pear shape

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

[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

[On sale July 5th at 10 PM] 0.566ct Loose Tanzanian Mahenge Spinel (Pink Spinel) with identification 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

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

[On sale June 23 at 10 PM] Untreated Ruby 0.207ct Loose Stone (Houseki Kyo certificate) Sale price¥69,800

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

[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

[Sale June 15th 10 PM JST] Afghanistan Hauyne 0.098ct Loose Stone with Gemstone Identification Report Sale price¥25,800

American Red Beryl 0.147ct Loose Sale price¥35,800

非加熱ブラジル産パライバトルマリン 0.065ctルース（CuO:1.6%、MnO:2.4%）

0.065ct loose Paraiba tourmaline from Brazil (CuO: 1.6%, MnO: 2.4%) Sale price¥49,800

[On sale June 6th at 10 PM] Malawi Moonstone (Malawi Moonstone) 2.428 ct Loose Sale price¥18,800

ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 7.682ctルース

[On sale 10 PM, June 6] Brazil Tinkerbell Quartz (Pink Fire Quartz) 7.682ct Loose Stone Sale price¥15,800

パープルダイヤモンド 0.048ctルース(FANCY VIVID PINK PURPLE, SI-1)

[On sale June 5th at 10 PM] Purple Diamond 0.048ct Loose Stone (FANCY VIVID PINK PURPLE, SI-1) CGL Sale price¥198,000

Loose Paraiba Tourmaline from Brazil, 0.059ct (CuO: 1.4%, MnO: 2.7%) Sale price¥45,800

Brazilian Paraiba Tourmaline 0.065ct Loose Stone (CuO: 2.0%, MnO: 2.4%) Sale price¥49,800

0.066ct loose Brazilian Paraiba Tourmaline (CuO: 1.5%, MnO: 2.2%) Sale price¥45,800

Paraiba Tourmaline from Brazil, 0.063 ct, loose (CuO: 1.8%, MnO: 2.4%) Sale price¥55,800

Loose 0.061ct Brazilian Paraiba Tourmaline (CuO: 1.7%, MnO: 2.2%) Sale price¥49,800

Brazilian Paraiba Tourmaline 0.055ct Loose (CuO:1.9%, MnO:2.2%) Sale price¥45,800

Paraiba Tourmaline from Brazil 0.056ct loose stone (CuO: 1.7%, MnO: 2.3%) Sale price¥45,800

0.062ct Loose Paraiba Tourmaline from Brazil (CuO: 1.7%, MnO: 2.5%) Sale price¥47,800

Brazilian Paraiba Tourmaline 0.058ct Loose Gemstone (CuO: 2.0%, MnO: 2.2%) Sale price¥39,800

Brazilian Paraiba Tourmaline 0.056ct Loose Stone (CuO:2.1%, MnO:2.2%) Sale price¥39,800

Paraiba tourmaline from Brazil 0.049ct loose Sale price¥19,800

[On sale May 30th at 10 PM] Afghan Hackmanite, 0.093ct loose stone Sale price¥16,800

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.