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【12533686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） 4.178ctルース

Tinker Bell Quartz (Pink Fire Quartz) 4.178ct loose

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Tinker Bell Quartz (Pink Fire Quartz) 3.247ct loose

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Tinker Bell Quartz (Pink Fire Quartz) 3.968ct loose

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【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

Tinker Bell Quartz (Pink Fire Quartz) 4.764ct loose

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Star garnet 11.460ct loose (6 rows)

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Peach benitoite 0.132ct loose Japanese-German book (orange benitoite)

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Padparadscha sapphire 0.603ct loose medium treasure book

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Padparadscha sapphire 0.676ct loose medium treasure book

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Pigeon blood ruby 0.950ct loose AIGS

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Pigeon blood ruby 0.40ct loose AIGS

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Cornflower blue sapphire 0.470ct loose AIGS

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【12534192掲載】非加熱コーンフラワーブルーサファイア 0.460ctルース

Unheated cornflower blue sapphire 0.460ct loose AIGS

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Unheated Brazilian Paraiba tourmaline 0.170ct loose AIGS

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【12534194掲載】非加熱ブラジル産パライバトルマリン 0.190ctルース

Unheated Brazilian Paraiba tourmaline 0.190ct loose AIGS

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【12534202掲載】非加熱ブラジル産パライバトルマリン 0.110ctルース

Unheated Brazilian Paraiba tourmaline 0.110ct loose AIGS

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Sphene 5.810ct loose

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ブラジル産パライバトルマリン 0.027ctルース（CuO:3.0%、MnO:2.4%）

Brazilian Paraiba tourmaline 0.027ct loose (CuO:3.0%, MnO:2.4%)

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ブラジル産パライバトルマリン 0.030ctルース（CuO:2.7%、MnO:2.8%）

Brazilian Paraiba tourmaline 0.030ct loose (CuO:2.7%, MnO:2.8%)

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ブラジル産パライバトルマリン 0.033ctルース（CuO:2.7%、MnO:2.4%）

Paraiba tourmaline from Brazil 0.033ct loose (CuO:2.7%, MnO:2.4%)

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ブラジル産パライバトルマリン 0.042ctルース（CuO:2.5%、MnO:2.4%）

Brazilian Paraiba tourmaline 0.042ct loose (CuO:2.5%, MnO:2.4%)

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Paraiba tourmaline from Brazil 0.048ct loose (CuO:1.7%, MnO:1.7%)

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ブラジル産パライバトルマリン 0.051ctルース（CuO:2.0%、MnO:2.0%）

Paraiba tourmaline from Brazil 0.051ct loose (CuO:2.0%, MnO:2.0%)

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ブラジル産パライバトルマリン 0.125ctルース（CuO:2.5%、MnO:3.0%）

Paraiba tourmaline from Brazil 0.125ct loose (CuO:2.5%, MnO:3.0%)

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

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

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Paracytic peridot 0.181ct loose

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【甲州貴石切子】アンデシン・ラブラドライト（通称名ブルームーンストーン） 1.970ctルースワッペン付

[Koshu Precious Stone Kiriko] Andesine Labradorite (commonly known as Blue Moonstone) 1.970ct loose with emblem

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[Koshu Precious Stone Kiriko] Purple Scapolite 5.450ct Loose with Patch

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【甲州貴石切子】イエロースキャポライト（UVタイプ） 4.880ctルースワッペン付

[Koshu Precious Stone Kiriko] Yellow Scapolite (UV type) 4.880ct loose with patch

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[Koshu Precious Stone Kiriko] Blue Topaz 27.540ct Loose with Patch

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[Koshu Precious Stone Kiriko] Bicolor Amethyst 14.320ct Loose with Patch

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【桔梗カット】ロッククリスタル 15.750ctルース《シミズ貴石代表・清水幸雄氏》ワッペン付

[Kikyo Cut] Rock Crystal 15.750ct Loose《Mr. Yukio Shimizu, Representative of Shimizu Precious Stones》 Patch included

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【桔梗カット】ロッククリスタル 19.590ctルース《シミズ貴石代表・清水幸雄氏》ワッペン付

[Kikyo Cut] Rock Crystal 19.590ct Loose (Mr. Yukio Shimizu, Representative of Shimizu Precious Stones) Patch Included

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[Kikyo Cut] Green Quartz 6.550ct Loose《Mr. Yukio Shimizu, Representative of Shimizu Precious Stones》 Patch included

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[Kikyo Cut] Citrine 7.620ct Loose《Mr. Yukio Shimizu, Representative of Shimizu Precious Stones》 Patch included

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【桔梗カット】アイリスクォーツ 31.670ct《シミズ貴石代表・清水幸雄氏》ワッペン付

[Kikyou Cut] Iris Quartz 31.670ct《Mr. Yukio Shimizu, Representative of Shimizu Precious Stones》 Patch included

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

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[Dandelion Cut] Fire Opal 7mm Loose with Patch

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[Dandelion cut] Fire opal 7mm loose with patch

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Let's try the gem mining experience "Do-it-yourself gem excavation experience set" 《7 types of gems》

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ブラジル産パライバトルマリン 0.173ctルース（CuO:2.1%、Mn:2.1%）

Paraiba tourmaline from Brazil 0.173ct loose (CuO:2.1%, Mn:2.1%)

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宝石研磨に挑戦してみよう「自分で出来る原石磨きセット」（初心者向け：ネオンブルーアパタイト）

Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for beginners: neon blue apatite)

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[Kikyou cut] Pink amethyst 5.470ct loose with patch

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Unheated ruby from Mozambique 0.240ct loose GIA

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Unheated ruby from Mozambique 0.30ct loose GIA

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Unheated ruby from Mozambique 0.270ct loose GIA

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Unheated star ruby from Vietnam 1.490ct loose GIA

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.