Emerald Cut

【8/2 22時販売】スイートホーム産ロードクロサイト 0.100ctルース鑑別書 Sale price¥8,800

【Sales start: July 30, 10 PM JST】Tanzanian Bi-Color Grossular Garnet 0.319ct Loose Stone Sale price¥19,800

coming soon

[Posted on 12563934] Colombian Emerald 0.792ct Loose Stone Sale price¥39,800

[Posted on 12563480] Madagascar Teal Green Sapphire 0.470ct Loose Stone Sale price¥29,800

Jeremejevite 0.226ct Loose Sale price¥45,800

[On Sale July 16, 10 PM JST] Brazilian Limonite in Quartz (Aurora Quartz) 2.291ct Loose Stone Sale price¥9,800

[On sale July 17 at 10 PM JST] Australian Rainbow Lattice Sunstone 0.722ct Loose Sale price¥14,800

[On sale July 19 at 10 PM JST] Tanzanian Bicolor Zoisite 0.255ct Loose Stone Sale price¥8,800

[On sale July 31, 10 PM] Zambian Emerald 1.112ct Loose Stone with Certificate Sale price¥18,800

[Published as 12563895] Namibian Jeremejevite Loose Stone, 0.199 ct Sale price¥45,800

[Available July 11, 10 PM JST] Kenya Bi-Color Grossular Garnet 0.809 ct Loose Stone Sale price¥25,800

[Published on 12563384] Tanzanian Zircon 2.053ct Loose Sale price¥19,800

[On Sale July 9, 10 PM JST] Bicolor Grossular Garnet from Tanzania 0.839ct Loose Stone Sale price¥19,800

[On sale July 3 at 10 PM] Tanzanian Bi-Color Grossular Garnet 0.934ct Loose Stone Sale price¥24,800

【Sale starts 10 PM on July 3rd】Tanzanian Bicolor Grossular Garnet 0.779 ct Loose Stone Sale price¥19,800

【Sales start at 10 PM on July 3rd (JST)】Bicolor Grossular Garnet from Tanzania 0.602ct Loose Gemstone Sale price¥16,800

[On sale July 9th at 10 PM JST] Tanzanian Bicolor Grossular Garnet 0.787ct Loose Stone Sale price¥19,800

[On sale July 15, 10 PM JST] Tanzanian Bi-Color Grossular Garnet, 0.882ct Loose Stone Sale price¥22,800

[On sale July 6th at 10 PM JST] 0.544ct Tanzanian Bi-Color Grossular Garnet Loose Gemstone Sale price¥14,800

【Sales start 10 PM on July 22nd (JST)】Tanzanian Bi-Color Grossular Garnet 0.855ct Loose Stone Sale price¥18,800

【Sales start 10 PM JST on July 6】Tanzanian Bi-Color Grossular Garnet 0.586ct Loose Gemstone Sale price¥14,800

[On sale July 5th, 10 PM JST] Brazilian Blue Tourmaline in Quartz 10.466ct Loose Stone Sale price¥39,800

[On Sale July 6, 10 PM] Brazilian Blue Tourmaline in Quartz 4.241ct Loose Stone Sale price¥19,800

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 3.575ct Loose Stone Sale price¥8,800

[On Sale July 10th, 10 PM] Tanzanian Zircon 1.841ct Loose Gemstone with Certificate Sale price¥18,800

[Sale on June 21 at 10 PM] Jeremejevite from Namibia 0.139ct Loose Stone with Certification Sale price¥29,800

[On Sale June 24 at 10 PM] Zimbabwe Euclase 0.183 ct Loose Stone with Certificate Sale price¥35,800

Namibian Jeremejevite 0.501ct loose stone (bicolor) Sale price¥89,800

[On sale June 14, 10 PM JST] Brazilian Canary Yellow Chrysoberyl 0.672 ct Loose Gemstone Sale price¥18,800

[12552306] Iolite 14.158ct loose stone Sale price¥258,000

American Red Beryl 0.132ct Loose Sale price¥33,800

Spessartite Garnet from Madagascar 1.053ct loose stone Sale price¥29,800

American red beryl 0.143ct loose Sale price¥35,800

【On sale June 7, 10 PM JST】Nigerian Cobalt Hauyne 0.157ct Loose with Certificate Sale price¥22,800

[On sale June 6th at 10 PM] Malawi Moonstone 2.201ct Loose Stone Sale price¥15,800

[On sale May 31st at 10 PM] Malawi Bicolor Zircon (Malawi Zircon) 0.985 ct Loose Sale price¥39,800

Namibian Jeremejevite 0.261ct loose stone Sale price¥45,800

[On Sale May 24, 10 PM JST] Synthetic Alexandrite Loose Stone 0.885ct Sale price¥18,800

[For sale May 18, 10 PM JST] Spanish Cobalt Calcite 0.289ct Loose Stone with Certificate Sale price¥29,800

[On sale 5/4 at 10 PM] Colombian bicolor emerald 0.274ct loose stone Sale price¥98,000

[Sale at 10 PM on May 4] Moroccan Cerussite 1.026ct Loose Stone with Japan-Germany Gemological Report Sale price¥69,800

[Sale on May 4, 10 PM] Bolivian Phosphophyllite 1.806ct Loose Stone with Certificate Sale price¥98,000

[On Sale May 5th at 10 PM] Cambodian Blue Zircon (Ratanakiri Blue) 23.105ct Loose Stone with Appraisal Sale price¥498,000

【12562795掲載】ブラジル産非加熱インペリアルトパーズ（シェリーカラー） 0.314ctルース

Unheated Brazilian Imperial Topaz (Sherry Color) 0.314ct Loose Sale price¥22,800

[On sale May 6th, 10 PM JST] Brazilian unheated Imperial Topaz (Sherry Color) 0.368ct loose gemstone Sale price¥25,800

Benitoite 0.272ct loose stone (emerald cut) Sale price¥248,000

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.