Login

¥50,000 - ¥100,000

Sort by
Blue Garnite from Nigeria 0.514ct Ruth Japanese-German Edition

Blue Garnite from Nigeria 0.514ct Ruth Japanese-German Edition Sale price¥59,800
スモーキークォーツ 27.511ctルース

[Sakura Incut] Smoky Quartz 22mm/27.511ct Loose Japanese-German Edition Sale price¥98,000
アメトリン 8.308ctルース

[Camellia Cut] Ametrine 14mm/8.308ct Loose Stone Sale price¥89,800
エメラルド 2.498ctルース

[Clover in cut] Emerald 9mm/2.498ct {Collaboration} Loose with patch Sale price¥98,000
コロンビア産エメラルド 2.018ctルース

[Koshu precious stone cutter pluethree] Colombian emerald 2.018ct loose Sale price¥98,000
オーストラリア産シェルオパール 53.277ct原石

Australian shell opal 53.277ct rough stone Sale price¥59,800
【ムーンシュタイナー】パイライトインクォーツ 18.288ctルース

[Moonsteiner] Pyrite in Quartz 18.288ct Loose Sale price¥59,800
オーストラリア産シェルオパール（貝オパール） 96.177ct原石

Australian shell opal (shell opal) 96.177ct rough stone Sale price¥69,800
Bicolor Sphalerite 9.8mm/4.517ct loose

Bicolor Sphalerite 9.8mm/4.517ct loose Sale price¥69,800
ピンクダイヤモンド 0.073ルース(FANCY DEEP PURPLISH PINK, SI1)

Pink Diamond 0.073 Loose (FANCY DEEP PURPLISH PINK, SI1) Sale price¥88,800
ミャンマー産カラーチェンジジルコン 1.00ctルース（リバースカラーチェンジ）

[Shinjuku Marui Annex 202511] Myanmar Color Change Zircon 1.00ct Loose Stone (Reverse Color Change) Sale price¥69,800
ターフェアイト 0.700ctルース

Taaffeite from Myanmar 0.70ct loose GIT guide Sale price¥59,800
スリランカ産ツインスターサファイア 3.003ctルース

Twin star sapphire from Sri Lanka 3.003ct loose (Violet star sapphire) Sale price¥59,800
スリランカ産ツインスターサファイア 3.858ctルース

Twin star sapphire from Sri Lanka 3.858ct loose (black star sapphire) Sale price¥59,800
スリランカ産ツインスターサファイア 2.523ctルース

Twin star sapphire from Sri Lanka 2.523ct loose Sale price¥98,000
クリソベリルキャッツアイ 0.591ctルース

Twin chrysoberyl cat's eye 0.591ct loose Sale price¥69,800
グリーントルマリン 6.069ctルース

Green tourmaline 6.069ct loose (marron cut) Japanese-German book Sale price¥69,800
ヘミモルファイト 9.468ctルース

Hemimorphite 9.468ct loose (published in books and gemstone encyclopedias) Sale price¥69,800
【カメリアカット】カラーシフトアメジスト 20mm/26.815ct《コラボ》ルース ワッペン付

[Camellia cut] Color shift amethyst 20mm/26.815ct 《Collaboration》 Loose with emblem Sale price¥69,800
【甲州貴石切子plusthree】ダルメシアンクォーツ 70.155ctルース《コラボ》 ワッペン付

[Koshu precious stone Kiriko plusthree] Dalmatian quartz 70.155ct loose "Collaboration" with patch Sale price¥59,800
K18WGクリノヒューマイト1.79ct ・ダイヤモンドペンダントトップ（ネックレストップ）

[Colorful] K18WG Clinohumite 1.79ct ・Diamond Pendant Top (Necklace Top) Japanese-German Edition Sale price¥69,800
ジンバブエ産バイカラーユークレース 0.197ctルース

Bicolor Euclase from Zimbabwe 0.197ct loose Sale price¥88,800
ジンバブエ産バイカラーユークレース 0.211ctルース

Bicolor Euclase from Zimbabwe 0.211ct loose Sale price¥98,000
モザンビーク産パライバトルマリン 0.414ctルース

Paraiba tourmaline from Mozambique 0.414ct loose Sale price¥55,800
Pomme Blanche "Semi-custom ring setting"

