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Sold out 1 rose cut diamond (VS-SI class equivalent, 3.0mm)《Multiple purchase discount available》
Sold out バロックオパール 2石 - KARATZ STORE|カラッツSTORE
Sold out Limited Edition of 10 Bicolor Gacha! 💎 Includes two Zimbabwean euclase stones (average 0.088ct), a 1.03ct bicolor sapphire, a bicolor chrysoberyl, and more. Discounts available for multiple purchases.
Sold out Mini Kite Cut Loose Stone (Includes 2 Paraiba Tourmalines, Green Beryl, Ruby, Peridot, etc.) {Multiple Purchase Discounts Available}
Sold out [Limited to 6 stones] [Mr. Sanjay] Mexican opal or Sri Lankan spinel 1 loose stone (with defects) [Multiple purchase discount available]
Sold out Gem Gacha💎1 special fluorescent diamond (VS-SI class equivalent, 2.0mm)
Sold out [On Sale 12/19 at 10 PM] [Only 3 left] Fancy or Fancy Intense pink diamond melee (1.0mm, round cut) [Multiple purchase discounts available]
Sold out [12/19 10 PM Sale] [Limited to 10 Stones] Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More Bicolor Gacha 💎 Single Loose Stone [Multiple Purchase Discounts Available]
Sold out [On sale November 8th at 10pm] Limited to 9 stones: Carving Gacha (Opal, Tourmaline, Tsavorite Garnet) 1 loose stone [Multiple purchase discounts available]
Sold out Limited to 10 stones: Greenland Ruby (2mm, with certificate issued by the mine owner) - 1 loose stone - Multiple purchase discounts available
Sold out Color Change Gacha💎 Burmese Color Change Zircon, Color Shift Sapphire, Color Shift Cobalt Spinel, and More (Multiple Purchase Discounts Available)
Sold out Greenland Ruby Loose (approx. 2.3mm, Top Color, Certificate Included) (Multiple Purchase Discounts Available)
Sold out Limited to 8 stones: 1 Sri Lankan star sapphire loose stone (5mm, round cabochon cut) Multiple purchase discounts available
Sold out Limited to 7 stones! May birthstone special offer! Colombian emerald cat's eye, 1 loose stone (highly transparent cat's eye) Multiple purchase discounts available
Sold out [Limited to 7 stones] Gem gacha💎 Australian opal or Mexican cantera opal 1 loose stone (with defects) [Multiple purchase discount available]
Sold out Limited to 5 stones: 1 Mexican Hyalite Opal loose stone (average 0.5ct) Multiple purchase discounts available
Sold out Limited to 9 stones: 1 London Blue Diamond Loose (VS-SI class equivalent, 2.0mm) Multiple purchase discounts available
Sold out Limited to 7 stones: 1 loose kyanite stone from Nepal (royal blue color, 4mm, round cut) Multiple purchase discounts available
Sold out Fire Opal (Common Opal) 2 stone set《Discount available for multiple purchases》
Sold out [On sale at 10 PM on November 24th] [Limited to 7 stones] Sri Lankan Star Sapphire (Loose) [Multiple purchase discounts available]
Sold out One loose, oil-free emerald from Russia (2.2mm, round cut) (Multiple purchase discounts available)
Sold out [On sale at 10 PM on December 20th] [Limited to 11 stones] Diamond Gacha including VVS/4mm, VS/3mm, etc. worth ¥40,000 [Multiple purchase discounts available]
Sold out One loose, oil-free emerald from Russia (2.8mm, round cut) (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 グリーンランド産アイスルビー 1石(ハートシェイプ,4mm)
Sold out [Available at 10 PM on December 20th] Limited Edition of 7 Montana Sapphires (Rock Creek Mine) Gacha (Pear Shape, Approx. 5 x 3mm) [Multiple Purchase Discounts Available]
Sold out [On sale 11/29 at 10 PM] [Limited to 10 stones] Diamond Gacha including 3.2mm/F/VVS-1/EXCELLENT (H&C) [Multiple purchase discounts available]
Sold out Limited to 2 stones: 1 Australian opal loose stone (pear cut) Multiple purchase discounts available
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 【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 【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 【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 ピンクサファイア 0.881ctルース
Sold out オパール 0.595ctルース
Sold out [12/7 22:00] Sri Lankan Yellow Sapphire 0.508ct Loose
Sold out オーストラリア産ボルダーオパール 1.730ctルース
Sold out [12/22 22:00] Australian Black Opal 0.623ct Loose
Sold out [12/19 22:00 Sale] Madagascar Bicolor Sapphire 4.5mm/0.637ct Loose
Sold out [12/19 22:00 Sale] Madagascar Bicolor Sapphire 3.6mm/0.232ct Loose
Sold out K18YGコロンビア産エメラルド0.062ct・ダイヤモンドリング
Sold out アマゾン産グリーンオパール 1.120ctルース
Sold out ミャンマー産トラピッチェルビー 0.179ct原石
Sold out 【12545153掲載】ミャンマー産トラピッチェルビー 0.160ct原石
Sold out オーストラリア産エメラルド 0.320ctルース
Sold out マダガスカル産ホットピンクサファイア 1.120ctルース
Sold out ミャンマー産非加熱ルビー 0.433ctルース
Sold out オーストラリア産ボルダーオパール 4.729ctルース
Sold out 【KEN氏】メキシコ産ファイアオパール 1.150ctルース

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.