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Colombian emerald loose stone 0.167ct Sale price¥22,800

《Limited to 1 Set》Benitoite Gradation 5-Stone Set (2.0mm, includes top quality) 《Multiple Purchase Discount Available》 Sale price¥148,000

《Limited to 1 Set》Benitoite Gradation 5-Stone Set (2.0mm, includes top quality) 《Multiple Purchase Discount Available》 Sale price¥49,800

【On sale August 1st at 10 PM】[Colorfle] Pt850 Venetian Chain Necklace, Approx. 45cm, Adjustable Slide Chain Sale price¥29,800

[Ref: 12564456] Mozambique Aquamarine 0.837ct Loose Stone Sale price¥9,800

[Item 12564468] Australian Black Opal 0.306ct Loose Stone Sale price¥25,800

[Item 12564632] Pakistani Vanadium Sphene 1.579ct Loose Gemstone Sale price¥69,800

[Item 12564642] Colombian Trapiche Emerald 1.036ct Loose Stone Sale price¥69,800

[Item 12564727] Tanzanite from Tanzania, 0.956ct Loose Stone Sale price¥19,800

[Item 12564726] Tanzanian Tanzanite 0.827ct Loose Stone Sale price¥18,800

[Ref: 12564725] Tanzanite from Tanzania, 0.892ct loose stone Sale price¥18,800

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.464ctルース

[Item 12564681] Bekily Blue Garnet (Color Change Garnet) from Madagascar, 0.464ct Loose Gemstone Sale price¥59,800

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.394ctルース

[Item 12564676] Madagascar Bekily Blue Garnet (Color Change Garnet) 0.394ct Loose Stone Sale price¥49,800

[12565162 Listed] Spessartine Garnet from Tanzania 0.739ct Loose Gemstone Sale price¥25,800

[12565160] Tsavorite from Kenya, 0.439ct loose stone Sale price¥29,800

[12565159] Tsavorite from Kenya, 0.314ct loose stone Sale price¥18,800

[10/18 10:00 PM Release] Brazilian Microlite 0.066ct Loose Gemstone with Identification Report Sale price¥12,800

[Available 10/18 at 22:00] Brazilian Microlite 0.058ct Loose Gemstone with Identification Report Sale price¥22,800

[Oct 18, 10:00 PM Sale] Brazilian Microlite 0.055ct Loose Stone with Identification Report Sale price¥25,800

[Available 10/18 at 22:00] Myanmar Poudretteite 0.065ct Loose Gemstone with Identification Report Sale price¥25,800

[Available Oct 18, 10 PM] Myanmar Pezzottaite 0.045ct Loose Gemstone with Identification Report Sale price¥18,800

[10/18 10:00 PM Release] Tanzanian Mandarin Garnet 4.5mm/0.529ct Loose Stone with Identification Report Sale price¥29,800

[Available 10/18 at 10 PM] Ruby 0.185ct Loose Stone with Appraisal Report Sale price¥12,800

[Item 12565148] Ruby 0.552ct Loose Stone Sale price¥14,800

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.231ctルース

[Item 12565145] Bekily Blue Garnet (Color Change Garnet) from Madagascar, 0.231ct loose stone Sale price¥22,800

[Item 22602848] K14WG Akoya Pearl Earrings with Identification Report Sale price¥19,800

[Item 22602847] Peridot 1.20ct / 1.20ct Earrings with Identification Report Sale price¥49,800

[Item 22602846] K18 Ruby 0.03/0.03ct & Diamond 0.04/0.04ct Earrings with Appraisal Report Sale price¥39,800

K18 白蝶貝猫モチーフダイヤモンド0.01ctペンダントトップ（ネックレストップ）鑑別書

[Available 10/19 at 10 PM] [Color-Full] 18K Gold Mother-of-Pearl Cat Motif Pendant Top with 0.01ct Diamond (Includes Appraisal Report) Sale price¥69,800

【Available Oct 19, 10 PM】【Colori】K18 Pyramid Cut Diamond 0.731ct Ring with Appraisal Report Sale price¥128,000

[Item No. 22602835] K18 Akoya Pearl Earrings with Appraisal Certificate Sale price¥22,800

[Item 12564407] Stibiotantalite from Afghanistan, 0.200ct loose stone Sale price¥45,800

[Item 12564406] Stibiotantalite from Afghanistan, 0.186ct loose stone Sale price¥45,800

[Item No. 12564322] Burmese Red Spinel 0.176ct Loose Gemstone Sale price¥17,800

[Item 12564569] Russian Non-Oiled Emerald 0.121ct Loose Gemstone Sale price¥49,800

[Item 12564624] Tanzanian Cobalt Spinel 0.094ct Loose Gemstone Sale price¥47,800

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.620ctルース鑑別書

[Item 12564627] Bekily Blue Garnet (Color-Change Garnet) from Madagascar, 0.620ct Loose Stone Sale price¥69,800

[12560799 Listed] Brazilian Elestial Amethyst 0.819ct Loose Stone Sale price¥9,800

[Item No. 12560796] Brazilian Elestial Amethyst 1.965ct Loose Stone Sale price¥18,800

[12560786] Nigerian Green Beryl 0.621ct Loose Stone Sale price¥8,800

Brazilian Mint-Colored Tourmaline 0.294ct Loose Stone Sale price¥15,800

Zambian Emerald 0.188ct Loose Stone Sale price¥9,800

Mozambique Almandine Garnet 1.144ct Loose Stone Sale price¥15,800

ケニア産非加熱ゴールドシーンサファイア（スターサファイア） 4.0mm/0.477ctルース鑑別書

[Item 12564325] Kenya Gold Sheen Sapphire (Star Sapphire) 0.477ct Loose Gemstone Sale price¥35,800

Australian Black Opal 0.421ct Loose Stone Sale price¥18,800

インターナリーフローレスダイヤモンド（H&C） 0.320ctルース(D, IF, 3Excellent H&C)

[Deadline: Sat, Oct 3, 10 AM: Lottery Sale ①_07] Internally Flawless Diamond (H&C) 0.320ct Loose Stone (D, IF, 3Excellent H&C) GIA & CGL Certified Sale price¥148,000

[10/3 (Sat) 10:00 AM Deadline: Lottery Sale ①_02] Diamond (H&C) 4.3mm/0.318ct Loose Stone (H, SI-1, 3Excellent H&C) with CGL Certificate & Sarine Light Report Sale price¥45,800

[Available 10/14 at 22:00] Pakistani Vanadium Sphene 1.690ct Loose Gemstone with Identification Report Sale price¥69,800

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.