Above ¥100,000

[On sale 6/5 at 10 PM] Russian Demantoid Garnet (horsetail inclusion visible) 5.8mm/0.876ct Loose Stone with Appraisal Report Sale price¥258,000

[On sale May 31 at 10 PM] Myanmar Musgravite 0.351ct Loose Gemstone, Japan-Germany Sale price¥128,000

[Available June 12, 10 PM JST] [Colorfuri] Pt900 Thai Sapphire 1.33ct and Diamond 0.12ct Ring with GIA Report Sale price¥198,000

[On sale June 12th at 10 PM] [Colorfuri] Pt900 Madagascar Sapphire 0.99ct / Diamond 0.58ct Ring GIA Sale price¥228,000

[On sale May 20 at 10 PM] Brazilian Imperial Topaz 3.999 ct Loose Stone with Certificate Sale price¥188,000

[On sale May 20th at 10 PM] Unheated Color Change Brazilian Paraiba Tourmaline 0.050ct Loose Stone GIA Sale price¥128,000

Non-Oil Emerald 1.370ct Loose GIA Sale price¥1,580,000

Colombian oil-free emerald 0.310ct loose stone Sale price¥298,000

インターナリーフローレスダイヤモンド（H&C） 0.360ctルース(D, IF, 3Excellent H&C)

[On sale May 12th, 10 PM JST] Internally Flawless Diamond (H&C) 4.5mm/0.360ct Loose Stone (D, IF, 3Excellent H&C) GIA & CBT Sale price¥188,000

フローレスダイヤモンド（H&C） 0.230ctルース(D, FL, 3Excellent H&C)

[On sale May 12, 10 PM JST] Flawless Diamond (H&C) 4.0mm/0.230ct Loose Stone (D, FL, 3Excellent H&C) GIA&CGL Sale price¥158,000

フローレスダイヤモンド（H&C） 0.210ctルース(D, FL, 3Excellent H&C)

[On sale May 12, 10 PM JST] Flawless Diamond (H&C) 3.8mm/0.210ct Loose (D, FL, 3Excellent H&C) GIA & Central Gem Lab Sale price¥148,000

ブラジル産トリカラートルマリン 32.207ctルース (パーティカラートルマリン）

[On sale May 10th at 10 PM] Brazilian Tricolor Tourmaline 32.207ct Loose Stone (Parti-color Tourmaline) Sale price¥398,000

[Sale on 5/23 at 10 PM JST] Brazilian Paraiba Tourmaline 0.170ct Loose Stone (CuO: 2.1%, MnO: 1.1%) Sale price¥258,000

[On sale May 3rd at 10 PM] Afghan Kunzite (Lilac Pink) 49.724ct Loose Gemstone Sale price¥298,000

[On Sale May 6, 10 PM JST] [Colorfley] Pt900 Opal 2.61ct / Diamond 0.858ct Ring Sale price¥168,000

[On sale May 6th, 10 PM JST] [Colorfury] Pt900 Ice Blue Diamond (Treated) 1.00ct Ring Sale price¥298,000

[Available 5/23 10 PM] Colorful K18 Blood Coral 9.9mm Diamond Pendant Top (Necklace Top) with Certificate of Authenticity Sale price¥158,000

Benitoite 0.231ct loose Sale price¥220,000

Benitoite 0.286ct loose Sale price¥258,000

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

Burmese ruby 3.72ct loose GIA/CGL Sale price¥298,000

[Colorful] K18WG Blood Coral and Diamond (0.19ct) Brooch with certificate Sale price¥398,000

[Colorful] Pt900 Black Opal 0.83ct / Diamond 0.62ct Ring with Certificate Sale price¥228,000

[Colorful] Pt900 Black Opal 1.24ct / Diamond 0.70ct Ring with Appraisal Certificate Sale price¥228,000

Pt900/Pt850クリノヒューマイト0.726ct ペンダント（ネックレス） - カラッツSTORE

[Color Fleuri] Pt900 Chondrodite 0.726ct / Diamond 0.55ct Pendant (Necklace) with Japan-Germany Gemological Report Sale price¥110,000

Unheated Brazilian Paraiba tourmaline 0.110ct loose AIGS Sale price¥258,000

Madagascar Apatite 19.863ct Loose Sale price¥128,000

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

American Benitoite 0.242ct Loose Sale price¥158,000

Pt950 Ice Blue Diamond (Treatment) 0.197ct Ring Sale price¥128,000

K18YG ロシア産デマントイドガーネット（ホーステール認む） 0.271ct リング

K18YG Russian Demantoid Garnet (Horsetail Inclusions Present) 0.271ct Green Garnet Ring Sale price¥228,000

Unheated Brazilian Bi-Color Paraiba Tourmaline 0.105ct Loose Stone GIA (CuO:2.2% MnO:1.2%) Sale price¥198,000

Brazilian Morganite, 11mm/5.181ct Loose Stone Sale price¥158,000

Brazilian Morganite 10mm/4.535ct Loose Stone Sale price¥148,000

Lagoon Tourmaline from Afghanistan, 2.649 ct Loose Stone, Central Japan Gem Laboratory Sale price¥198,000

[12551250] Brazilian oil-free emerald 0.120ct loose stone Sale price¥110,000

18K Yellow Gold Ruby Ring (Pigeon Blood Color) Sale price¥128,000

[Dandelion cut] Rhodochrosite from South Africa 2.244ct loose with emblem Japanese-German edition Sale price¥298,000

Unheated Bicolor Paraiba Tourmaline 0.092ct Loose GIA Sale price¥188,000

South African rhodochrosite 2.477ct loose Japanese-German edition Sale price¥398,000

Bicolor Paraiba tourmaline 2.477ct loose DGL version Sale price¥298,000

Brazilian unheated parti-colored Paraiba tourmaline 0.411ct loose stone (tri-color) DGL Sale price¥398,000

18K Yellow Gold Brazilian Pink Imperial Topaz 0.909ct Diamond Ring by Nikko Kan Sale price¥148,000

Zimbabwe Green Diamond Rough (Sawable) 0.428ct Rough Stone with Trigon Sale price¥158,000

South African Rhodochrosite 1.820ct Loose Stone Sale price¥128,000

Russian Demantoid Garnet (Horsetail) 5.8mm/0.851ct Loose Stone Sale price¥198,000

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.