![Limited to 7 stones: Brazilian Limonite in Quartz, 1 loose stone (average 6 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_10790d8c-055f-404e-b91b-4dc8a6f1ff16.png?v=1756029326&width=2000)
【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
![[Limited to 4 stones] Synthetic moissanite 1 stone loose (rose cut, 5.0mm) [Discount available for multiple purchases]](http://store.karatz.jp/cdn/shop/files/P1260004.jpg?v=1706272442&width=4000)
【11/2 22時販売】タンザニア産アルマンディンガーネット 2.108ctルース
Sale price¥12,800
Brazilian rutilated quartz (rutile quartz) 12mm/7.140ct loose stone
Sale price¥8,800
Brazilian rutilated quartz (rutile quartz) 12mm/6.709ct loose stone
Sale price¥8,800
Brazilian Quartz 13.991ct Loose Patch
Sale price¥7,980
Tanzanian Rhodolite Garnet 10.608ct Loose Stone
Sale price¥79,800
Brazilian Paraiba Tourmaline in Quartz 2.827ct loose stone
Sale price¥45,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.284ct Loose Stone
Sale price¥19,800
Brazilian Paraiba Tourmaline in Quartz 1.146ct Loose Stone
Sale price¥25,800
Brazilian Paraiba Tourmaline in Quartz 8.0mm/1.287ct Loose Stone
Sale price¥25,800
Brazilian Medusa Quartz (Paraiba Quartz) 7.250ct Loose
Sale price¥45,800
【10/28 22時販売】【カラフリ】K18 ルチルクォーツ（ルチルレイテッドクォーツ）4.48ct エメラルド0.19ct リング 鑑別書
Sale price¥128,000
【10/28 22時販売】クォーツァイト 2.619ctルース
Sale price¥14,800
【10/28 22時販売】クォーツァイト 0.858ctルース
Sale price¥8,800
【10/28 22時販売】クォーツァイト 0.741ctルース
Sale price¥7,980
【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
Mozambique Almandine Garnet 1.144ct Loose Stone
Sale price¥15,800
[Item 12564459] Nepalese Kyanite 1.017ct Loose Gemstone
Sale price¥9,800
[Available 10/4, 10 PM] Lab-created Alexandrite 0.614ct Loose Stone
Sale price¥15,800
[Item 12563638] Tanzanian Bicolor Grossular Garnet 0.904ct Loose Stone
Sale price¥25,800
[12564313 listed] Spanish Pink Cobalt Calcite 0.360ct Loose Stone
Sale price¥25,800
[9/18 10 PM Sale] Brazilian Goshenite 4.3mm/0.376ct Loose Gemstone
Sale price¥6,980
[On sale 9/26 at 22:00] Mexican Cantera Opal 9.166ct loose gemstone
Sale price¥29,800
[Available 9/19 at 10 PM] Mexican Cantera Opal 24.256ct Loose Stone
Sale price¥69,800
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.