pear shape

[Posted on 12563959] Madagascar Padparadscha Sapphire 0.164ct Loose Stone Sale price¥36,800

[Lottery Sale 0725_03] Tanzania Purple Spinel 0.427ct Loose Stone with Certificate Sale price¥29,800

[#202607 Akihabara Pop-up, Currently Off-site] [12563253 Posted] Afghan Hauyne 0.112ct Loose Stone Sale price¥28,800

[#202607 Akihabara Pop-up Store Takeout][Shinjuku Marui Annex 202605 Takeout][12548265 Listed] Padparadscha Sapphire 0.545ct Loose Stone Sale price¥69,800

[On Sale July 31, 10 PM JST] Afghanistan Green Hauyne 0.062ct Loose Gemstone with Certificate Sale price¥16,800

[On sale August 2 at 10 PM] Colombian Emerald 0.107 ct Loose Gemstone with Certificate Sale price¥12,800

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

[On sale August 5th at 10 PM] Afghan Green Hauyne 0.086ct Loose Stone with Certificate Sale price¥22,800

【Listed on 12563251】Afghan Hauyne 0.080ct Loose Sale price¥25,800

[12562256 listed] American Neptunite 0.199ct Loose Sale price¥55,800

[Published on 12563087] Unheated Ruby 0.216ct Loose Stone Sale price¥59,800

[Listed on 12563726] Sri Lankan Purple Sapphire 0.661ct Loose Stone Sale price¥59,800

[On sale August 2 at 10 PM JST] Tanzanian Ayana spinel (hot pink spinel) 0.182 ct loose stone with gemological report Sale price¥25,800

[12558084 posted] Benitoite 0.190ct Loose, with identification report, Made in America Benitoite 0.158ct Loose, with identification report Benitoite 0.190ct Loose, with identification report Sale price¥118,000

[On sale July 15 at 10 PM] Madagascar Grandidierite 0.171ct Loose Gemstone with Certificate Sale price¥29,800

[Sale on 7/15 at 10 PM] Brazilian Green Tourmaline 0.770ct Loose Stone with Certification Sale price¥25,800

[On sale July 12th at 10 PM] Malawi Moonstone 2.184ct Loose Sale price¥13,800

【On sale July 12th at 10 PM】Malawian Moonstone (Malawi Moonstone) 1.980ct Loose Sale price¥11,000

【Sale starts at 10 PM on July 14th】Malawi Moonstone (Malawi Moonstone) 2.598ct Loose Stone Sale price¥16,800

[On sale July 12th, 10 PM JST] Colombian Emerald, 0.191 ct loose stone, Hoki Kyokai Sale price¥45,800

[Item 12563407] Afghan Green Hauyne 0.075ct Loose Stone Sale price¥29,800

[Lottery Sale_0612_01] Madagascar Bekily Blue Garnet (Color Change Garnet) 0.542ct Loose Sale price¥55,800

[On sale July 3 at 10 PM] Jeremejevite from Namibia, 0.103 ct loose stone, with certificate Sale price¥25,800

Tanzanian Mahenge Spinel (Pink Spinel) 0.566ct Loose Stone with Certification Sale price¥55,800

[On Sale July 10 at 10 PM JST] Tanzanian Mahenge Spinel (Pink Spinel) 0.333ct Loose Stone with Gemological Report Sale price¥29,800

[Sale on 7/22 at 10 PM] Malawi Moonstone 1.748ct Loose Gemstone Sale price¥9,800

[On sale 7/24 at 10 PM] Malawi Moonstone 1.621ct Loose Stone Sale price¥9,800

[On sale 7/24 10 PM] Malawi Moonstone 1.939ct Loose Gemstone Sale price¥12,800

Tanzanian Lavender Tanzanite 0.558ct Loose Stone Sale price¥12,800

Tanzanian bicolor tanzanite 0.573ct loose stone Sale price¥12,800

Tanzanian Lavender Tanzanite 0.577ct Loose Stone Sale price¥12,800

Oregon Sunstone from the United States 0.736ct loose stone Sale price¥8,800

Tanzanite from Tanzania 0.245ct loose stone Sale price¥8,800

Tanzania Bicolor Zoisite 0.295ct Loose Stone Sale price¥7,980

Tanzanite from Tanzania 0.385ct loose stone Sale price¥8,800

Tanzania Bicolor Zoisite 0.286ct Loose Stone Sale price¥7,980

非加熱ブラジル産パライバトルマリン 0.060ctルース（CuO:1.6%、MnO:2.3%）

Brazilian Paraiba Tourmaline 0.060ct Loose (CuO:1.6%, MnO:2.3%) Sale price¥42,800

非加熱ブラジル産パライバトルマリン 0.068ctルース（CuO:1.7%、MnO:2.4%）

Unheated Brazilian Paraiba Tourmaline 0.068ct loose stone (CuO: 1.7%, MnO: 2.4%) Sale price¥45,800

[Sales start July 6, 10 PM] Bicolor Euclase from Zimbabwe 0.118ct Loose Gemstone with Certificate Sale price¥25,800

Unheated Ruby, 0.207 ct, Loose Stone, Hōki Kyō Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.072ct loose stone (CuO: 1.8%, MnO: 2.3%) Sale price¥49,800

Unheated Brazilian Paraiba Tourmaline 0.069ct loose stone (CuO: 2.1%, MnO: 2.1%) Sale price¥65,800

Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:2.0%, MnO:2.2%) Sale price¥35,800

Unheated Brazilian Paraiba Tourmaline 0.081ct loose stone (CuO: 2.1%, MnO: 2.3%) Sale price¥75,800

Chameleon Diamond Green Diamond 0.122ct Loose (FANCY GRAY GREEN, SI2) Sale price¥69,800

[Sale starts June 16th, 10 PM JST] Myanmar Red Spinel 0.234ct Loose Gemstone Sale price¥12,800

[On Sale June 16, 10 PM] Loose 0.249ct Myanmar Red Spinel Sale price¥12,800

Afghan Hauyne 0.098ct Loose Stone with Certification Sale price¥25,800

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.