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Sold out マダガスカル産スフェーン 0.935ctルース
Sold out Limited to 3 stones: One loose Brazilian Elestial Amethyst (3.5-3.9mm) [Multiple purchase discounts available]
Sold out Limited to 4 stones: Sri Lankan Rhodolite Garnet (4mm, Round Cut) - 1 loose stone (Multiple purchase discounts available)
Sold out Limited to 6 stones: One loose, oil-free emerald from Russia (3.2mm, round cut) [Multiple purchase discounts available]
Sold out One loose, oil-free emerald from Russia (2.8mm, round cut) (Multiple purchase discounts available)
Sold out Garnet Gacha Loose Stone with Two Koshu Cut Precious Stones (Multiple Purchase Discounts Available)
Sold out [Available at 10 PM on March 8th] [New Arrival in Tucson - Limited to 4 Stones] Canadian Eudialite, Approx. 2.5mm [Multiple Purchase Discounts Available]
Sold out [On Sale April 4th at 10 PM] Limited to 3 Stones: Yunnan Cinnabar Loose Stone (Average 1.55 ct, all stones with a gemological report) - Multiple Purchase Discount Available
Sold out [Sale on April 18, 10 PM JST] Gem Gacha: Koshu Kishikikko plusthree "Akatsuki" Ametrine (Limited 10 Stones) (Multiple Purchase Discount Available)
Sold out 【宝石商の道具】加熱処理のエチオピア産オパール 1石(ブラックオパールとの見分けシート付) - カラッツSTORE
Sold out 【さくらインカット】オレゴンサンストーン 1.55ctルース - カラッツSTORE
Sold out 【ダンデライオンカット】シトリン 5.58ctルース(ライトカラー) - カラッツSTORE
Sold out Bicolor tanzanite 2.270ct loose
Sold out 【12525545掲載】アルマンディンガーネットキャッツアイ 1.820ctルース
Sold out 【カラフリ】K18レピドクロサイトインクォーツ2.37ct・ダイヤモンドリング - カラッツSTORE
Sold out 【カメリアカット】レモンクォーツ8mmルース 直筆サイン付&ワッペン付 - カラッツSTORE
Sold out ベニトアイト1石(プリンセスカット,2.2mm)
Sold out ティンカーベルクォーツ(ピンクファイヤークォーツ) 3.968ctルース
Sold out 【12533788掲載】ティンカーベルクォーツ(ピンクファイヤークォーツ) 4.764ctルース
Sold out 【ダンデライオンカット】メキシコ産ファイアオパール 7mm《コラボ》ルース ワッペン付
Sold out Yuichiro Abe goods set [sticker & waterproof smartphone case]
Sold out 安部祐一朗氏グッズセット【キャンバス&アクルルキーホルダー&オレゴンサンストーンの宝石】
Sold out Yuichiro Abe goods set [clutch bag & acrylic key chain]
Sold out 【甲州貴石切子plusthree】ロッククリスタル 15.588ct《切子玉》ルース ワッペン付
Sold out 【5/24 22時販売】リボンの騎士×KARATZコラボ◆連載開始70周年記念ジュエリー◆ネックレス - カラッツSTORE
Sold out オーストラリア産ボルダーオパール 52.582ctルース
Sold out ブラジル産パライバトルマリン 0.240ctルース
Sold out Limited to 6 stones: 1 topaz rough stone (November birthstone) Multiple purchase discounts available
Sold out マダガスカル産ベキリーブルーガーネット(カラーチェンジガーネット) 0.352ctルース
Sold out Limited to 9 stones: 1 Brazilian Alexandrite loose stone (rose cut, 3mm/average 0.105ct) Multiple purchase discounts available

KARATZ Custom Made

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.

KARATZ・Five Commitments

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.