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誕生石一覧

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Ruby 0.194ct loose Sale price¥8,800

K18 Tanzanite 1.0ct Ring Sale price¥79,800

Sold out 「起源がわかる 宝石大全」初版&宝石小瓶 2点セット
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 ※
Sold out 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}
Sold out Dragon Garnet 1 stone (3.0mm, round cut)《Discount available for multiple purchases》
Sold out 「決定版 アンカットダイヤモンド」サイン入り初版本 &ダイヤモンド原石(グリーン蛍光)2点セット
Sold out Ametrine 1 stone (approximately 60~70ct)《Discount available for multiple purchases》
Sold out Blue moonstone (pyramid cut, 5 x 5 mm, 4 x 4 mm) 2 stone set《Discount available for multiple purchases》
Sold out 【猫カット】アメジスト(8mm) - カラッツSTORE
Sold out 含浸ルビー・天然ルビー見分け2点セット - KARATZ STORE|カラッツSTORE
Sold out [Jeweler's Tools] {3 sets remaining} 3-piece set: Jewelry loupe (14x magnification), blue diamond, and pink tourmaline or sapphire
Sold out Pink Diamond Gacha! 💎 Fancy Light Pink Diamond 0.117ct (Certified) Includes One UV-Resistant Pink Diamond (Multiple Purchase Discounts Available)
Sold out 【宝石商の道具】冷却ヒビ入れ染色クォーツ・天然エメラルド見分け2点セット - KARATZ STORE|カラッツSTORE
Sold out Brazilian Paraiba Tourmaline (1.0mm, top quality)《Multiple purchase discount available》
Sold out 1 Ethiopian Opal (Baroque)《Discount available for multiple purchases》

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.