Brazilian

Brazilian Euclase (Bicolor Euclase) 0.302ct Loose Stone Sale price¥45,800

[12552852] Citrine 2.734ct loose stone Sale price¥22,800

[Lottery Sale ②_202608_16] Loose Brazilian Parti-Color Tourmaline 15.355ct Sale price¥39,800

Brazilian bicolor tourmaline 7.489ct loose Sale price¥39,800

【#202607 Akihabara Popup Outtake】【12562793 Listed】Unheated Brazilian Imperial Topaz (Sherry Color) 0.459ct Loose Stone Sale price¥32,800

Brazilian Paraiba Tourmaline 0.068ct loose stone Sale price¥61,800

【Lottery Sale 0731_08】Brazilian Emerald Cat's Eye 6.083ct Loose Gemstone with Japanese and German Gemological Report Sale price¥258,000

【#202607 Akihabara Pop-up Store - Currently out for display】【12563131 Posted】Brazilian Santa Maria Aquamarine 0.299ct Loose Stone Sale price¥19,800

[#202607 Akihabara Pop-up Store Takeout in Progress] [12562065 Posted] Brazilian Sky Blue Topaz 0.906ct Loose Stone Sale price¥12,800

[On sale August 16 at 10 PM] Brazilian Spessartine Garnet 0.580ct Loose Stone with Certificate of Authenticity Sale price¥14,800

[On sale August 9, 10 PM] Untreated Purple-Pink Imperial Topaz, 0.250 ct Loose Stone, with Certificate, from Brazil Sale price¥39,800

[On sale August 19th, 10 PM JST] Untreated Purple-Pink Imperial Topaz from Brazil, 0.241ct loose stone with gemological report Sale price¥35,800

[On Sale August 19, 10 PM] Brazilian Spessartine Garnet 0.968 ct Loose Stone with Certificate Sale price¥25,800

[On sale August 11th at 10 PM] Brazilian Pink Tourmaline 0.689ct Loose Stone with Appraisal Sale price¥15,800

[Published 12563933] Brazilian Rubellite 1.100ct Loose Stone Sale price¥98,000

Brazilian rhodonite 1.423ct loose stone Sale price¥29,800

[12558272 listed] Brazilian Medusa Quartz (Paraiba Quartz) 0.456ct Loose Sale price¥9,800

Brazilian Alexandrite 0.102ct Loose Stone with Certification Sale price¥29,800

[Listed as 12562727] Pink Imperial Topaz 1.907ct Loose Stone Sale price¥118,000

Brazil Color Change Fluorite 1.099ct Loose Stone Sale price¥9,800

Brazilian Golden Beryl 7.2mm/1.369ct Loose Stone with Certificate of Authenticity (Sale begins August 2nd at 10 PM JST) Sale price¥7,980

[Listed as 12563731] Brazilian Indicolite Tourmaline 0.404 ct Loose Stone Sale price¥39,800

Brazilian Dendritic Quartz 4.571ct Loose Sale price¥12,800

Brazilian Dendritic Quartz 5.085ct Loose Stone Sale price¥12,800

Brazilian rose quartz 8.7mm/2.536ct loose stone Sale price¥11,800

Brazilian yellow beryl, 1.472 ct loose Sale price¥19,800

1.361ct loose Amphibole in Danburite from Brazil Sale price¥14,800

2.251ct Loose Brazilian Amphibole in Danburite with Japan-Germany Gemological Report Sale price¥29,800

Brazilian Green Tourmaline 0.770ct Loose Stone with Appraisal Report Sale price¥25,800

Brazilian Pyrite in Quartz 5.600ct Loose Gemstone Sale price¥9,800

Brazilian Dumortierite in Quartz 1.684ct Loose Gemstone Sale price¥12,800

Brazilian Dumortierite in Quartz 4.152ct Loose Stone Sale price¥25,800

[Listing No. 12563397] Brazilian Alexandrite 0.217 ct Loose Stone Sale price¥39,800

[Published 12562264] Brazilian Lazulite 0.048ct Loose Sale price¥36,800

《Limited to 17 Stones》Brazilian Hematite in Quartz and Actinolite in Quartz (including those with a gemological report) - 1 Stone Loose - 《Multiple Purchase Discount Available》 Sale price¥3,980

[Lottery Sale 0428_2_07] Watermelon Tourmaline 14.780ct Loose Stone Sale price¥128,000

Brazilian Paraiba Tourmaline 2.9mm/0.090ct Loose (CuO:1.7% MnO:1.4%) Sale price¥69,800

[On sale August 7th, 10 PM JST] Brazilian Santa Maria Aquamarine 0.463ct Loose Stone, with appraisal report Sale price¥29,800

Brazilian Dumortierite in Quartz 1.290ct Loose Sale price¥12,800

Brazilian Blue Tourmaline in Quartz 10.466ct Loose Sale price¥39,800

Brazilian Blue Tourmaline in Quartz 4.241ct Loose Sale price¥19,800

Brazilian Black Garden Quartz 5.030ct Loose Gemstone Sale price¥12,800

Dumortierite in quartz from Brazil 7.3mm/1.729ct loose stone Sale price¥12,800

[On sale May 10th, 10 PM JST] 6 Limited Pieces - Brazilian Mica in Rose Quartz (One stone), Multiple Purchase Discount Available Sale price¥2,980

Brazilian Euclase 0.289ct loose stone Sale price¥12,800

Brazilian Euclase 0.263ct Loose Stone (Colorless Euclase) Sale price¥9,800

Brazilian Euclase 0.695ct Loose Stone Sale price¥18,800

Brazilian Dendritic Agate 1.679ct Loose Stone Sale price¥5,980

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.