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スリランカ産イエローサファイア 0.517ctルース

Sri Lankan Yellow Sapphire 0.517ct Loose Gemstone Sale price¥12,800
【12562858掲載】ベトナム産ルビー 1.758ctルース

1.758 ct Ruby Loose Stone from Vietnam with Identification Report Sale price¥49,800
カンボジア産ブルージルコン（ラタナキリブルー） 23.105ctルース 鑑別書

Cambodian Blue Zircon (Ratanakiri Blue) 23.105ct Loose Gemstone with Certificate Sale price¥498,000
エメラルド 15.219ctルース 日独鑑

Natural Emerald from Brazil, 15.219 ct, Loose Stone, Nichidoku Identification Report Sale price¥398,000
《Tucson New Arrival - Limited to 8 Stones》Zambian Canary Yellow Tourmaline Average 0.47ct《Bulk Purchase Discount Available》

《Tucson New Arrival - Limited to 8 Stones》Zambian Canary Yellow Tourmaline Average 0.47ct《Bulk Purchase Discount Available》 Sale price¥7,980
イエローダイヤモンド 0.188ctルース(FANCY INTENSE YELLOW, VS1)

Yellow diamond 0.188ct loose (FANCY INTENSE YELLOW, VS1) Sale price¥47,800
Mozambique Ruby 0.544ct Loose Stone with Certificate of Authenticity

Mozambique Ruby 0.544ct Loose Stone with Certificate of Authenticity Sale price¥39,800
Myanmar Color Change Zircon 5.3mm/1.043ct Loose Stone

Myanmar Color Change Zircon 5.3mm/1.043ct Loose Stone Sale price¥69,800
Limited to 9 stones: 1 rough petalite stone from Myanmar (average 6.0 carats) Multiple purchase discounts available

Limited to 9 stones: 1 rough petalite stone from Myanmar (average 6.0 carats) Multiple purchase discounts available Sale price¥2,980
【KEN氏】ジルコン 1.008ctルース - カラッツSTORE

1.008ct Tanzanian orange zircon loose stone Sale price¥9,800
アキシナイト 0.500ctルース

Pakistani Axinite 0.500ct loose stone (green tint) Sale price¥12,800
Limited to 9 stones: 1 Brazilian green beryl loose stone. Discounts available for multiple purchases.

Limited to 9 stones: 1 Brazilian green beryl loose stone. Discounts available for multiple purchases. Sale price¥3,580
Limited to 6 stones: 1 loose Madagascar needle-in topaz (average 2.1 carats) Multiple purchase discounts available

Limited to 6 stones: 1 loose Madagascar needle-in topaz (average 2.1 carats) Multiple purchase discounts available Sale price¥4,980
マダガスカル産アンデシン・ラブラドライト（通称名 レインボームーンストーン） 1.911ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 1.911ct loose stone Sale price¥39,800
Limited to 8 stones: Swiss blue topaz (4mm, rose cut) 1 loose stone. Discounts available for multiple purchases.

Limited to 8 stones: Swiss blue topaz (4mm, rose cut) 1 loose stone. Discounts available for multiple purchases. Sale price¥3,980
Brazilian rhodonite 1.423ct loose stone

Brazilian rhodonite 1.423ct loose stone Sale price¥29,800
カナダ産ユーディアライト 2.796ctルース

[Listed on 12562258] Eudialyte from Canada 2.796 ct loose stone Sale price¥39,800
スイートホーム産ロードクロサイト 0.100ctルース 鑑別書

[On sale August 2nd at 10 PM JST] Sweet Home Mine Rhodochrosite 0.100ct Loose Gemstone with Certificate Sale price¥8,800
カンボジア産ブルージルコン 8.5mm/3.546ctルース 鑑別書

[12563993] Cambodian Blue Zircon 3.546ct Loose Sale price¥69,800
Pt850 ベネチアンチェーン ネックレス 約45cm スライドチェーン

【On sale August 1st at 10 PM】[Colorfle] Pt850 Venetian Chain Necklace, Approx. 45cm, Adjustable Slide Chain Sale price¥39,800
Pt900 ビルマ産ルビー 1.07ct・ダイヤモンド0.32ctリング GIA

[22602674 Listed] [Karafuri] Pt900 Burma Ruby 1.07ct Ring Sale price¥258,000
K18 ブルーサファイア 1.13ct・ダイヤモンド0.75ctリング 鑑別書

[On Sale August 6, 10 PM] [Colori] K18 Blue Sapphire 1.13ct / Diamond 0.75ct Ring with Appraisal Report Sale price¥188,000
Pt850 ルビー 0.85ct・ダイヤモンド0.09ctリング 鑑別書

[On sale at 10 PM on August 6] [Karafuri] Pt850 Ruby 0.85ct, Diamond 0.09ct Ring with Appraisal Certificate Sale price¥79,800
コロンビア産パイライト・雲母インエメラルド 1.192ctルース 鑑別書

