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ホワイトトパーズ 1.140ctルース

White topaz 1.140ct loose Sale price¥5,980
【サンジェ氏】メキシコ産ウォーターオパール 3.161ctルース（コントラルスオパール）

Mexican Water Opal 3.161ct Loose Stone (Contraluz Opal) Sale price¥69,800
ブラジル産デュモルチェライトインクォーツ 1.186ctルース

Brazilian dumortierite in quartz 1.186ct loose (faceted cut) Sale price¥12,800
ブラジル産デュモルチェライトインクォーツ 2.625ctルース

Brazilian dumortierite in quartz 2.625ct loose (faceted cut) Sale price¥26,800
ブラジル産デュモルチェライトインクォーツ 1.971ctルース

Brazilian dumortierite in quartz 1.971ct loose (faceted cut) Sale price¥19,800
ブラジル産デュモルチェライトインクォーツ 1.390ctルース

Brazilian dumortierite in quartz 1.390ct loose (faceted cut) Sale price¥15,800
ブラジル産デュモルチェライトインクォーツ 1.573ctルース

Brazilian dumortierite in quartz 1.573ct loose (faceted cut) Sale price¥18,800
ブラジル産グリーン・スポジュメン 2.033ctルース

Benitoite 2.2mm/0.229ct loose Sale price¥57,800
Andalusite 0.604ct loose

Andalusite 0.604ct loose Sale price¥6,980
合成モアッサナイト 0.372ctルース

Synthetic moissanite 0.372ct loose Sale price¥9,800
ミントカラートルマリン 0.115ctルース

Mint color tourmaline 0.115ct loose Sale price¥5,980
ピンクトルマリン 1.690ctルース

Pink tourmaline 1.690ct loose Sale price¥39,800
【カメリアカット】オパール 5.283ctルース

[Camellia cut] Opal 14mm/5.283ct loose with patch Sale price¥98,000
スリランカ産クリソベリルキャッツアイ 5.176ctルース

Chrysoberyl cat's eye from Sri Lanka 5.176ct loose Sale price¥198,000
タンザニア産パープルゾイサイト 3.758ct原石

Purple zoisite 3.758ct rough stone from Tanzania Sale price¥29,800
パープルスピネル 0.754ctルース

Purple spinel 0.754ct loose Sale price¥9,800
ブルースピネル 1.949ctルース

Blue spinel 1.949ct loose Sale price¥29,800
ラベンダースピネル 0.305ctルース

Lavender spinel 0.305ct loose Sale price¥7,980
イギリス産ロジャリーフローライト 1.841ctルース

British Rosary Fluorite 1.841ct loose Sale price¥5,980
コーネルピンキャッツアイ 0.513ctルース

Cornel pin cat's eye 0.513ct loose Sale price¥6,980
コーネルピンキャッツアイ 0.872ctルース

Cornel pin cat's eye 0.872ct loose Sale price¥6,980
タンザナイト 1.360ctルース

Tanzanite 1.360ct loose stone Sale price¥49,800
ダイヤモンド 0.348ctルース(I, SI1)

Diamond 0.348ct loose (I, SI1) Sale price¥59,800
【12530283掲載】カンテラオパール 17.221ctルース

Cantera opal 17.221ct loose Sale price¥25,800
スキャポライトキャッツアイ 8.880ctルース

Scapolite Cat's Eye 8.880ct Loose Sale price¥8,800
Euparite 193g

Euparite 193g Sale price¥39,800

Additional fee: 7,500 yen Sale price¥7,500
[Made to order] "Rhino Ring" by special modeling artist Masatoshi Asami {Exhibited at Ueno Marui}

[Made to order] "Rhino Ring" by special modeling artist Masatoshi Asami {Exhibited at Ueno Marui} Sale price¥158,000

