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Sold out ピンクトルマリン 0.377ctルース
Sold out マダガスカル産モンテブラサイト 0.366ctルース
Sold out オーストラリア産ボルダーオパール 1.026ctルース
coming soon [Sales start at 10 PM on Friday, December 12th] TV anime "Date A Live V" x KARATZ collaboration foil-stamped glitter can badges (8 types in total)
Sold out 【KEN氏】アンダリュサイト 2.958ctルース - カラッツSTORE
Sold out 【KEN氏】アンダリュサイト 2.077ctルース - カラッツSTORE
Sold out デンドリティックアゲート 4.377ctルース
Sold out デンドリティックアゲート 3.082ctルース
Sold out ラブラドライト 38.270ctルース
Sold out レインボースキャポライト 3mm/0.101ctルース(ローズカット)
Sold out 【サンジェ氏】パープルスピネル 0.542ctルース
Sold out ダイヤモンド 0.210ct原石
Sold out アフガニスタン産ラズライトインソーダライト 0.195ctルース
Sold out スリランカ産イエローサファイア 0.481ctルース
Sold out デンドリティックメノウ 1.800ctルース
Sold out Brazilian bicolor tourmaline 0.910ct loose stone
Sold out マダガスカル産アンデシン・ラブラドライト(通称名 レインボームーンストーン) 0.790ctルース
Sold out Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.265ct loose stone
Sold out 【KEN氏】アンデシン 5.2mm/0.479ctルース - カラッツSTORE
Sold out アンデシン・ラブラドライト(通称名 レインボームーンストーン) 0.673ctルース
Sold out アンデシン・ラブラドライト(通称名 レインボームーンストーン) 0.339ctルース
Sold out 【KEN氏】トルマリンキャッツアイ 0.810ctルース - カラッツSTORE
Sold out オパール 1.382ctルース
Sold out Limited to 2 stones Mosaic opal 1 loose stone Multiple purchase discount available
Sold out [Limited to 8 stones] Jam Gacha💎 1 Rainbow Garnet stone (January birthstone) from Tenkawa Village, Nara Prefecture [Multiple purchase discounts available]
Sold out Limited quantity: Mozambique grape garnet, 1 loose stone (4 x 6 mm, pear-shaped cut) Multiple purchase discounts available
Sold out Limited to 5 stones: 1 Indian Iolite Sunstone (impregnated) loose stone (average 6.6 carats, cabochon cut) Multiple purchase discounts available
Sold out Limited to 15 stones Apatite Gacha💎 Zimbabwean apatite, purple apatite, etc. 1 loose stone (with defects) Multiple purchase discounts available
Sold out Limited to 9 stones: 1 colorless apatite loose stone from Madagascar (average 0.30ct, many inclusions) Multiple purchase discounts available
Sold out Limited to 5 stones: 1 colorless apatite loose stone from Madagascar (all stones come with identification certificate, average 0.40ct) Discounts for multiple purchases available
Sold out デンドリティックアゲート 68.090ctルース
Sold out Limited to 6 stones: 1 loose sphene stone from Madagascar (round cut, 4mm) Multiple purchase discounts available
Sold out デンドリティッククォーツ 1.547ctルース
Sold out ガーデンクォーツ 6.760ctルース
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 2 stones: 1 Australian opal loose stone (pear cut) Multiple purchase discounts available
Sold out Limited to 7 stones: 1 Hokkaido rhodochrosite loose stone (4mm, rose cut) Multiple purchase discounts available
Sold out Brazilian Dendritic Quartz 1.206ct Loose Stone
Sold out Limited to 5 stones: 1 Mexican Hyalite Opal loose stone (average 0.5ct) Multiple purchase discounts available
Sold out デンドリティッククォーツ 2.165ctルース
Sold out デンドリティッククォーツ 1.710ctルース
Sold out タンザニア産バイカラーサファイア 0.970ctルース(ウィンザーサファイア)
Sold out 【12530986掲載】デンドリティッククォーツ 4.480ctルース
Sold out 【12529747掲載】スフェーン 0.570ctルース
Sold out タンザニア産バイカラーサファイア 1.20ctルース(ウィンザーサファイア)
Sold out Limited to 21 stones: 1 loose stone of Spanish sphalerite (faceted cut, average 0.60ct) Multiple purchase discounts available
Sold out Limited to 5 stones: 1 Brazilian Alexandrite loose stone (round cut, 1.3mm) Multiple purchase discounts available
Sold out Brazilian unheated Imperial Topaz 1 stone loose stone {Multiple purchase discount 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.