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アフガニスタン産ブルートルマリン 0.326ctルース

Blue tourmaline from Afghanistan 4.5mm/0.326ct loose Sale price¥7,980
Felspar 3.330ct loose from Sri Lanka

Felspar 3.330ct loose from Sri Lanka Sale price¥8,800
アメリカ産ノンオイルレッドベリル 0.060ctルース GIA

[11/10 22:00 Sale] Oil-free American red beryl 0.060ct loose GIA Sale price¥128,000
マダガスカル産シルキーピンクサファイア 1.050ctルース GIT

[11/10 22:00 Sale] Silky Pink Sapphire from Madagascar 1.050ct Loose GIT Sale price¥128,000
モザンビーク産ルビー 3.4mm/0.139ctルース

[11/10 22:00 Sale] Mozambique Ruby 3.4mm/0.139ct Loose Sale price¥25,800
コロンビア産ノンオイルエメラルド 0.290ctルースGIA

Colombian oil-free emerald 0.290ct loose GIA Sale price¥188,000
[On sale November 8th at 10pm] Limited to 4 stones: Carving Gacha (pink tourmaline, average 3.4 carats) 1 loose stone [Multiple purchase discounts available]

[On sale November 8th at 10pm] Limited to 4 stones: Carving Gacha (pink tourmaline, average 3.4 carats) 1 loose stone [Multiple purchase discounts available] Sale price¥3,980
[On sale November 8th at 10pm] Limited to 9 stones: Carving Gacha (Opal, Tourmaline, Tsavorite Garnet) 1 loose stone [Multiple purchase discounts available]

[On sale November 8th at 10pm] Limited to 9 stones: Carving Gacha (Opal, Tourmaline, Tsavorite Garnet) 1 loose stone [Multiple purchase discounts available] Sale price¥2,980
[On sale November 8th at 10pm] Limited to 7 stones: One loose Indian iolite sunstone (custom cut by Sanjay) [Multiple purchase discounts available]

[On sale November 8th at 10pm] Limited to 7 stones: One loose Indian iolite sunstone (custom cut by Sanjay) [Multiple purchase discounts available] Sale price¥5,980
[On sale November 8th at 10pm] Limited to 8 stones: Synthetic Alexandrite Loose Stone (Custom cut by Mr. Sanjay, Shield cut, Octagonal cut, etc.) [Multiple purchase discounts available]

[On sale November 8th at 10pm] Limited to 8 stones: Synthetic Alexandrite Loose Stone (Custom cut by Mr. Sanjay, Shield cut, Octagonal cut, etc.) [Multiple purchase discounts available] Sale price¥6,980
Yellow sapphire from Madagascar 0.232ct loose

Yellow sapphire from Madagascar 0.232ct loose Sale price¥6,980
マダガスカル産イエローサファイア 0.207ctルース

Yellow sapphire from Madagascar 0.207ct loose Sale price¥6,980
Madagascar sapphire 0.205ct loose

Madagascar sapphire 0.205ct loose Sale price¥7,980
ブラジル産インディゴライトトルマリン 0.210ctルース 鑑別書

[On Sale 11/9 at 10pm] Brazilian Indigolite Tourmaline 0.210ct Loose Stone with Certificate of Authenticity Sale price¥9,800
エチオピアサンストーン 0.505ctルース

[11/9 22:00 Sale] Ethiopian Sunstone 0.505ct Loose Sale price¥8,800
Sold out 【猫カット】タイ産サファイア 5.255ctルース

[11/9 22:00 Sale] [Cat Cut] Thai Sapphire 5.255ct Loose
タンザニア産アルマンディンガーネット 2.897ctルース

[12/3 22:00] Tanzanian Almandine Garnet 2.897ct Loose Stone Sale price¥22,800
シンシャ（辰砂・シナバー） 0.459ctルース

[On Sale 11/27 at 10 PM] Chinese Cinnabar 0.459ct Loose Stone with Certificate of Authenticity Sale price¥12,800
シンシャ（辰砂・シナバー） 0.700ctルース

[On Sale 11/27 at 10 PM] Chinese Cinnabar 0.700ct Loose Stone with Certificate of Authenticity Sale price¥18,800
[12/7 22:00] Chinese Cinnabar 1.062ct Loose Stone with Certificate of Authenticity

[12/7 22:00] Chinese Cinnabar 1.062ct Loose Stone with Certificate of Authenticity Sale price¥18,800
マダガスカル産スフェーン 1.864ctルース

[12/1 22:00 Sale] Madagascar Sphene 1.864ct Loose Stone Sale price¥45,800
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） 0.732ctルース

