List of products eligible for patches

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[Sakura Incut] Brazilian Blue Topaz 16mm/15.329ct Loose Patch

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[Dandelion cut] Pyrope almandine garnet 9.0mm/3.566ct loose stone

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【甲州貴石切子】ルチルクォーツ（ルチルレイテッドクォーツ） 2.270ctルースワッペン

[Koshu Precious Stones] Brazilian Pink Amethyst 3.71ct Loose Color "Collaboration" Patch

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【クローバーインカット】メキシコ産オパール 7mmルースワッペン付 - カラッツSTORE

[Clover in cut] Mexican opal 7mm/0,648ct {Collaboration} Loose patch

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[Koshu Precious Stones plusthree] Amethyst 4.306ct Loose Stone Patch

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【さくらインカット】ブラジル産ライモナイトインクォーツ（オーロラクォーツ） 11.3mm/3.760ct《コラボ》ルース　ワッペン

[Sakura Incut] Brazilian Limonite in Quartz (Aurora Quartz) 11.3mm/3.760ct {Collaboration} Loose Patch

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【さくらシェイプ】カンボジア産ブルージルコン 8mm/2.909ct《コラボ》ルースワッペン

[Sakura Shape] Cambodian Blue Zircon 8mm/2.909ct {Collaboration} Loose Patch

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[Sakura Shape] Tanzanite from Tanzania 6mm/0.889ct {Collaboration} Loose Patch

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【さくらインカット】ブラジル産レピドクロサイトインクォーツ 11mm/3.793ctルース

[Sakura Incut] Brazilian Lepidocrocite in Quartz 11mm/3.793ct Loose Stone

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【カメリアカット】ラベンダークォーツ（スコロライト） 1.704ctルース　ワッペン付

[Posted in 12549756] Lavender quartz (scorolite) 1.704ct loose

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[Koshu Precious Stones plusthree] Ametrine 7.238ct loose stone with patch

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Afghanistan Aragonite 15.380ct loose stone with patch

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[Sakura Incut] Smoky Quartz 22mm/27.511ct Loose Japanese-German Edition

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[Sakura Incut] Danburite 8.3mm/1.585ct loose with patch

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[Koshu Precious Stone Kiriko] Dumortierite in Quartz 10.068ct loose with emblem

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[Koshu Precious Stones Plusthree] Sky Blue Topaz 4.415ct Loose

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【甲州貴石切子】メキシコ産ファイアオパール 1.586ct《コラボ》ルースワッペン付

[Koshu Precious Stone Kiriko] Fire Opal from Mexico 1.586ct《Collaboration》 Loose with emblem

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【甲州貴石切子】《月型切子》アメトリン 12.681ct《コラボ》ルースワッペン付

[Koshu Precious Stone Kiriko]《Moon-shaped Kiriko》Ametrine 12.681ct《Collaboration》Loose Patch

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【甲州貴石切子plusthree】デンドリティッククォーツ 17.110ctルースワッペン付

[Koshu precious stone Kiriko plusthree] Dendritic quartz 17.110ct loose with patch

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[Dandelion cut] Imperial topaz 6.5mm/1.065ct loose

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[Fukasawa Agate Mushroom] Agate (agate) 24.906ct loose with patch

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[Fukasawa Agate Mushroom] Agate (agate) 28.751ct loose with patch

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【ダンデライオンカット】マンダリンガーネット 6.5mm/1.380ctルース《コラボ》ワッペン付

[Dandelion cut] Mandarin garnet 6.5mm/1.380ct loose "Collaboration" with emblem

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[Fukasawa Agate Mushroom] Agate 19.828ct loose with patch

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【ダンデライオンカット】カラーレススピネル 9.5mm/3.650ctルース日独オリジナル鑑＆ワッペン

[Dandelion Cut] Colorless Spinel 9.5mm/3.650ct Loose Japanese-German Dictionary & Patch

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【さくらインカット】オレゴンサンストーン 8mm/1.570ctルースワッペン付 - カラッツSTORE

[Sakura Incut] Oregon Sunstone 8mm/1.570ct Loose with Patch

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[Sakura Incut] Spinel 0.691ct loose

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【さくらインカット】グレースピネル 5.5mmルースワッペン付（プラチナスピネル） - カラッツSTORE

[Sakura Incut] Gray Spinel 5.5mm Loose with Patch (Platinum Spinel)

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【桔梗カット】ティンカーベルクォーツ 5.050ctルース《シミズ貴石代表・清水幸雄氏》

[Kikyo Cut] Tinker Bell Quartz 5.050ct Loose《Mr. Yukio Shimizu, Representative of Shimizu Precious Stones》 Patch included

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[Koshu Precious Stone Kiriko] Oregon Sunstone 2.330ct Loose with Patch

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【甲州貴石切子】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） 0.876ctルース

[Koshu Precious Stone Kiriko plusthree] Andesine Labradorite (commonly known as Rainbow Moonstone) 0.876ct loose

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[Kikyo cut] Oil-in quartz 4.010ct loose [Shimizu Precious Stone Representative Yukio Shimizu] Patch included

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【ダンデライオンカット】ラベンダータンザナイト6mmルース - カラッツSTORE

[Dandelion cut] Lavender tanzanite 6mm loose with patch

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[Koshu precious stone Kiriko plusthree] Pink zircon 1.480ct loose Subaru "Collaboration" with patch

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【さくらインカット】ピンクトルマリン 1.170ctルース - カラッツSTORE

[Sakura in-cut] Pink tourmaline 1.170ct loose with patch

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[Sakura Incut] Ametrine 15mm/9.820ct loose "Collaboration" with emblem

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[Sakura Incut] Tanzanite 1.07ct loose with patch

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【ダンデライオンカット】オレゴンサンストーン 9.01ct/14mmルース（6枚花びら） - カラッツSTORE

[Dandelion cut] Oregon sunstone 9.01ct/14mm loose (6 petals) with patch

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[Koshu Precious Stones Plusthree] Lavender Quartz (Scorolite) 1.761ct Loose Stone

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[Sakura Cut] Mongolian Andesine 8.0mm/1.652ct Loose Stone

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【ダンデライオンカット】モンゴル産カラーチェンジアンデシン 6.0mm/0.774ctルース

[Dandelion Cut] Mongolian Color-Change Andesine 6.0mm/0.774ct Loose Gemstone

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[Dandelion Cut] 7mm/1.412ct Sphene Loose Stone from Madagascar

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[Clover in cut] Emerald 9mm/2.498ct {Collaboration} Loose with patch

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[Koshu precious stone cutter pluethree] Colombian emerald 2.018ct loose

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【カメリアカット】ライモナイトインベリル 12mm/5.547ctルース《コラボ》ワッペン付

[Camellia cut] Limonite Inveryl 12mm/5.547ct loose "Collaboration" with patch

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[Sakura Incut] Sphene from Madagascar 6.0mm/0.865ct Loose Stone

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.