be-b113-85703b4bbf14.png?v=1789084768&width=2000)
![[Option] Paraiba Tourmaline component analysis sorting issuance fee](http://store.karatz.jp/cdn/shop/products/P6062508_58dd99d0-190a-4656-98c6-53c5ff54428e.jpg?v=1680959036&width=4000)
[Option] Paraiba Tourmaline component analysis sorting issuance fee
Sale price¥5,000
![[Available 9/20 at 10 PM] Limited to 7 pieces: Brazilian Batalha Paraiba Tourmaline & Elbaite rough stone gacha, featuring bicolor Paraiba (CuO: 2.7%, MnO: 2.0%) usually priced at 25,800 yen (multi-purchase discounts available).](http://store.karatz.jp/cdn/shop/files/108.png?v=1789273320&width=1512)
![[9/22 8:00 PM Sale] Fluorite Gacha: Win a Koshu Kiseki Kiriko (Limited to 16 stones) [Multi-purchase discount available]](http://store.karatz.jp/cdn/shop/files/120_1.png?v=1791601105&width=1890)
![[9/22 10:00 PM Release] <limited to stones> 1 Imperial Topaz stone (includes Brazilian unheated sherry color) (comes with 1 London Blue Topaz stone) - Regular price 22,800 yen <multiple purchase discount available></multiple></limited>](http://store.karatz.jp/cdn/shop/files/116.png?v=1789857914&width=1512)
![[On sale August 16th at 10 PM JST] Limited to 4 stones: Swiss Blue Topaz (Star of David/Hexagram Cut, approx. 8mm) [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/collage_538f8612-0b8f-4695-9de5-c35b848960aa.png?v=1788921228&width=2000)
![[9/20 10 PM Sale] <limited to stones> Brazilian Moss Green Beryl Gacha (0.8ct average, Rose cut) <multi-buy discounts available></multi-buy></limited>](http://store.karatz.jp/cdn/shop/files/collage_eeda1e6d-127b-4359-a416-6d73380a4c5b.png?v=1789863065&width=2000)
![[Sales start 8/13 10 PM] Limited to 12 Stones! Beryl Gacha where you can win a 12mm camellia-cut Limonite in Beryl or Santa Maria Aquamarine with a certificate of authenticity for 45,800 yen. (Multiple purchase discount available)](http://store.karatz.jp/cdn/shop/files/collage_42474086-f487-4265-a1d0-33fa7887cdea.png?v=1786090469&width=2000)
Brazilian Paraiba Tourmaline Ring and Half Eternity Ring Set (1.2mm)
Sale price¥198,000
![[Option] Paraiba tourmaline analysis report attached identification certificate issuance fee](http://store.karatz.jp/cdn/shop/products/f763614f5a2c22bc430c_a6f4f3a6-fd1b-4378-a11f-025dc9964731.jpg?v=1633481198&width=4000)
![[10/22, 10:00 PM Sale] <limited to stones> Sky Blue Topaz (Round approx. 8mm, only one stone is approx. 10mm) <multiple purchase discount available></multiple></limited>](http://store.karatz.jp/cdn/shop/files/PA050720_0c803cec-809e-4351-8ed4-19b5405d1e2a.jpg?v=1791592314&width=4000)
![[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)
![[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 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)
Mexican Hyalite Opal 2.592ct loose
Sale price¥9,800
【11/2 22時販売】ペリドット 3.995ctルース（リリーパッドインクルージョン）
Sale price¥22,800
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.