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[Available 9/12 at 10 PM] <limited to stones> Russian &amp; Brazilian Alexandrite Gacha (includes 1 Chrysoberyl stone from Mr. Saint-Germain) <multi-purchase discounts available></multi-purchase></limited>

[Available 9/12 at 10 PM] Russian & Brazilian Alexandrite Gacha (includes 1 Chrysoberyl stone from Mr. Saint-Germain) Sale price¥3,980
[9/20 10 PM Sale] <limited to stones> Brazilian Moss Green Beryl Gacha (0.8ct average, Rose cut) <multi-buy discounts available></multi-buy></limited>

[9/20 10 PM Sale] Brazilian Moss Green Beryl Gacha (0.8ct average, Rose cut) Sale price¥2,980
Brazilian Rainbow Aquamarine (Iridescent Aquamarine) Loose Stone (Heart Shape) (Multiple Purchase Discounts Available)

Brazilian Rainbow Aquamarine (Iridescent Aquamarine) Loose Stone (Heart Shape) (Multiple Purchase Discounts Available) Sale price¥5,980
【Available 9/21 at 10 PM】《Limited to 11 stones》KEN-cut approx. 3mm loose gemstone gacha (Colombian mint-color emerald, spinel, zircon, etc.)《Multi-purchase discount available》

【Available 9/21 at 10 PM】《Limited to 11 stones》KEN-cut approx. 3mm loose gemstone gacha (Colombian mint-color emerald, spinel, zircon, etc.)《Multi-purchase discount available》 Sale price¥2,980
【12564165掲載】コロンビア産ノンオイルエメラルド 0.290ctルース

[Sat, Sep 5, 10:00 AM Deadline: Lottery Sale_10] Colombian Non-Oiled Emerald 0.290ct Loose Stone GIA Sale price¥178,000
[Ref: 12564306] Brazilian Emerald Cat's Eye 0.582ct Loose Gemstone

[Ref: 12564306] Brazilian Emerald Cat's Eye 0.582ct Loose Gemstone Sale price¥22,800
コロンビア産エメラルド 0.126ctルース

[10/3 10 PM Sale] Colombian Emerald 0.126ct Loose Gemstone with Appraisal Report Sale price¥39,800
コロンビア産エメラルド 0.211ctルース

[10/3 10 PM Sale] Colombian Emerald 0.211ct Loose Gemstone with Identification Report Sale price¥59,800
ブラジル産サンタマリアアクアマリン 0.318ctルース

[Available 10/3, 10:00 PM] Santa Maria Aquamarine from Brazil, 0.318ct loose stone, with certificate of authenticity Sale price¥29,800
コロンビア産雲母インエメラルド 0.249ctルース

【Available 10/3 at 10 PM】 Colombian Mica-in-Emerald 4.2mm/0.249ct Loose Gemstone with Certificate of Authenticity Sale price¥22,800
コロンビア産雲母インエメラルド 0.140ctルース

【10/3 22:00 Release】 Colombian Mica-in-Emerald 0.140ct Loose Stone with Identification Report Sale price¥18,800
ザンビア産エメラルド 0.202ctルース

[Listing 12556682] Zambian Emerald 0.202ct Loose Stone Sale price¥15,800
コロンビア産エメラルド 0.079ctルース

[9/27 10:00 PM Release] Colombian Emerald 0.079ct Loose Stone Sale price¥8,800
コロンビア産エメラルド 0.121ctルース

[9/27 10:00 PM Release] Colombian Emerald 0.121ct Loose Stone Sale price¥15,800
コロンビア産エメラルド 0.148ctルース

[9/27 10 PM Sale] Colombian Emerald 0.148ct Loose Stone Sale price¥29,800
【Available 9/23 at 10 PM】《Limited to 6 stones》Rough Colombian Emerald (avg. 0.75ct) 《Multi-buy discount available》

【Available 9/23 at 10 PM】《Limited to 6 stones》Rough Colombian Emerald (avg. 0.75ct) 《Multi-buy discount available》 Sale price¥9,800
[On sale 9/23 at 22:00] &lt;4 stones only&gt; Brazilian moss green beryl loose stone (emerald cut, avg. 1.2ct) <multi-buy discount available></multi-buy>

[On sale 9/23 at 22:00] <4 stones only> Brazilian moss green beryl loose stone (emerald cut, avg. 1.2ct) Sale price¥3,980
Pt950レッドベリル0.20ct・ダイヤモンド0.23ctリング鑑別書

[On sale 9/20 at 22:00] [Color-free] Pt950 Red Beryl 0.20ct / Diamond 0.23ct Ring with Appraisal Report Sale price¥98,000
K18 アクアマリン 0.65ct・ダイヤモンド0.02ctリング 鑑別カード

【Available 9/20 at 10:00 PM】 Colorfuli K18 Aquamarine 0.65ct & Diamond 0.02ct Ring with Identification Card Sale price¥89,800
アメリカ産レッドベリル 0.251ctルース

[Lottery Sale 0818_12] Loose 0.251ct Red Beryl (USA) with Certificate Sale price¥98,000
コロンビア産エメラルド 0.150ctルース

[Available 9/22, 10 PM] Colombian Emerald 0.150ct Loose Stone Sale price¥12,800
K10アクアマリン リング鑑別書

[Available 9/18, 10 PM] [Colorafuri] K10 Aquamarine Ring with Appraisal Report Sale price¥39,800
Pt900 エメラルド 0.4ct ダイヤモンド0.33ctペンダントトップ（ネックレストップ）鑑別書