Pomme Blanche "Semi-custom ring setting" Sale price¥99,800
Spiritosa (no side stones) {Semi-custom ring setting}

Spiritosa (no side stones) {Semi-custom ring setting} Sale price¥89,800
アメトリン 9.238ctルース

[Dandelion cut] Ametrine 14mm/9.238ct loose Sale price¥59,800
【クローバーインカット】コロンビア産エメラルド 8mm/1.663ctルース《コラボ》 ワッペン付

[Clover in-cut] Colombian emerald 8mm/1.663ct loose "Collaboration" with patch Sale price¥88,800
パイライトインクォーツ 8.099ctルース

[Moonsteiner] Pyrite in Quartz 8.099ct Sale price¥59,800
【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）

[Mr. Sanjay] Mexican water opal 3.161ct loose (Contrarus opal) Sale price¥69,800
Bicolor Benitoite 0.130ct loose (emerald cut)

Bicolor Benitoite 0.130ct loose (emerald cut) Sale price¥65,800
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
【12546132掲載】スリランカ産スターサファイア（4条） 1.473ctルース

Sri Lankan star sapphire (4 rows) 1.473ct loose Sale price¥79,800
イエローダイヤモンド 0.291ctルース(FANCY INTENSE ORANGY YELLOW, SI2)

Yellow diamond 0.291ct loose (FANCY INTENSE ORANGY YELLOW, SI2) Sale price¥64,800
ツインスターサファイア 4.975ct原石

Twin Star Sapphire from Ratnapura, Sri Lanka 4.975ct loose stone (twin star sapphire) Sale price¥98,000
Pink diamond 2.4mm/0.055ct loose (FANCY LIGHT PURPLE PINK, SI2)

Pink diamond 2.4mm/0.055ct loose (FANCY LIGHT PURPLE PINK, SI2) Sale price¥69,800
Pink diamond 2.4mm/0.071ct loose (FANCY LIGHT PURPLE PINK, SI2)

Pink diamond 2.4mm/0.071ct loose (FANCY LIGHT PURPLE PINK, SI2) Sale price¥98,000
Pink diamond 2.2mm/0.041ct loose (FANCY LIGHT PURPLE PINK, SI2)

Pink diamond 2.2mm/0.041ct loose (FANCY LIGHT PURPLE PINK, SI2) Sale price¥57,800
Pink diamond 2.3mm/0.055ct loose (FANCY LIGHT PURPLE PINK, SI2)

Pink diamond 2.3mm/0.055ct loose (FANCY LIGHT PURPLE PINK, SI2) Sale price¥79,800
Pink diamond 2.2mm/0.043ct loose (FANCY LIGHT PURPLISH PINK, SI2)

Pink diamond 2.2mm/0.043ct loose (FANCY LIGHT PURPLISH PINK, SI2) Sale price¥59,800
Mexican Water Opal 2.623ct Loose (Contralus Opal)

Mexican Water Opal 2.623ct Loose (Contralus Opal) Sale price¥55,800
Diamond 0.777ct loose (butterfly cut)

Diamond 0.777ct loose (butterfly cut) Sale price¥77,777
【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
ダイヤモンド 0.348ctルース(I, SI1)

Diamond 0.348ct loose (I, SI1) Sale price¥59,800
ピンクダイヤモンド 0.191ctルース(VERY LIGHT ORANGY PINK, SI2)

Pink diamond 0.191ct loose (VERY LIGHT ORANGY PINK, SI2) Sale price¥59,800
K18タンザナイト1ct リング - KARATZ STORE｜カラッツSTORE

[Shinjuku Marui Annex 202511] 18K Tanzanite 1.0ct Ring Sale price¥79,800
Sold out [Sales End on Monday, October 13th] TV Anime "The Apothecary Diaries" x KARATZ Collaboration Neko Neko Model Ring

[Sales End on Monday, October 13th] TV Anime "The Apothecary Diaries" x KARATZ Collaboration Neko Neko Model Ring

Sold out [Sales End on Monday, October 13th] TV Anime "The Apothecary Diaries" x KARATZ Collaboration Jinji Model Ring

[Sales End on Monday, October 13th] TV Anime "The Apothecary Diaries" x KARATZ Collaboration Jinji Model Ring

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.