Width: 4.1 - 5.0mm

Brazilian Dumortierite in Quartz 0.652ct loose stone (faceted cut) Sale price¥9,800

Brazilian Dumortierite in Quartz 0.313ct loose stone (faceted cut) Sale price¥6,980

Brazilian Green Spodumene 0.599ct Loose Stone Sale price¥4,980

Sri Lankan Yellow Sapphire 0.318ct Loose Sale price¥15,800

Sri Lankan Yellow Sapphire 0.349ct Loose Sale price¥15,800

Oregon Sunstone from the United States 0.276ct loose stone Sale price¥7,980

Mali Garnet (Grossular/Andradite Garnet) 4.2mm/0.374ct Loose Stone with Certificate of Authenticity Sale price¥9,800

[On sale from 22:00 on 5/1] Mali Garnet (Grossular/Andradite Garnet) 4.2mm/0.398ct Loose Stone with Certificate of Authenticity from the Republic of Mali Sale price¥9,800

Mali Garnet (Grossular/Andradite Garnet) 4.2mm/0.457ct Loose Stone with Certificate of Authenticity Sale price¥9,800

Mexican Hyalite Opal 4.9mm/0.348ct Loose Sale price¥12,800

Mexican Hyalite Opal 4.8mm/0.304ct Loose Stone Sale price¥9,800

Mexican Hyalite Opal 5.0mm/0.378ct Loose Stone Sale price¥11,000

Indian Moss Agate 0.387ct Loose Stone Sale price¥8,800

Indian Moss Agate 0.601ct Loose Stone Sale price¥8,800

Indian Moss Agate 0.301ct Loose Stone (Princess Cut) Sale price¥6,980

Brazilian pyrope almandine garnet 0.925ct loose stone Sale price¥9,800

Brazilian Aquamarine 0.546ct Loose Stone Sale price¥8,800

Brazilian Aquamarine 0.499ct Loose Stone Sale price¥7,980

Brazilian Dumortierite in Quartz 0.368ct loose stone Sale price¥12,800

Sri Lankan Brown Zircon 1.121ct Loose Stone Sale price¥12,800

Sri Lankan Green Zircon 4.6mm/0.543ct Loose Stone Sale price¥8,800

Brazilian Madeira Citrine 0.867ct Loose Stone Sale price¥9,800

Brazilian Madeira Citrine 0.602ct Loose Stone Sale price¥8,800

Brazilian Madeira Citrine 0.672ct Loose Stone Sale price¥6,980

Brazilian Madeira Citrine 4.7mm/0.414ct Loose Stone Sale price¥8,800

Brazilian Madeira Citrine 0.489ct Loose Stone Sale price¥7,980

Spanish Andalusite 0.478ct loose stone Sale price¥6,980

Spanish Andalusite 0.371ct loose stone Sale price¥6,980

Spanish Andalusite 0.674ct loose stone Sale price¥8,800

Spanish Andalusite 0.394ct loose stone Sale price¥8,800

Tanzanian Rhodolite Garnet 0.627ct Loose Stone Sale price¥8,800

Sunstone 0.418ct loose stone Sale price¥5,980

Australian Rainbow Lattice Sunstone 0.590ct Loose Sale price¥12,800

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） 0.568ctルース

Andesine Labradorite (commonly known as Rainbow Moonstone) 0.568ct loose Sale price¥12,800

Pakistani Lazurite (Azurite) 4.1mm/0.318ct Loose Stone Sale price¥59,800

Mexican fire opal (faceted cut) 0.387ct loose stone Sale price¥14,800

Madagascar Blue Sapphire (Ice Blue) 0.584ct Loose Sale price¥19,800

Cambodian colorless zircon 0.707ct loose stone Sale price¥8,800

Cambodian colorless zircon 0.749ct loose stone Sale price¥8,800

Purple Apatite 0.896ct Loose Stone with Certificate of Authenticity Sale price¥11,000

Purple Apatite 0.993ct Loose Stone with Certificate of Authenticity Sale price¥9,800

Purple Apatite 0.769ct Loose Stone with Certificate of Authenticity Sale price¥8,800

Tanzanite from Tanzania 4.9mm/0.531ct loose stone Sale price¥12,800

Tanzanite from Tanzania 4.7mm/0.503ct loose stone Sale price¥14,800

イエローダイヤモンド（H&C） 0.313ctルース(UNDER N(VERY LIGHT YELLOW), VVS-2, Excellent H&C)

Yellow Diamond (H&C) 4.3mm/0.313ct Loose (VERY LIGHT YELLOW), VVS-2, Excellent H&C) Sale price¥39,800

イエローダイヤモンド 0.390ctルース(UNDER S(LIGHT YELLOW), VVS1, 3Excellent H&C)

Yellow Diamond 4.7mm/0.390ct Loose (LIGHT YELLOW, VVS1, 3Excellent H&C) Sale price¥49,800

Myanmar Leuco Garnet 0.504ct Loose Stone JTL Catalog Sale price¥39,800

Ethiopian Sunstone 5.1mm/0.468ct Loose Sale price¥9,800

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.