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誕生石一覧

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Sold out グリーンランド産ルビー 0.421ctルース

Ruby from Greenland 0.421ct loose with certificate
coming soon K18 翡翠（ヒスイ） 1.051ct ペンダントトップ（ネックレストップ）

[Listed 22602671] [Karahuri] K18 Jadeite (Jade) 1.051ct Pendant Top Sale price¥49,800
coming soon K18 グロッシュラーガーネット 0.26ctct ペンダントトップ（ネックレストップ）

[22602626 listed] [Kalafr] K18 Grossular Garnet 0.26ct Charm Sale price¥39,800
coming soon K18 合成オパール ペンダントトップ（ネックレストップ）

[Published on 22602652] [Colorful] K18 Synthetic Opal Pendant Top Sale price¥19,800
Sold out 「起源がわかる 宝石大全」初版＆宝石小瓶 2点セット

“An Encyclopedia of Gems that Understand the Origin” & Sapphire 2 Stone Set《Purchased in Chanthaburi, Thailand》

Sold out Dragon Garnet 1 stone (2.0mm, round cut)《Discount available for multiple purchases》

Dragon Garnet 1 stone (2.0mm, round cut)《Discount available for multiple purchases》
Sold out 【大人用】宝石磨きに挑戦してみよう「自分で出来る原石磨きセット」（初心者向け：バイカラーフローライト）・ボルダーオパール付※原石磨きコンテスト対象 ※

[For adults] Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for beginners: bicolor fluorite) with boulder opal *Subject to the rough stone polishing contest*

Sold out Diamond 2mm (VS class, DG color, round cut, melee diamond 2.0mm) 1 loose stone {Multiple purchase discounts available}

Diamond 2mm (VS class, DG color, round cut, melee diamond 2.0mm) 1 loose stone {Multiple purchase discounts available}
Sold out Gem Gacha💎 Cat Set (1 gemstone + 2 sapphires) {Multiple purchase discounts available}

Gem Gacha💎 Cat Set (1 gemstone + 2 sapphires) {Multiple purchase discounts available}

coming soon [Listed on 12563726] Sri Lankan Purple Sapphire 0.661ct Loose Stone

[Listed on 12563726] Sri Lankan Purple Sapphire 0.661ct Loose Stone Sale price¥59,800
coming soon 【Posted on 12562262】Brazilian Santa Maria Aquamarine 0.361ct Loose Stone

【Posted on 12562262】Brazilian Santa Maria Aquamarine 0.361ct Loose Stone Sale price¥25,800

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.