Cabochon Cut

【7/17 22時販売】高知県産血赤珊瑚 1.063ctルース Sale price¥12,800

【7/16 22時販売】高知県産血赤珊瑚 1.087ctルース Sale price¥12,800

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） 2.858ctルース

[On sale July 11, 10 PM] Brazilian Tinkerbell Quartz (Pink Fire Quartz) 2.858ct Loose Stone Sale price¥25,800

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） 3.108ctルース

[Listed as 12563000] Brazilian Tinkerbell Quartz (Pink Fire Quartz) 3.108ct Loose Sale price¥29,800

オーストラリア産オーストラリア産レインボーラティスサンストーン 2.208ctルース

[Sale on 7/10 at 10 PM] Australian Rainbow Lattice Sunstone 2.208ct Loose Stone Sale price¥22,800

[On sale July 10th at 10 PM] Brazilian Dumortierite in Quartz 1.684 ct Loose Stone Sale price¥12,800

[On sale July 10 at 10 PM JST] Brazilian Dumortierite in Quartz, 4.152 ct loose stone Sale price¥25,800

[Sales start July 13, 10 PM] Kochi Prefecture red coral 4.485 ct loose stone Sale price¥98,000

[Listed on 12562258] Eudialyte from Canada 2.796 ct loose stone Sale price¥39,800

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

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） 4.823ctルース

[On Sale July 9 at 10 PM JST] Brazilian Tinkerbell Quartz (Pink Fire Quartz) 11mm/4.823ct Loose Stone Sale price¥25,800

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） 1.967ctルース

[Sale July 6th at 10 PM] Brazilian Tinker Bell Quartz (Pink Fire Quartz) 1.967ct Loose Stone Sale price¥14,800

Kochi Prefecture oxblood coral 1.593ct loose Sale price¥9,800

【甲州貴石切子plusthree】メキシコ産ファイアオパール 4.633ctルース《コラボ》ワッペン

[Koshu Precious Stones plusthree] Mexican Fire Opal 4.633ct Loose Stone [Collaboration] Patch Sale price¥49,800

Sri Lankan Chrysoberyl Cat's Eye 1.514ct Loose Stone Sale price¥5,980

Sri Lankan Chrysoberyl Cat's Eye 1.074ct Loose Stone Sale price¥4,980

[On sale June 17th at 10 PM] Indian Parrot Chrysoberyl Cat's Eye 0.792ct Loose Stone Sale price¥29,800

Australian black opal 3.242ct loose stone Sale price¥59,800

[On sale June 14th, 10 PM JST] Madagascar Apatite Cat's Eye 1.734ct Loose Stone, Nissaihou Sale price¥9,800

【Sales begin on 6/21 at 10 PM】Mexican Fire Opal 1.857ct Loose Gemstone Sale price¥25,800

[On sale June 21st, 10 PM] Mexican Fire Opal Loose Stone 2.279ct Sale price¥15,800

[On sale June 14th at 10 PM] Australian Black Opal 1.080ct Loose Stone Sale price¥39,800

[On sale June 21st at 10 PM] Australian Black Opal 0.755ct Loose Stone Sale price¥12,800

[Sales begin 10 PM on June 21] Sri Lankan Chrysoberyl Cat's Eye 0.798ct Loose Sale price¥12,800

[On sale June 7th at 10 PM] Colombian Trapiche Emerald, 1.874ct Loose Stone, with Identification Report Sale price¥69,800

[Sale on June 5th at 10 PM] Sri Lankan Zircon Cat's Eye 2.087ct Loose Stone with Appraisal Sale price¥39,800

【Available May 30th at 10 PM】Sugilite from South Africa, 0.786 ct Loose Stone Sale price¥12,800

[Sale on 5/24 at 10 PM] Sri Lankan Chrysoberyl Cat's Eye 4.1mm/0.490ct Loose Stone Sale price¥15,800

[On sale May 24th, 10 PM JST] Burmese Ice Jadeite 4.2mm/0.346ct Loose Stone Sale price¥8,800

[Sale on 5/17 at 10 PM] Cinnabar from Xinhua, Hunan Province, China, 1.056 ct Loose Stone with Gemological Report Sale price¥18,800

[Sale begins May 18th, 10 PM JST] Chinese Cinnabar (Hunan Province) 0.867ct Loose Stone with Certification Sale price¥13,800

[On sale May 15, 10 PM JST] Chinese Cinnabar from Hunan Province, 0.842ct Loose Stone with Certificate Sale price¥15,800

[On Sale May 17th at 10 PM] Sri Lankan Chrysoberyl Cat's Eye 4.3mm/0.582ct Loose Stone Sale price¥15,800

【On sale May 15 at 10 PM】Sri Lankan Chrysoberyl Cat's Eye 4.5mm/0.419ct Loose Stone Sale price¥15,800

Mexican Cantera Opal 17.284ct Loose Sale price¥39,800

Mexican Cantera Opal 7.520 ct Loose Stone with Appraisal Sale price¥24,800

Mexican Cantera Opal 5.811 ct Loose Stone with Certificate Sale price¥29,800

1.758 ct Ruby Loose Stone from Vietnam with Identification Report Sale price¥49,800

[On Sale May 14th at 10 PM] Colombian Emerald 0.689ct Loose Stone Sale price¥18,800

Mexican Cantera Opal 10.379ct Loose Stone Sale price¥39,800

Mexican Cantera Opal 7.619 ct Loose Stone Sale price¥25,800

Mexican Cantera Opal 5.410 ct Loose Stone Sale price¥9,800

[On sale May 6th at 10 PM JST] Mexican Cantera Opal Loose Stone 7.207ct Sale price¥25,800

Mexican Cantera Opal 3.051ct Loose Stone Sale price¥18,800

Mexican Cantera Opal 1.867 ct Loose Stone Sale price¥12,800

[On sale May 2 at 10 PM JST] Sri Lankan Topaz Cat's Eye 3.384ct Loose Stone with Japan-Germany Gemological Report Sale price¥12,800

Star Sapphire from Sri Lanka, 4.758 ct Loose Stone (Color Shift) Sale price¥158,000

Congo hemimorphite 4.009ct loose stone Sale price¥22,800

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.