![[Available from 10/22] <<limited to stones>> Tanzanian Winza Sapphire, Avg. 0.47ct <<multi-purchase discount available>></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/collage_3491990c-c886-4740-824c-edc3c5228775.png?v=1792227669&width=2000)
[Available from 10/22] <> Tanzanian Winza Sapphire, Avg. 0.47ct <>
Sale price¥7,980
![[Available 10/12 at 10 PM] 《Limited to 1 stone》 FANCY LIGHT PINK 2.9mm/0.092ct FANCY Color Pink Diamond (Sorting report included) 《Multi-buy discount available》](http://store.karatz.jp/cdn/shop/files/2026-10-1717.21.50_b5bd12df-a26a-4558-b937-050e8f74386f.png?v=1792225381&width=1256)
【10/23 22時販売】《限定2石》クォーツアイトガチャ1石ルース（ローズカット、5.5～6.1ｍｍ、サンジェ氏）《複数購入割引有》
Sale price¥5,980
【10/23 22時販売】《限定3石》クォーツアイトガチャ1石ルース（カスタムカット、4.7～4.9ｍｍ、サンジェ氏）《複数購入割引有》
Sale price¥3,980
【10/24 22時販売】《限定3石》アイスブルージルコン（ラウンドカット3.3ｍｍ、サンジェ氏）《複数購入割引有》
Sale price¥4,580
【10/24 22時販売】《限定3石》アイスブルージルコン（ラウンドカット2.7～2.9ｍｍ、サンジェ氏）《複数購入割引有》
Sale price¥3,980
【10/25 22時販売】《限定7セット》タンザニア産ミントダイオプサイド2石セット（原石＆訳ありルース）《複数購入割引有》
Sale price¥5,980
![[Available 10/30 (Fri) at 10:00 PM] Sakura Wars × KARATZ Collaboration: 30th Anniversary Sakura Shinguji "Spirit Sword: Arataka"](http://store.karatz.jp/cdn/shop/files/sub9.png?v=1792135107&width=1215)
![[On Sale Oct. 30 (Fri) at 10 PM] "Sakura Wars" × KARATZ Collaboration: 30th Anniversary Sakura Shinguji Model Ring](http://store.karatz.jp/cdn/shop/files/sub13.png?v=1792134030&width=1448)
![[On sale August 13th, 10 PM JST] Limited to 10 stones: Top-quality Benitoite (2mm, round cut) loose stone [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/PC080074_50a7da98-e5da-4a97-bdb2-a97224e584da.jpg?v=1715001409&width=3569)
Colombian emerald loose stone 0.167ct
Sale price¥22,800
![[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)
[Ref: 12564456] Mozambique Aquamarine 0.837ct Loose Stone
Sale price¥9,800
[Item 12564468] Australian Black Opal 0.306ct Loose Stone
Sale price¥25,800
[Item 12564632] Pakistani Vanadium Sphene 1.579ct Loose Gemstone
Sale price¥69,800
[Item 12564642] Colombian Trapiche Emerald 1.036ct Loose Stone
Sale price¥69,800
[Item 12564727] Tanzanite from Tanzania, 0.956ct Loose Stone
Sale price¥19,800
[Item 12564726] Tanzanian Tanzanite 0.827ct Loose Stone
Sale price¥18,800
[Ref: 12564725] Tanzanite from Tanzania, 0.892ct loose stone
Sale price¥18,800
[12565160] Tsavorite from Kenya, 0.439ct loose stone
Sale price¥29,800
[12565159] Tsavorite from Kenya, 0.314ct loose stone
Sale price¥18,800
[Item 12565148] Ruby 0.552ct Loose Stone
Sale price¥14,800
[Item 22602848] K14WG Akoya Pearl Earrings with Identification Report
Sale price¥19,800
[Item No. 22602835] K18 Akoya Pearl Earrings with Appraisal Certificate
Sale price¥22,800
[Item 12564407] Stibiotantalite from Afghanistan, 0.200ct loose stone
Sale price¥45,800
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.