Madagascar

【8/30 22時販売】マダガスカル産サファリン 0.164ctルース鑑別書 Sale price¥12,800

【8/30 22時販売】マダガスカル産サファリン 0.145ctルース鑑別書 Sale price¥11,800

【8/29 22時販売】マダガスカル産アンダリュサイト 0.454ctルース 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

Grandidierite from Madagascar 0.264ct loose stone Sale price¥79,800

[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

[12555446] White topaz 3.619ct loose stone Sale price¥8,800

【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

[12564014 listed] Madagascar Royal Blue Sapphire 0.559ct Loose Stone Sale price¥45,800

[Posted on 12563959] Madagascar Padparadscha Sapphire 0.164ct Loose Stone Sale price¥36,800

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） 0.459ctルース

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

[#202607 Akihabara Popup Exhibit] [Published in 12563402] Petzottaite, Madagascar, 0.188ct Loose Sale price¥35,800

[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

[Sale on 7/ at 10 PM] "Limited to 13 Stones" Madagascar Sapphirine, average 0.09ct "Multiple Purchase Discount Available" Sale price¥4,580

Apatite from Madagascar 0.608ct Loose Stone Sale price¥8,800

Madagascar Padparadscha Sapphire 3.4mm/0.208ct Loose Gem with Central Gem Laboratory Appraisal Sale price¥45,800

Madagascar Paparadscha Sapphire 3.5mm/0.234ct Loose Stone, Central Gem Lab certified Sale price¥49,800

[Posted on 12563480] Madagascar Teal Green Sapphire 0.470ct Loose Stone Sale price¥29,800

0.522ct bicolor sapphire loose stone from Madagascar Sale price¥6,980

[Limited to 15 Stones] Madagascar Grandidierite 1 Stone Loose (Average 0.065ct) with All Stone Certificates of Authenticity [Multiple Purchase Discount Available] Sale price¥9,800

《Limited to 11 Stones》Madagascar Apatite 1 Stone Loose (UV Fluorescent Type, Average 1.0ct) 《Multiple Purchase Discount Available》 Sale price¥2,980

[Listed 12563403] Petzottaite from Madagascar 0.200ct Loose Sale price¥29,800

[Lottery Sale_0612_01] Madagascar Bekily Blue Garnet (Color Change Garnet) 0.542ct Loose Sale price¥55,800

Madagascar padparadscha sapphire 3.3mm/0.156ct loose stone (with CGL certificate) Sale price¥29,800

Madagascar Padparadscha Sapphire 4.5mm/0.416ct Loose Gemstone, Central Gemology Laboratory certified Sale price¥98,000

Madagascar Paparadscha Sapphire 3.4mm/0.252ct Loose Stone With CGL Certificate Sale price¥45,800

0.323ct loose pezzottaite from Madagascar Sale price¥49,800

Sold out

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） 0.582ctルース

0.582ct Loose Andesine-Labradorite from Madagascar (Common Name: Rainbow Moonstone)

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） 1.440ctルース

1.440 ct loose andesine-labradorite (commonly known as rainbow moonstone) from Madagascar Sale price¥25,800

Madagascar sapphire 0.448ct loose stone Sale price¥15,800

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） 0.807ctルース

0.807ct Loose Andesine-Labradorite from Madagascar (Common Name: Rainbow Moonstone) Sale price¥8,800

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） 0.619ctルース

Madagascar Andesine-Labradorite (commonly known as Rainbow Moonstone) 0.619 ct Loose Stone Sale price¥6,980

Madagascar Canary Yellow Chrysoberyl 0.569ct Loose Stone with Certificate Sale price¥9,800

《Limited to 12 Stones》Madagascar Andesine-Labradorite (Rainbow Moonstone & Blue Moonstone) 2-Stone Set (Average 0.60ct)《Multiple Purchase Discount Available》 Sale price¥3,980

Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases. Sale price¥2,980

Madagascar Apatite Cat's Eye 1.734ct Loose Stone Nichisaiko Sale price¥9,800

Madagascar bicolor sapphire 3.7mm/0.271ct loose Sale price¥6,980

Spessartite Garnet from Madagascar 1.053ct loose stone Sale price¥29,800

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） 0.585ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.585ct loose stone Sale price¥12,800

Madagascar Labradorite 0.823ct Loose Stone Sale price¥7,980

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.