Additional charge for resizing: 9,750 yen Sale price¥9,750

Additional charge for resizing: 6,750 yen Sale price¥6,750

Additional charge for resizing: 8,250 yen Sale price¥8,250

Additional charge for resizing: 9,000 yen Sale price¥9,000

Additional fee: +1,000 yen Sale price¥1,000
Sold out セボンスター-×KARATZコラボ　ペンダント　プレシャスモデル

[In Commemoration of Ametalk! Appearance | 4-Day Limited Sale | Ends 7/5 (Sun)] Adult Cebo Star Vol. 1 Pendant Silver Model (SV925)

Sold out 宝石研磨に挑戦してみよう「自分で出来る原石磨きセット」（初心者向け：フローライト・アパタイト2石セット）

Let's try gem polishing "Do-it-yourself rough stone polishing set" (for beginners: fluorite/apatite 2 stone set)

Sold out セボンスター-×KARATZコラボ　リング　プレシャスモデル

[Commemorating their appearance on Ame Talk! | Limited to 4 days | Sales end on Sunday, July 5th] Adult Cest Bon Star Vol. 1 Ring Silver Model (SV925)

Sold out 【お子様限定】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」（フローライト・宝石アイシングクッキー付き）

[For kids] Let's try gem polishing "Do-it-yourself rough stone polishing set" (includes fluorite and gemstone icing cookies) *Subject to gemstone polishing contest*

Sold out 宝石研磨に挑戦してみよう「自分で出来る原石磨きセット」（中級者向け：アンデシン）

Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for intermediate users: iolite rough stone)
Sold out [Sales start on Friday, August 8th at 22:00] TV anime "Date A Live V" x KARATZ collaboration foil-stamped glitter can badges

[Sales start on Friday, August 8th at 22:00] TV anime "Date A Live V" x KARATZ collaboration foil-stamped glitter can badges

Sold out 【Sales end on Monday, August 31st】Adult Sebonstar Adjuster Charm

【Sales end on Monday, August 31st】Adult Sebonstar Adjuster Charm

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 [Jeweler's Tools] 3 black light loose pieces (ruby, red spinel rough, oil-in-quartz) with rechargeable battery

[Jeweler's Tools] 3 black light loose pieces (ruby, red spinel rough, oil-in-quartz) with rechargeable battery

Sold out 【売り切れ】カラッツオリジナル鑑別書用アルバム・ルース1個[ケン氏カットのレアストーン] - KARATZ STORE｜カラッツSTORE

[Final Sale] [Jeweler's Tools] Karatz Original Album Loose 1 Piece [KEN Cut 1 Stone]

Sold out [Sales start on Friday, August 8th at 22:00] TV anime "Date A Live V" x KARATZ collaboration foil-stamped glitter can badges

[Sales start on Friday, August 8th at 22:00] TV anime "Date A Live V" x KARATZ collaboration foil-stamped glitter can badges

Sold out Let's try polishing gemstones with the "Do-it-yourself gemstone polishing kit" (for intermediate users: Andesine Labradorite from Madagascar)

Let's try polishing gemstones with the "Do-it-yourself gemstone polishing kit" (for intermediate users: Andesine Labradorite from Madagascar)

Sold out [Sales start on 9/25 (Thu) 22:00] TV anime "Date A Live V" x KARATZ collaboration Yatogami Tohka model ring

[Sales start on 9/25 (Thu) 22:00] TV anime "Date A Live V" x KARATZ collaboration Yatogami Tohka model ring

Sold out Let's try polishing gemstones with the "Do-it-yourself gemstone polishing kit" (for intermediate users: Illusion Sunstone)

Let's try polishing gemstones with the "Do-it-yourself gemstone polishing kit" (for intermediate users: Illusion Sunstone)
Sold out [Sales End on Monday, January 12th] TV Anime "Tokyo Ghoul" x KARATZ Collaboration Kaneki Rinkaku Image Ring & Pendant | Silver (SV925)

[Sales End on Monday, January 12th] TV Anime "Tokyo Ghoul" x KARATZ Collaboration Kaneki Rinkaku Image Ring & Pendant | Silver (SV925)

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.