Login

Ruth

Sort by
coming soon 【1/11 22時販売】《限定6石》カメリアカットのオレゴンサンストーン8.0mmを含むサンストーンガチャ1石ルース（平均1.60ct）《複数購入割引有》

【1/11 22時販売】《限定6石》カメリアカットのオレゴンサンストーン8.0mmを含むサンストーンガチャ1石ルース（平均1.60ct）《複数購入割引有》 Sale price¥5,980

coming soon [1/11 22:00 Sale] Tanzanian Violet Sapphire 0.920ct Loose

[1/11 22:00 Sale] Tanzanian Violet Sapphire 0.920ct Loose Sale price¥39,800

coming soon [On Sale at 10 PM on January 11th] Mozambique Ruby 0.544ct Loose Stone with Certificate of Authenticity

[On Sale at 10 PM on January 11th] Mozambique Ruby 0.544ct Loose Stone with Certificate of Authenticity Sale price¥39,800

coming soon [1/11 22:00 Sale] Brazilian Green Tourmaline 4.345ct Loose Stone

[1/11 22:00 Sale] Brazilian Green Tourmaline 4.345ct Loose Stone Sale price¥69,800

coming soon [1/11 22:00 Sale] Tanzanite from Tanzania 2.777ct Loose Stone

[1/11 22:00 Sale] Tanzanite from Tanzania 2.777ct Loose Stone Sale price¥98,000

coming soon Myanmar color change zircon 1.043ct loose stone

Myanmar color change zircon 1.043ct loose stone Sale price¥69,800

coming soon [12559052] Brazilian Blue Tourmaline 0.827ct Loose

[12559052] Brazilian Blue Tourmaline 0.827ct Loose Sale price¥19,800

coming soon [12559009] Tanzanian Kornerupine 0.103ct Loose Stone

[12559009] Tanzanian Kornerupine 0.103ct Loose Stone Sale price¥12,800

coming soon [12559002] Cambodian Blue Zircon (Ratanakiri Blue) 0.674ct Loose Stone

[12559002] Cambodian Blue Zircon (Ratanakiri Blue) 0.674ct Loose Stone Sale price¥15,800

coming soon [12558122] Afghanistan blue tourmaline 0.268ct loose stone

[12558122] Afghanistan blue tourmaline 0.268ct loose stone Sale price¥12,800

coming soon [1/11 22:00 Sale] Brazilian Dumortierite in Quartz 0.382ct Loose Stone

[1/11 22:00 Sale] Brazilian Dumortierite in Quartz 0.382ct Loose Stone Sale price¥9,800

Sold out [12/29 22:00 Sale] Madagascar Grandidierite 0.169ct Loose Stone

[12/29 22:00 Sale] Madagascar Grandidierite 0.169ct Loose Stone

Sold out [1/1 10pm Sale] Indian Parrot Chrysoberyl Cat's Eye 5.0mm/1.099ct Loose Stone

[1/1 10pm Sale] Indian Parrot Chrysoberyl Cat's Eye 5.0mm/1.099ct Loose Stone

Sold out [On Sale at 10 PM on January 9th] Brazilian Medusa Quartz (Paraiba Quartz) 0.848ct ​​Loose Stone

[On Sale at 10 PM on January 9th] Brazilian Medusa Quartz (Paraiba Quartz) 0.848ct ​​Loose Stone

Sold out [1/4 22:00 Sale] Unheated Star Ruby from Myanmar 0.617ct Loose

[1/4 22:00 Sale] Unheated Star Ruby from Myanmar 0.617ct Loose

Sold out [1/1 22:00 Sale] Royal Blue Sapphire 1.00ct Loose Stone AIGS

[1/1 22:00 Sale] Royal Blue Sapphire 1.00ct Loose Stone AIGS

Sold out [On Sale at 10 PM on December 30th] Brazilian Paraiba Tourmaline 0.128ct Loose Stone (CuO: 1.7%, MnO: 3.4%)

[On Sale at 10 PM on December 30th] Brazilian Paraiba Tourmaline 0.128ct Loose Stone (CuO: 1.7%, MnO: 3.4%)

Sold out [12/30 22:00 Sale] German Auchenite 3.1mm/0.100ct Loose Stone

[12/30 22:00 Sale] German Auchenite 3.1mm/0.100ct Loose Stone

Sold out [12/30 22:00 Sale] Brazilian Pyrite in Quartz 9.477ct Loose Stone

[12/30 22:00 Sale] Brazilian Pyrite in Quartz 9.477ct Loose Stone

Sold out [Available at 10 PM on January 3rd] Limited to 13 stones: Beryl Gacha (including Koshu Kiriko Aquamarine Vortex Cut) 1 loose stone [Multiple purchase discounts available]

[Available at 10 PM on January 3rd] Limited to 13 stones: Beryl Gacha (including Koshu Kiriko Aquamarine Vortex Cut) 1 loose stone [Multiple purchase discounts available]

KARATZのオーダーメイド

KARATZで見つけたお気に入りの宝石を、オーダーメイドのジュエリーに加工しませんか？製作を手がけるのは日本の熟練職人。
一石一石、宝石の個性に合わせて石座から丁寧にジュエリーを作ります。

KARATZ・５つのこだわり

多くの方が宝石を身近に感じ、気軽に楽しめるように。
KARATZの商品に対する思い、宝石選定やジュエリー制作におけるこだわり、取り組みなどについてご紹介します。

KARATZの取り組みと社会貢献

業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。

KARATZの書籍

KARATZが執筆や監修、企画に携わった書籍たち。宝石をさまざまな角度から楽しめる書籍ばかりです。直接ご購入もいただけます。

宝石商の道具

宝石をもっと楽しみたいけど、どんな道具を使えば良いか分からない方へ。KARATZスタッフも愛用する道具をご紹介。直接ご購入もいただけます。