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¥5,000 - ¥10,000

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合成ルチル 6mm/1.061ctルース

Synthetic rutile 6mm/1.061ct loose Sale price¥8,800
デンドリティックアゲート 7.179ctルース

Dendritic Agate 7.179ct loose Sale price¥9,800
デンドリティックアゲート 3.721ctルース

Dendritic Agate 3.721ct loose Sale price¥5,980
デンドリティックアゲート 4.533ctルース

Dendritic Agate 4.533ct loose Sale price¥6,980
デンドリティックアゲート 6.449ctルース

Dendritic Agate 6.449ct loose Sale price¥9,800
Dendritic Agate 6.456ct loose

Dendritic Agate 6.456ct loose Sale price¥9,800
デンドリティックアゲート 3.505ctルース

Dendritic Agate 3.505ct loose Sale price¥5,980
【パンダカット】ローズクォーツ 5.081ctルース

[Panda cut] Rose quartz 5.081ct loose Sale price¥8,800
【パンダカット】ホワイトクォーツ（ミルキークォーツ） 4.477ctルース

[Panda cut] White quartz (milky quartz) 4.477ct loose Sale price¥8,800
【パンダカット】ムーンストーン 5.476ctルース

[Panda cut] Moonstone 5.476ct loose Sale price¥8,800
《有楽町202302持ち出し中》ルビー 0.194ctルース - カラッツSTORE

Ruby 0.194ct loose Sale price¥8,800
ルビー 0.472ctルース

[On sale at 10pm on September 22nd] Tanzanian Ruby 0.472ct 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 0.791ctルース

Cornel pin cat's eye 0.791ct loose Sale price¥8,800
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
【12539391掲載】コーネルピンキャッツアイ 0.980ctルース

Cornel pin cat's eye 0.980ct loose Sale price¥6,980
クリソベリルキャッツアイ 1.080ctルース

Chrysoberyl cat's eye 1.080ct loose Sale price¥8,800
ローズクォーツ 18.410ctルース（パイナップルカット）

Rose quartz 18.410ct loose (pineapple cut) Sale price¥9,800
グリーンクォーツ 10.330ctルース（パイナップルカット）

Green quartz 10.330ct loose (pineapple cut) Sale price¥6,980
【12533740掲載】コーネルピン 0.890ct原石

Cornerpine 0.890ct rough stone Sale price¥5,980
ピンクオパール 7.180ctルース

Pink opal 7.180ct loose Sale price¥8,800
【12530558掲載】アンダリュサイト 0.480ctルース

Andalusite 5mm/0.480ct loose Sale price¥5,980
シーブルーカルセドニー 6.964ctルース

Sea blue chalcedony 6.964ct loose Sale price¥7,980
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

Additional fee: 7,500 yen Sale price¥7,500

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
Sold out [Jeweler's tools] 4-piece set including loupe (10x magnification), tweezers, and 2 loose stones

[Jeweler's tools] 4-piece set including loupe (10x magnification), tweezers, and 2 loose stones

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] Collection set of 24 loose cases, 3 loose cases [cut by Mr. KEN, worth 8,000 yen]

[Jeweler's Tools] Collection set of 24 loose cases, 3 loose cases [cut by Mr. KEN, worth 8,000 yen]

Sold out 【再入荷】鉱物標本スタンドとサンストーンorアイオライトの2点セット - KARATZ STORE｜カラッツSTORE

[Restocked] 2-piece set of mineral specimen stand and sunstone or iolite

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 「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

"Definitive Uncut Diamond" by Kyoichi Suwa, signed first edition & 2-piece set of diamonds (hexagonal cut)

Sold out Red spinel rough stone 1 stone (raspberry color)《Discount available for multiple purchases》

Red spinel rough stone 1 stone (raspberry color)《Discount available for multiple purchases》

Sold out Cobalt Garnite 1 stone (discount available for multiple purchases)

Cobalt Garnite 1 stone (discount available for multiple purchases)

Sold out 【猫カット】アメジスト（8mm） - カラッツSTORE

[Cat cut] Amethyst (8mm)

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

[Jeweler's Tools] 2-piece set for distinguishing impregnated rubies and natural rubies (discount available for multiple purchases)

Sold out ブルーベリル（マシシベリル）＆ミントグリーンベリル2石セット

[Resale] Blue Beryl (Mashishi Beryl) & Mint Green Beryl 2 stone set《Multiple purchase discount available》

Sold out Pink Diamond Gacha! 💎 Fancy Light Pink Diamond 0.117ct (Certified) Includes One UV-Resistant Pink Diamond (Multiple Purchase Discounts Available)

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

[Jeweler's Tools] Cooling Cracked Dyed Quartz/Natural Emerald Identification 2-piece Set (Discount available for multiple purchases)

Sold out Gem gacha cut by Shimizu Kiseki and Yoichi Fukazawa 💎 {Multiple purchase discounts available} {Halloween specials included}

Gem gacha cut by Shimizu Kiseki and Yoichi Fukazawa 💎 {Multiple purchase discounts available} {Halloween specials included}

Sold out Gem Gacha💎 Trapiche Diamond (Sliced ​​Diamond) 1 stone {Multiple purchase discount available}

Gem Gacha💎 Trapiche Diamond (Sliced ​​Diamond) 1 stone {Multiple purchase discount available}

Sold out 1 Brazilian Paraiba tourmaline stone (cabochon cut, average 0.25 ct)

1 Brazilian Paraiba tourmaline stone (cabochon cut, average 0.25 ct)

Sold out 1 loose sapphire from Ratnapura, Sri Lanka (3.0mm-4.0mm, trilliant cut)《Multiple purchase discount available》

1 loose sapphire from Ratnapura, Sri Lanka (3.0mm-4.0mm, trilliant cut)《Multiple purchase discount available》

Sold out 《限定12石》ブラジル産ラズライト（天藍石）1石ルース（初心者向け）《複数購入割引有》

1 stone loose Brazilian lazurite (for beginners)

Sold out 《残り4石》ジェムガチャ💎ジンバブエ産ソーヤブルダイヤモンド1石（正八面体,VS~SIクラス相当） - カラッツSTORE

Gem Gacha💎1 Zimbabwe sawable diamond (regular octahedron, VS~SI class equivalent)

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.