Custom Cut

[12561387] Tanzanian Almandine Garnet 0.750ct Loose Stone Sale price¥9,800

[12561386] Tanzanian Almandine Garnet 0.993ct Loose Stone Sale price¥12,800

[11/18 22:00 Sale] Australian Prehnite 1.705ct Loose Stone Sale price¥9,800

GGG (Gadolium Gallium Garnet) 0.675ct Loose Stone Sale price¥8,800

Synthetic rutile 1.490ct loose stone Sale price¥15,800

[11/16 22:00 Sale] Synthetic Rutile 1.407ct Loose Stone Sale price¥18,800

[11/16 22:00 Sale] Synthetic Rutile 1.020ct Loose Stone Sale price¥18,800

[11/17 22:00 Sale] Sri Lankan Green Zircon 0.734ct Loose Sale price¥12,800

[11/22 22:00] Sri Lankan Hessonite Garnet 1.968ct Loose Stone Sale price¥12,800

[11/14 22:00 Sale] Brazilian Rose Amethyst 0.793ct Loose Stone Sale price¥15,800

[11/14 22:00 Sale] [Cat Cut] Brazilian White Chalcedony 0.707ct Loose Stone Sale price¥8,800

Rainbow Garnet (Andradite Garnet) 0.732ct Loose Stone from Tenkawa Village, Nara Prefecture Sale price¥5,980

[11/22 22:00] Tanzanian Rhodolite Garnet 0.843ct Loose Stone Sale price¥9,800

[On Sale 11/22 10pm] Tanzanian Rhodolite Garnet 5.3mm/0.903ct Loose Stone Sale price¥9,800

[11/2 22:00] American Peridot 0.283ct Loose Stone Sale price¥8,800

[11/2 22:00] Tanzanian Sunstone 1.355ct Loose Stone Sale price¥8,800

[On Sale 11/2 at 10 PM] Tanzanian Sunstone (Illusion Sunstone) 0.777ct Loose Stone Sale price¥12,800

[11/2 22:00] Brazilian Dumortierite in Quartz 2.074ct Loose Stone Sale price¥25,800

[On Sale 11/2 at 10 PM] Mexican Opal 0.233ct Loose (Faceted) Sale price¥12,800

[On sale 11/14 at 10pm] 0.095ct Moldavite Loose Stone from the former Czechoslovakia Sale price¥8,800

Brazilian citrine 1.125ct loose stone Sale price¥9,800

[11/18 22:00 Sale] Brazilian Citrine 1.962ct Loose Stone Sale price¥9,800

Brazilian citrine 1.659ct loose stone Sale price¥9,800

Brazilian citrine 1.644ct loose stone Sale price¥9,800

[11/1 22:00 Sale] Brazilian Elestial Amethyst 0.762ct Loose Stone Sale price¥8,800

[11/1 22:00 Sale] Zimbabwean Bicolor Euclase 0.398ct Loose Stone Sale price¥39,800

[11/18 22:00] Brazilian Dumortierite in Quartz 1.414ct Loose Stone Sale price¥12,800

Oregon Sunstone from the United States, 0.478ct loose stone Sale price¥8,800

0.903ct loose labradorite from Madagascar Sale price¥9,800

[11/13 22:00 Sale] Rhodolite Garnet 0.913ct Loose Stone Sale price¥12,800

Mexican Fire Opal 5.8mm/0.345ct Loose Stone Sale price¥12,800

Mexican Fire Opal 4.8mm/0.199ct Loose Stone Sale price¥8,800

Tibetan Andesine 0.768ct Loose Stone Sale price¥12,800

Tanzanian mint diopside 0.364ct loose stone Sale price¥9,800

Brazilian Kasharai Amethyst 5.6mm/0.460ct Loose Stone Sale price¥8,800

[11/18 22:00] Oregon Sunstone from the United States, 0.386ct Loose Sale price¥24,800

Brazilian Amethyst 5.883ct Loose Stone Sale price¥9,800

Pakistani Ludwigite Peridot 0.615ct Loose Stone Sale price¥7,980

2.472ct loose Larimar from the Dominican Republic Sale price¥6,980

2.568ct loose Larimar from the Dominican Republic Sale price¥8,800

Brazilian Color-Shifting Amethyst 0.849ct Loose Stone Sale price¥8,800

Brazilian Morganite 0.484ct loose stone Sale price¥12,800

Australian Prehnite 1.758ct loose stone Sale price¥9,800

Sri Lankan Peristerite 0.272ct Loose Stone Sale price¥11,000

インド産アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.450ctルース

Indian Andesine Labradorite (also known as Rainbow Moonstone) 0.450ct Loose Stone Sale price¥9,800

[12549595 published] Goshenite 1.080ct loose Sale price¥8,800

Brazilian Aquamarine 8.858ct Loose Stone Sale price¥198,000

Mexican Cantera Opal 14.690ct Loose Sale price¥12,800

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.