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 "

coming soon

[12562118] Almandine Garnet 0.562ct Loose Stone Sale price¥6,980

[On Sale 3/12 10pm] Oregon Sunstone from the USA, 6.1mm/0.820ct Loose Sale price¥16,800

coming soon

[12562077] Oregon Sunstone from the United States, 1.356ct Loose Sale price¥35,800

[On Sale 3/7 at 10pm] Oregon Sunstone from the USA, 7.2mm/1.334ct Loose Sale price¥29,800

[On Sale at 10 PM on March 8th] Unheated Pigeon Blood Ruby 0.380ct Loose Stone AIGS Sale price¥79,800

[On Sale 3/13 at 10pm] Canadian Eudialite 2.5mm/0.051ct Loose Stone with Certificate of Authenticity Sale price¥18,800

[On Sale at 10 PM on February 25th] Oregon Sunstone from the United States, 7.0mm/1.169ct Loose Stone Sale price¥15,800

[On Sale 2/27 at 10pm] Oregon Sunstone from the USA, 7.0mm/1.260ct Loose Sale price¥12,800

[On Sale 2/21 10pm] Oregon Sunstone from the USA, 7.1mm/1.308ct Loose Sale price¥19,800

[On Sale at 10 PM on March 5th] 1.362ct Oregon Sunstone Loose Stone from the United States Sale price¥15,800

[On Sale 2/21 10pm] American Anthill Garnet 4.0mm/0.359ct Loose Stone Sale price¥12,800

[On Sale 2/21 10pm] American Anthill Garnet 4.0mm/0.332ct Loose Stone Sale price¥11,000

[On Sale at 10 PM on March 8th] Mozambique Almandine Garnet 6.7mm/1.228ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on January 10th] Chinese Cinnabar 0.811ct Loose Stone with Certificate of Authenticity Sale price¥29,800

Ruby 0.289ct loose stone by Takakikyo Sale price¥12,800

[On Sale at 10 PM on February 19th] Oregon Sunstone from the United States, 0.428ct Loose Sale price¥18,800

[On Sale 3/8 at 10pm] 0.175ct Loose Hot Pink Sapphire from Mozambique Sale price¥15,800

[On Sale at 10 PM on March 8th] Myanmar Red Spinel 0.196ct Loose Sale price¥8,800

[On Sale 2/6 at 10 PM] Oil-Free Red Beryl from the United States, 2.6mm/0.050ct Loose, GIA Sale price¥79,800

[Available at 10 PM on 2/6] Unheated Pigeon Blood Ruby 5.0mm/0.520ct Loose Stone AIGS Sale price¥128,000

[On Sale 2/4 at 10pm] Tibetan Andesine 0.348ct Loose Stone Sale price¥12,800

[On Sale 2/7 at 10pm] Mozambique Rubellite 0.933ct Loose Stone Sale price¥25,800

[On sale at 10pm on 2/4] Ruby 3.3mm/0.171ct Loose Sale price¥39,800

[On Sale 2/8 at 10pm] American Red Beryl 3.2mm/0.111ct Loose Stone Sale price¥29,800

[On Sale 2/8 at 10pm] Oregon Sunstone from the USA, 5.0mm/0.498ct Loose Stone Sale price¥15,800

[On Sale at 10 PM on February 5th] Tanzanian Rhodolite Garnet 9.2mm/4.174ct Loose Stone Sale price¥29,800

[On Sale 2/5 at 10pm] Tanzanian Rhodolite Garnet 9.3mm/4.393ct Loose Stone Sale price¥29,800

[On sale at 10pm on 2/7] Tibetan Andesine 0.320ct Loose Stone Sale price¥9,800

Pigeon blood ruby 0.310ct loose Sale price¥98,000

[On Sale 2/7 at 10pm] Pigeon Blood Ruby 4.0mm/0.230ct Loose Stone AIGS Sale price¥69,800

Sold out

[Quiz] American Anthill Garnet 0.578ct Loose

[On Sale at 10 PM on January 31st] American Anthill Garnet 5.0mm/0.641ct Loose Stone Sale price¥15,800

[On Sale at 10 PM on January 31st] 1.640ct Loose Oregon Sunstone from the United States Sale price¥16,800

[On Sale at 10 PM on February 16th] 1.640ct Loose Oregon Sunstone from the United States Sale price¥16,800

[On Sale 2/17 at 10pm] 1.590ct Loose Oregon Sunstone from the USA Sale price¥15,800

[On Sale 2/17 at 10pm] 2.128ct Oregon Sunstone Loose Stone from the USA Sale price¥22,800

[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 3/11 at 10pm] Oregon Sunstone from the USA, 5.0mm/0.520ct Loose Stone Sale price¥15,800

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

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

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.