![[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_fb9c3ca5-bb7a-4e26-971a-aa8eea6aac50.png?v=1785474947&width=3000)
![[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_6f3840e9-55d7-4900-ae4a-1603715453ac.png?v=1785481375&width=4000)
![[On Sale July 31st at 10 PM] "Limited to 20 Stones" Indigo Tourmaline Gacha with 5 Gem-Quality Stones + 1 Loose Stone (Certificate Included) (Multiple Purchase Discount Available)](http://store.karatz.jp/cdn/shop/files/80.png?v=1785152112&width=4000)
![[On sale July 7th at 10 PM] Jeremejevite Gacha (Limited to 10 stones) (Multi-purchase discount available)](http://store.karatz.jp/cdn/shop/files/73.png?v=1785110938&width=2268)
![[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_d807bfc6-59b6-481d-8d99-558a08a82376.png?v=1785464501&width=3000)
![[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)
![[On sale August 1 at 10 PM] Limited 10 Stones: Sapphire Gacha (including unheated cornflower blue sapphires, normally ¥69,800), with a bonus Sange sapphire. Multiple purchase discount available.](http://store.karatz.jp/cdn/shop/files/79.png?v=1785150857&width=4000)
![[7/ 22:00 Release] Limited to 15 Stones: Parasitic Peridot Gacha (Multiple Purchase Discount Available)](http://store.karatz.jp/cdn/shop/files/collage213.png?v=1785476632&width=4000)
![[Sale on July 7th at 10 PM] Limited to 12 stones! Blue Gem Gacha [Multiple Purchase Discount Available]](http://store.karatz.jp/cdn/shop/files/77_ede25372-0894-4b5d-ac9c-3b1ca2b56c4f.png?v=1785146266&width=4000)
![[Sale starts 10 PM JST 7/31] Colombian Pyrite and Mica in Emerald Loose Stone, 1.192ct, with Certificate](http://store.karatz.jp/cdn/shop/files/P7290666.jpg?v=1785318799&width=4000)
![[On sale July 31st, 10 PM JST] Sri Lankan Blue Sapphire 0.566ct Loose Stone with Japan-Germany Appraisal](http://store.karatz.jp/cdn/shop/files/P7290111.jpg?v=1785317006&width=4000)
![[On sale July 31, 10 PM JST] Madagascar Padparadscha Sapphire 3.5mm/0.234ct Loose Stone with Central Gemological Laboratory certificate](http://store.karatz.jp/cdn/shop/files/P7241821_3d99f4b3-9ee1-4f6f-9645-4f0508f4539e.jpg?v=1785297682&width=2997)
![[On Sale July 31, 10 PM JST] Afghanistan Green Hauyne 0.062ct Loose Gemstone with Certificate](http://store.karatz.jp/cdn/shop/files/P7242637_ebcf2ef2-a86e-4024-b7fa-1c8a4b4fbe10.jpg?v=1785297872&width=2341)
Benitoite 0.352ct loose
Sale price¥298,000
![[On sale 7/31 at 10 PM] Zambian Emerald 1.267ct Loose Stone with Appraisal](http://store.karatz.jp/cdn/shop/files/P7160402_c17360bf-50c0-430f-82f7-9184e42e9589.jpg?v=1785298095&width=2876)
![[On sale July 31, 10 PM] Zambian Emerald 1.112ct Loose Stone with Certificate](http://store.karatz.jp/cdn/shop/files/P7160361_d457fcc9-3412-4481-a128-8252a94900b2.jpg?v=1785298310&width=3011)
[Sales begin 7/31 10 PM JST] [Colorflee] K18WG Diamond 0.30ct Earrings
Sale price¥29,800
【8/1 22時販売載】【カラフリ】Pt850 ベネチアンチェーン ネックレス 約45cm スライドチェーン
Sale price¥39,800
![[22602674 Listed] [Karafuri] Pt900 Burma Ruby 1.07ct Ring](http://store.karatz.jp/cdn/shop/files/P7150919_0a730245-9a06-45aa-bef4-f965a45c63e2.jpg?v=1785331602&width=4000)
[22602674 Listed] [Karafuri] Pt900 Burma Ruby 1.07ct Ring
Sale price¥258,000
![[22602682 listed] [Colorful] Pt950/K18 Paraiba Tourmaline 0.11ct (CuO:2.7%, MnO:3.4%), Diamond 1.12ct Ring](http://store.karatz.jp/cdn/shop/files/P7151007_9bfd826b-8094-458e-ac74-221c5370e6b7.jpg?v=1785332059&width=4000)
[Posted on 12563995] Australian Black Opal 0.702 ct Loose Stone
Sale price¥29,800
![[Listed as 12563874] Afghanistan Green Hauyne 0.185ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P7237668_d9ec1e75-afd7-4495-8fae-411939fe4ae9.jpg?v=1785414042&width=2941)
[Listed as 12563874] Afghanistan Green Hauyne 0.185ct Loose Stone
Sale price¥65,800
【Published on 12563872】Brazilian Rubellite 0.285ct Loose Stone
Sale price¥15,800
![[Listed as 12563943] Colombian Trapiche Emerald 0.231ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/P7290201_07fd8309-0fbd-49a0-8dd8-e7bbf5a89211.jpg?v=1785394739&width=3055)
[Listed as 12563943] Colombian Trapiche Emerald 0.231ct Loose Gemstone
Sale price¥33,800
![[Posted as 12563944] Colombian Trapiche Emerald 0.252ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P7290225_be48afb9-fad5-4872-a4c5-10bf9b6d4153.jpg?v=1785394660&width=2985)
[Posted as 12563944] Colombian Trapiche Emerald 0.252ct Loose Stone
Sale price¥35,800
![[Listed as 12563838] Loose Golden Beryl from Brazil, 1.369ct](http://store.karatz.jp/cdn/shop/files/P7238405_06cfdaa4-274f-4d5b-a416-deeaa2d3d766.jpg?v=1785414448&width=2766)
[Listed as 12563838] Loose Golden Beryl from Brazil, 1.369ct
Sale price¥7,980
![[12563993] Cambodian Blue Zircon 3.546ct Loose](http://store.karatz.jp/cdn/shop/files/P7299425_d196c12c-294d-4aec-858d-496a5ed57faf.jpg?v=1785475642&width=2719)
[12563993] Cambodian Blue Zircon 3.546ct Loose
Sale price¥69,800
![[Listed as 12563997] 0.107ct Colombian Emerald Loose Stone](http://store.karatz.jp/cdn/shop/files/P7289225_f9c217d5-a49b-4897-94cf-8d660cafeacb.jpg?v=1785421262&width=2969)
[Listed as 12563997] 0.107ct Colombian Emerald Loose Stone
Sale price¥12,800
![[Posted 12563909] Colombian Pyrite and Mica in Emerald 0.271ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/P7290332.jpg?v=1785317716&width=4000)
[Lottery Sale 0521_08] Madagascar Sapphire 1.650ct Loose GIA
Sale price¥158,000
[Posted as 12563888] German Hauyne, 0.081ct Loose Gemstone
Sale price¥33,800
[Listed as 12563891] Namibian Jeremejevite 0.089ct Loose
Sale price¥22,800
Brazilian Dumortierite in Quartz 0.432ct Loose Stone
Sale price¥6,980
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.