[Available 9/24 at 10 PM] [Colori] Pt900 Emerald 0.40ct & Diamond 0.33ct Pendant Top (Necklace Top) with Appraisal Report Sale price¥79,800
Pt900 エメラルド 5.33ct サファイア4.52ct、ダイヤモンド0.12ctリング 宝貴協

[On sale 9/24 at 22:00] [Colorfully] Pt900 Emerald 5.33ct, Sapphire 4.52ct, Diamond 0.12ct Ring (JGA Certified) Sale price¥198,000
コロンビア産パイライト付きエメラルド 0.634ct原石

[Available 9/19 at 10 PM] Colombian Emerald with Pyrite, 0.634ct Raw Gemstone Sale price¥19,800
コロンビア産パイライト付きエメラルド 0.981ct原石

[On sale 9/19 at 22:00] Colombian Emerald with Pyrite, 0.981ct Raw Gemstone Sale price¥29,800
コロンビア産エメラルド 1.645ct原石

[Available 9/19 at 10:00 PM] 1.645ct Colombian Emerald Rough Stone Sale price¥49,800
コロンビア産エメラルド 0.078ctルース

【Available 9/22, 10:00 PM】 Colombian Emerald 0.078ct Loose Gemstone Sale price¥18,800
コロンビア産エメラルド 0.267ctルース

[Available Sept. 21, 10:00 PM] Colombian Emerald 0.267ct Loose Gemstone Sale price¥39,800
コロンビア産エメラルド 0.152ctルース

[Available 9/21, 10:00 PM] Colombian Emerald 0.152ct Loose Gemstone Sale price¥25,800
ブラジル産ミントカラーエメラルド 0.451ctルース

[Available Sept 21, 10 PM] Brazilian Mint Color Emerald 0.451ct Loose Stone Sale price¥15,800
ザンビア産エメラルド 0.199ctルース

【Available 9/21, 10 PM】 Zambian Emerald 0.199ct Loose Gemstone Sale price¥9,800
ナイジェリア産グリーンベリル 0.311ctルース

[Available 9/21, 10:00 PM] Nigerian Green Beryl 0.311ct Loose Gemstone Sale price¥7,980
アクアマリン 0.424ctルース

[Available 9/29 at 10:00 PM] Mozambique Aquamarine 0.424ct Loose Gemstone Sale price¥7,980
コロンビア産パイライト・雲母インエメラルド 0.628ctルース

Colombian pyrite-mica emerald 0.628ct loose stone Sale price¥29,800
コロンビア産エメラルド 0.231ctルース

Colombian emerald 0.231ct loose stone Sale price¥25,800
コロンビア産トラピッチェエメラルド 0.299ctルース

Colombian Trapiche Emerald 0.299ct Loose Sale price¥16,800
コロンビア産エメラルド 0.247ctルース

[Available 9/12, 10:00 PM] Colombian Emerald 0.247ct Loose Gemstone Sale price¥39,800
コロンビア産エメラルド ルース・原石2石セット（ラウンドカット3mm）

Colombian emerald loose rough stone set of 2 stones (round cut 3mm)《Multiple purchase discount available》 Sale price¥6,980
[6/ 10 PM JST Release] 《Limited to 11 Stones》Bicolor Gemstone Gacha featuring Paraiba Tourmaline and Euclase 《Bulk Purchase Discount Available》

[6/ 10 PM JST Release] 《Limited to 11 Stones》Bicolor Gemstone Gacha featuring Paraiba Tourmaline and Euclase 《Bulk Purchase Discount Available》 Sale price¥3,980
Limited to 25 stones: 1 Brazilian Santa Maria aquamarine (round cut, approx. 3.0 mm) Multiple purchase discounts available

Limited to 25 stones: 1 Brazilian Santa Maria aquamarine (round cut, approx. 3.0 mm) Multiple purchase discounts available Sale price¥5,980
[On sale 8/15 at 10 PM JST] Colombian Emerald Gacha featuring Shimizu Kisaki's 8mm Clover In-cut (regularly 79,800 JPY) - only 15 stones available! (Bonus green beryl included) [Multiple purchase discount available]

[On sale 8/15 at 10 PM JST] Colombian Emerald Gacha featuring Shimizu Kisaki's 8mm Clover In-cut (regularly 79,800 JPY) - only 15 stones available! (Bonus green beryl included) [Multiple purchase discount available] Sale price¥6,980
March birthstone, aquamarine rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners}

March birthstone, aquamarine rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners} Sale price¥3,980
[Limited to 26 gems] Indian Kerala Chrysoberyl Cat's Eye (neon green-yellow color / mini size) [Multiple purchase discount available]

[Limited to 26 gems] Indian Kerala Chrysoberyl Cat's Eye (neon green-yellow color / mini size) [Multiple purchase discount available] Sale price¥1,580
Single loose Russian oil-free emerald (1.6-1.7mm, princess cut) {Multiple purchase discounts available}

Single loose Russian oil-free emerald (1.6-1.7mm, princess cut) {Multiple purchase discounts available} Sale price¥9,800
April birthstone Morganite rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners}

April birthstone Morganite rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners} Sale price¥3,980
《Limited to 10 Stones》Beautiful Pink Brazilian Morganite Loose Stone 《Bulk Purchase Discount Available》

《Limited to 10 Stones》Beautiful Pink Brazilian Morganite Loose Stone 《Bulk Purchase Discount Available》 Sale price¥2,980
Limited to 9 stones: 1 Brazilian Santa Maria aquamarine (round cut, approx. 3.2mm) Multiple purchase discounts available

Limited to 9 stones: 1 Brazilian Santa Maria aquamarine (round cut, approx. 3.2mm) Multiple purchase discounts available Sale price¥5,980

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.