![Limited Edition of 11: Two Koshu Kiriko plusthree stones (average 18 carats) with one Dendritic Quartz Gacha (with one Copper Rutile in Quartz) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_3ad725c9-c6ee-4442-97de-622610f35fbb.png?v=1755304224&width=2000)
![[Available at 10 PM on August 2nd] {Limited to 8 sets} Gemstone Gacha 💎 1 of the Three Great Gemstones Gacha + 2 Loose Pink Sapphires {Multiple purchase discounts available}](http://store.karatz.jp/cdn/shop/files/collage_f0fdc31d-db26-47b4-87a8-0511945601c1.png?v=1754019019&width=2000)
【8/29 22時販売】モザンビーク産ピンクサファイア 0.169ctルース
Sale price¥6,980
【9/1 22時販売】マダガスカル産ブルーサファイア 0.374ctルース
Sale price¥9,800
Rough diamond (makeable) 0.353ct loose
Sale price¥25,800
Rough diamond (makeable) 0.279ct loose
Sale price¥25,800
【8/28 22時販売】パパラチアサファイア 3.5mm/0.220ctルース DGL鑑
Sale price¥34,800
【8/29 22時販売】コーンフラワーブルーサファイア 4.5mm/0.490ctルース AIGS
Sale price¥98,000
【8/28 22時販売】ピジョンブラッドルビー 0.280ctルース AIGS
Sale price¥49,800
【8/24 22時販売】コロンビア産ミントカラーエメラルド 4.1mm/0.244ctルース
Sale price¥8,800
【8/24 22時販売】コロンビア産ミントカラーエメラルド 4.3mm/0.306ctルース
Sale price¥8,800
【8/24 22時販売】ブラジル産ミントカラーエメラルド 5.5mm/0.638ctルース
Sale price¥8,800
【8/25 22時販売】ザンビア産エメラルド 0.166ctルース
Sale price¥8,800
Cornflower blue sapphire 0.530ct loose stone
Sale price¥128,000
Padparadscha sapphire 0.200ct loose
Sale price¥29,800
Bicolor sapphire 0.334ct loose
Sale price¥9,800
Bicolor sapphire 0.149ct loose
Sale price¥6,980
Bicolor sapphire 0.323ct loose
Sale price¥9,800
Diamond 0.054ct loose (VS class equivalent, emerald cut)
Sale price¥8,800
Colombian emerald cat's eye 0.112ct loose
Sale price¥9,800
Colombian emerald cat's eye 0.094ct loose
Sale price¥8,800
Colombian emerald cat's eye 0.093ct loose
Sale price¥8,800
White sapphire 0.537ct loose
Sale price¥15,800
White sapphire 0.464ct loose
Sale price¥9,800
White sapphire 0.418ct loose
Sale price¥12,800
Yellow sapphire 0.385ct loose
Sale price¥9,800
White sapphire 0.364ct loose
Sale price¥9,800
White sapphire 0.271ct loose
Sale price¥7,980
White sapphire 0.212ct loose
Sale price¥6,980
White sapphire 4.5mm/0.462ct loose
Sale price¥9,800
White sapphire 4.5mm/0.414ct loose
Sale price¥12,800
White sapphire 0.338ct loose
Sale price¥9,800
Opal 6.560ct loose
Sale price¥39,800
[Posted 12533051] Cantera Opal 8.970ct Loose
Sale price¥12,800
Cantera Opal 5.750ct loose
Sale price¥18,800
Ruby 0.213ct loose
Sale price¥7,980
[12532439 published] Hokkaido UV opal 11.900ct loose with patch
Sale price¥8,800
Opal 1.020ct loose
Sale price¥29,800
[Posted in 12530233] Canary Yellow Diamond (Treatment) 0.029ct Loose
Sale price¥5,980
Diamond 2.810ct rough stone
Sale price¥9,800
Colombian emerald cat's eye 0.417ct loose
Sale price¥39,800
[On sale at 10pm on August 19th] Sliced Trapiche Diamond 0.228ct Loose
Sale price¥18,800
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.
業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。
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.