Madagascar

Madagascar Apatite 1.038ct Loose Sale price¥11,800

Madagascar Pink Tourmaline 0.543ct Loose Stone Sale price¥12,800

Madagascar White Topaz (Needle-in Topaz) 4.086ct Loose Sale price¥15,800

【11/3 22時販売】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） 0.349ctルース Sale price¥39,800

【11/3 22時販売】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） 0.398ctルース Sale price¥49,800

【11/3 22時販売】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） 0.365ctルース Sale price¥42,800

【11/3 22時販売】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） 0.470ctルース Sale price¥55,800

Madagascar Datolite (Datolite) 0.919ct Loose Stone Japan-Germany Exchange Sale price¥69,800

【Available 8/ 10 PM】《Limited to 11 stones》 Madagascar Andesine Labradorite (Rainbow Moonstone) 《Multiple purchase discount available》 Sale price¥1,580

【Available 10/22 at 22:00】《Limited to 15 stones》Andalusite Gacha, 0.44ct average《Multi-buy discounts available》 Sale price¥2,980

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

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

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

[Item 12564248] Madagascar Sapphire 0.385ct Loose Stone Sale price¥18,800

[Available Oct 10, 10:00 PM] Madagascar Apatite 0.300ct Loose Stone Sale price¥8,800

【9/ 22:00 Release】《Limited to 13 stones》 Bicolor Sapphire, Avg 0.27ct 《Multi-buy discount available》 Sale price¥7,980

[Available 9/27 at 10 PM] Madagascar Andesine-Labradorite (Common name: Blue Moonstone) 4.518ct Loose Stone Sale price¥29,800

[Available 9/20 at 10 PM] 《Limited to 13 stones》 1 Raw Madagascar Apatite stone (avg. 3.8ct) 《Multi-buy discount available》 Sale price¥1,580

[#202607 Akihabara Pop-up Store Takeout][Shinjuku Marui Annex 202605 Takeout][12548265 Listed] Padparadscha Sapphire 0.545ct Loose Stone Sale price¥69,800

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） 1.742ctルース

Andesine-Labradorite (commonly known as Rainbow Moonstone) from Madagascar, 1.742ct loose gemstone Sale price¥37,800

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） 0.521ctルース

[9/20 10:00 PM Release] Madagascar Andesine Labradorite (Common name: Rainbow Moonstone) 0.521ct Loose Stone Sale price¥8,800

【9/20 22:00 Release】 Madagascar Padparadscha Sapphire 3.6mm/0.281ct Loose Stone, DGL Certified Sale price¥35,800

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） 0.328ctルース

[Available 9/25 at 10 PM] Madagascar Andesine-Labradorite (Common name: Rainbow Moonstone) 0.328ct Loose Stone Sale price¥9,800

[Available 9/21 at 10 PM] Madagascar Iolite 0.870ct Loose Gemstone Sale price¥9,800

Madagascar sphene 0.665ct loose stone Sale price¥9,800

[Available 10/14 at 22:00] Madagascar Sphene 6.8mm/1.363ct Loose Gemstone with Appraisal Report Sale price¥19,800

K18 マダガスカル産パパラチアサファイア 4.3mm/0.412ct・ダイヤモンド0.57ctリング中宝鑑

[Lottery Sale 0812_11] K18 Madagascar Padparadscha Sapphire 0.412ct / Diamond 0.57ct Ring Sale price¥168,000

[Lottery Sale 0725_05] Madagascar Teal Blue Sapphire 0.748ct Loose Stone with Appraisal Sale price¥28,800

[Lottery Sale 0818_07] Madagascar Bi-Color Sapphire 1.870ct Loose Stone with Gem Identification Report Sale price¥79,800

[8/30 22:00 Release] Madagascar Sapphirine 0.164ct Loose Stone with Appraisal Certificate Sale price¥12,800

[Available 8/30 at 10:00 PM] Madagascar Sapphirine 0.145ct Loose Stone with Identification Report Sale price¥11,800

[Available 8/29 at 10 PM] Madagascar Andalusite 0.454ct Loose Gemstone Sale price¥7,980

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） 0.284ctルース

【#202607 Akihabara Pop-up, Currently Out of Stock】【12563254 Listed】Madagascar Bekily Blue Garnet (Color Change Garnet) 0.284ct Loose Sale price¥59,800

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） 0.116ctルース

【#202607 Akihabara Pop-up Store - Currently Displayed Off-site】【Listed as 12563184】Madagascar Andesine-Labradorite (Common Name: Rainbow Moonstone) 0.116ct Loose Gemstone Sale price¥14,800

【#202607 Akihabara Pop-up Store - Currently Removed from Stock】【12563063 Listed】Padparadscha Sapphire 0.619ct Loose Stone Sale price¥138,000

Royal blue sapphire 1.220ct loose stone Sale price¥258,000

[9/2, 10 PM release] Madagascar Padparadscha Sapphire 0.497ct Loose Stone, DGL Certified Sale price¥69,800

[9/2 10 PM Sale] Madagascar Sapphirine 0.166ct Loose Gemstone with Identification Report Sale price¥13,800

[On sale August 25, 10 PM JST] Madagascar Labradorite 8.7mm/2.651ct Rose-Cut Loose Gemstone Sale price¥9,800

[Sale starts August 25th at 10 PM JST] Madagascar Pezzottaite 2.7mm/0.062ct Loose Gemstone Sale price¥11,000

【12548939掲載】マダガスカル産ラズライトインクォーツ 1.600ctルース

Lazurite in quartz from Madagascar 7.5mm/1.600ct loose Sale price¥18,800

[#202607 Akihabara Pop-up Store - Currently Displayed] [12563067 Listed] Padparadscha Sapphire 0.649ct Loose Stone Sale price¥128,000

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） 0.459ctルース

[Lottery Sale 0707_08] Madagascar Bekily Blue Garnet (Color Change Garnet) 0.459ct Loose Stone with Certificate Sale price¥69,800

[Listed on 12563962] Madagascar Padparadscha Sapphire 0.314 ct Loose Stone Sale price¥69,800

[Sales start August 2nd at 10 PM] Madagascar blue sapphire 0.662 ct loose gemstone with a certificate Sale price¥18,800

[Lottery Sale 0521_08] Madagascar Sapphire 1.650ct Loose GIA Sale price¥158,000

[Sale starts 10PM on July 12] Limited 20 Stones: Grandidierite Single Stone Loose (Avg. 0.035ct) from Madagascar [Multiple Purchase Discount Available] Sale price¥3,980

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.