Colombian Pyrite, Mica in Emerald 1.192ct Loose Stone with Certificate Sale price¥79,800
コロンビア産パイライト・雲母インエメラルド 4.8mm/0.360ctルース 鑑別書

[Sale on 8/6 at 10 PM JST] Colombian Pyrite and Mica in Emerald, 4.8mm/0.360ct, Loose Stone with Certificate Sale price¥29,800
コロンビア産トラピッチェエメラルド 0.252ctルース

[On sale August 1, 10 PM] Colombian Cosquez Trapiche Emerald 0.252ct Loose Stone with Certificate Sale price¥35,800
コロンビア産トラピッチェエメラルド 0.231ctルース

[On sale August 1, 10 PM JST] Colombian Cosquez Trapiche Emerald, 0.231 ct, Loose Stone with Certificate Sale price¥33,800
コロンビア・コスケス産トラピッチェエメラルド 0.199ctルース 鑑別書

[On sale August 14th at 10 PM] Colombian Cosquez Trapiche Emerald, 0.199ct Loose Stone with Appraisal Sale price¥29,800
カンボジア産ブルージルコン（ラタナキリブルー） 1.847ctルース

【On Sale August 1st, 10 PM JST】Cambodian Blue Zircon (Ratanakiri Blue) 1.847ct Loose Stone with Certificate Sale price¥22,800
アフガニスタン産グリーンアウイナイト 0.062ctルース 鑑別書

Afghan Green Hauyne 0.062ct Loose with Certificate Sale price¥16,800
ナイジェリア産マンダリンガーネット 0.750ctルース

0.750ct Loose Nigerian Mandarin Garnet with Certification Sale price¥22,800
ブラジル産メデューサクォーツ（パライバクォーツ） 0.456ctルース

[12558272 listed] Brazilian Medusa Quartz (Paraiba Quartz) 0.456ct Loose Sale price¥9,800
ゴールデンジルコン 0.752ctルース

0.752ct Tanzanian Golden Zircon Loose Gemstone with Certificate Sale price¥12,800
ナミビア産ジェレメジェバイト 0.089ctルース 鑑別書

[Listed as 12563891] Namibian Jeremejevite 0.089ct Loose Sale price¥22,800
ブラジル産アレキサンドライト 0.102ctルース 鑑別書

Brazilian Alexandrite 0.102ct Loose Stone with Certification Sale price¥29,800
マダガスカル産ブルーサファイア 0.662ctルース

[Sales start August 2nd at 10 PM] Madagascar blue sapphire 0.662 ct loose gemstone with a certificate Sale price¥18,800
コロンビア産エメラルド 0.107ctルース

[On sale August 2 at 10 PM] Colombian Emerald 0.107 ct Loose Gemstone with Certificate Sale price¥12,800
オーストラリア産ブラックオパール 0.702ctルース

[On sale August 1 at 10 PM] Australian black opal 0.702 ct loose stone with certificate Sale price¥29,800
スリランカ産ホワイトサファイア 1.025ctルース 鑑別書

1.025ct Loose White Sapphire from Sri Lanka with Gemological Report Sale price¥35,800
アフガニスタン産グリーンアウイナイト 0.150ctルース

Afghan Green Hauyne 0.150ct Loose Stone with Certificate Sale price¥55,800
Pt900 アコヤ真珠（アコヤパール）10.2mm・ダイヤモンド0.23ctリング 鑑別書

[Published in 22602657] [Colorful] Pt900 Akoya Pearl Ring Sale price¥98,000
ネパール産カイヤナイト 2.461ctルース

Nepalese Kyanite 2.461ct Loose Stone Sale price¥12,800
奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 3.219ctルース

Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture, 3.219ct Loose Stone Sale price¥24,800
ブラジル産ピンクインペリアルトパーズ 1.907ctルース 日独鑑

[Listed as 12562727] Pink Imperial Topaz 1.907ct Loose Stone Sale price¥118,000
マラウイ産バイカラージルコン 2.08ctルース 鑑別書

[Posted as 12562691] Malawi Bicolor Zircon 2.082ct Loose Sale price¥128,000
Pt900 インペリアルトパーズ 3.88ct・ダイヤモンド0.26ct リング 鑑別書

【Karahuri】Pt900 Imperial Topaz 3.88ct / Diamond 0.26ct Ring with Certificate Sale price¥258,000
ピンクダイヤモンド 2.2mm/0.044ctルース(FANCY LIGHT PURPLE PINK, SI1)

Pink Diamond 2.2mm/0.044ct Loose (FANCY LIGHT PURPLE PINK, SI1) Sale price¥39,800
ダイヤモンド 3.0mm/0.105ctルース(F, VVS2, VeryGood)

Diamond 3.0mm/0.105ct Loose (F, VVS2, VeryGood) Sale price¥19,800

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.