Red/red system

An impressive red gemstone that hides gorgeousness and strength. Typical examples include ruby, red diamond, red spinel, almandine garnet, rubellite, red beryl, and blood red coral, but there are many others. Many have a pinkish or orange tinge, and even if you say red, the impression varies depending on the gemstone.

Karatz GemMagazine
" 10 Red Jewels "

[On sale at 10pm on January 29th] 0.258ct loose ruby Sale price¥12,800

【1/31 22時販売】アメリカ産アントヒルガーネット 5.0mm/0.641ctルース Sale price¥15,800

【1/31 22時販売】アメリカ産アントヒルガーネット 4.0mm/0.277ctルース Sale price¥6,980

【1/31 22時販売】アメリカ産オレゴンサンストーン 1.640ctルース Sale price¥16,800

[On Sale at 10 PM on January 20th] Sri Lankan Star Ruby 5.0mm/1.062ct Loose Stone with Certificate of Authenticity Sale price¥39,800

[On Sale at 10 PM on January 12th] Mozambique Ruby 0.481ct Loose Stone with Certificate of Authenticity Sale price¥39,800

[On Sale at 10 PM on January 11th] Mozambique Ruby 0.544ct Loose Stone with Certificate of Authenticity Sale price¥39,800

Pigeon Blood Ruby 0.170ct Loose Stone AIGS Sale price¥39,800

Pigeon Blood Ruby 5.0mm/0.580ct Loose Stone AIGS Sale price¥128,000

Canadian Ammolite 17.043ct Loose Stone Sale price¥49,800

Mexican Fire Agate 10.683ct Loose Stone Sale price¥59,800

[12/7 22:00] Brazilian Rubellite 0.332ct Loose Stone Sale price¥12,800

[12/6 22:00] Mexican Fire Agate 17.936ct Loose Stone Sale price¥49,800

[12/6 22:00] Myanmar Spinel in Marble 61.204ct Loose Stone Sale price¥12,800

[Available at 10 PM on January 19th] [Dandelion Cut] Tibetan Color-Change Andesine 8.0mm/1.883ct Loose Stone Sale price¥59,800

[Available at 10 PM on January 5th] [Dandelion Cut] Tibetan Andesine 6.0mm/0.814ct Loose Stone Sale price¥49,800

[Available at 10 PM on January 5th] [Dandelion Cut] Tibetan Bicolor Andesine 6.0mm/0.791ct Loose Stone (Color Change Type) Sale price¥49,800

Mozambique ruby 0.537ct loose stone Sale price¥15,800

Red coral (coral) 1.406ct loose stone Sale price¥12,800

Red coral (coral) 6.833ct loose stone Sale price¥39,800

Greenland Ruby 0.253ct Loose Stone with Certificate Sale price¥49,800

Greenland Ruby 0.266ct Loose Stone with Certificate Sale price¥22,800

Tanzanian Almandine Garnet 2.697ct Loose Stone Sale price¥18,800

Tanzanian Almandine Garnet 1.282ct Loose Stone Sale price¥13,800

Tanzanian Almandine Garnet 0.998ct Loose Stone Sale price¥8,800

Tanzanian Almandine Garnet 0.930ct Loose Stone Sale price¥9,800

Tanzanian Almandine Garnet 0.902ct Loose Stone Sale price¥12,800

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

Tanzanian Almandine Garnet 0.885ct Loose Stone Sale price¥8,800

Sri Lankan pink zircon 1.991ct loose stone Sale price¥29,800

American oil-free red beryl 2.5mm/0.050ct loose GIA Sale price¥59,800

Mozambique Ruby 3.4mm/0.139ct Loose Stone Sale price¥25,800

Tanzanian Almandine Garnet 11.0mm/6.787ct Loose Stone Sale price¥49,800

[1/4 22:00 Sale] Tanzanian Almandine Garnet 10mm/6.196ct Loose Stone Sale price¥29,800

[On Sale at 10 PM on January 9th] 3.662ct Rhodolite Garnet Loose Stone from Mozambique Sale price¥25,800

Tanzanian Almandine Garnet 6.5mm/1.071ct Loose Stone Sale price¥11,000

Tanzanian Almandine Garnet 2.897ct Loose Stone Sale price¥22,800

[1/4 22:00 Sale] Tanzanian Almandine Garnet 2.169ct Loose Stone Sale price¥21,800

[1/4 22:00 Sale] Mozambique Rhodolite Garnet 3.161ct Loose Stone Sale price¥22,800

[Available at 10 PM on January 9th] 1.024ct Chinese Cinnabar Loose Stone with Certificate of Authenticity Sale price¥22,800

Tibetan Andesine 2.769ct Loose Stone (Pixel Cut) Sale price¥9,800

Tanzanian Almandine Garnet 2.972ct Loose Stone Sale price¥18,800

Tanzanian Rhodolite Garnet 3.486ct Loose Stone Sale price¥24,800

Tanzanian Almandine Garnet 1.564ct Loose Stone Sale price¥12,800

Tanzanian Rhodolite Garnet 5.3mm/0.903ct Loose Stone Sale price¥9,800

Mozambique rubellite 0.814ct loose stone Sale price¥39,800

Brazilian pink tourmaline 2.765ct loose stone Sale price¥69,800

Tibetan Andesine 0.738ct Loose Stone Sale price¥15,800

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.