[On Sale 11/27 at 10 PM] Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture, 5.5mm/0.732ct Loose Stone (Rose Cut) Sale price¥5,980
チベット産アンデシン 2.769ctルース

[11/27 22:00] Tibetan Andesine 2.769ct Loose Stone (Pixel Cut) Sale price¥9,800
ブラジル産スイスブルートパーズ 13.287ctルース

[11/27 22:00 Sale] Brazilian Swiss Blue Topaz 13.287ct Loose Sale price¥18,800
アフガニスタン産ハックマナイト 0.177ctルース

[11/22 22:00] Afghanistan Hackmanite 0.177ct Loose Stone Sale price¥14,800
[12/5 22:00] Russian Phenakite 6.6mm/1.058ct Loose Stone

[12/5 22:00] Russian Phenakite 6.6mm/1.058ct Loose Stone Sale price¥39,800
ロシア産フェナカイト 0.520ctルース

[11/13 22:00 Sale] Russian Phenakite 0.520ct Loose Stone Sale price¥24,800
ロシア産デマントイドガーネット（ホーステール認む） 0.162ctルース

[On Sale 11/20 at 10 PM] Russian Demantoid Garnet (Horsetail Certified) 3.3mm/0.162ct Loose Stone Sale price¥39,800
[12/5 22:00] Mozambique Almandine Garnet 3.073ct Loose Stone

[12/5 22:00] Mozambique Almandine Garnet 3.073ct Loose Stone Sale price¥25,800
アルマンディンガーネット 2.972ctルース

[11/20 22:00 Sale] Tanzanian Almandine Garnet 2.972ct Loose Stone Sale price¥18,800
ロードライトガーネット 3.486ctルース

[11/20 22:00 Sale] Tanzanian Rhodolite Garnet 3.486ct Loose Stone Sale price¥24,800
ロードライトガーネット 0.843ctルース

[11/22 22:00] Tanzanian Rhodolite Garnet 0.843ct Loose Stone Sale price¥9,800
アルマンディンガーネット 1.564ctルース

[11/20 22:00 Sale] Tanzanian Almandine Garnet 1.564ct Loose Stone Sale price¥12,800
[12/5 22:00] Tanzanian Rhodolite Garnet 0.967ct Loose Stone

[12/5 22:00] Tanzanian Rhodolite Garnet 0.967ct Loose Stone Sale price¥9,800
ロードライトガーネット 0.903ctルース

[On Sale 11/22 10pm] Tanzanian Rhodolite Garnet 5.3mm/0.903ct Loose Stone Sale price¥9,800
[12/5 22:00] Tanzanian Rhodolite Garnet 1.890ct Loose Stone

[12/5 22:00] Tanzanian Rhodolite Garnet 1.890ct Loose Stone Sale price¥12,800
Green sapphire from Madagascar 0.199ct loose

Green sapphire from Madagascar 0.199ct loose Sale price¥6,980
Yellow sapphire from Madagascar 0.181ct loose

Yellow sapphire from Madagascar 0.181ct loose Sale price¥4,980
Ice blue sapphire from Madagascar 0.181ct loose

Ice blue sapphire from Madagascar 0.181ct loose Sale price¥6,980
タンザニア産コーネルピン 0.228ctルース

[Posted 12544254] Cornel pin 0.228ct loose Sale price¥18,800
Brazilian bicolor tourmaline 1.764ct loose

Brazilian bicolor tourmaline 1.764ct loose Sale price¥32,800
Brazilian bicolor tourmaline 1.565ct loose

Brazilian bicolor tourmaline 1.565ct loose Sale price¥19,800
ティンカーベルクォーツ（ピンクファイヤークォーツ） 1.664ctルース（ファセットカット）

Tinker Bell Quartz (Pink Fire Quartz) 1.664ct Loose (Faceted Cut) Sale price¥12,800
ブラジル産ブルートルマリン 0.376ctルース

Brazilian blue tourmaline 0.376ct loose Sale price¥7,980
デンドリティッククォーツ 7.997ctルース

Dendritic quartz 7.997ct loose Sale price¥6,980
【サンジェ氏】ピンクトルマリン 1.404ctルース

Pink tourmaline 1.404ct loose stone Sale price¥12,800
トパーズキャッツアイ 1.105ctルース

[Posted 12539379] Topaz cat's eye from Sri Lanka 1.105ct loose Sale price¥15,800
エンスタタイト 1.877ctルース

[Posted 12539378] Enstatite 1.877ct loose from Sri Lanka Sale price¥29,800

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.