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K18WG ターコイズ 15.78ct/15.73ct ピアス 鑑別書

[Featured in 22602706] [Calafuri] K18WG Turquoise Earrings Sale price¥24,800
K18YG アイドクレース/ベスビアナイト 0.908ct・ダイヤモンド0.19ctリング 鑑別書

[Lottery Sale 0731_13] [Colorfury] K18YG Idocrase 0.908ct Ring with appraisal report Sale price¥128,000
[Published on 22602652] [Colorful] K18 Synthetic Opal Pendant Top

[Published on 22602652] [Colorful] K18 Synthetic Opal Pendant Top Sale price¥16,800
Pt900 スターサファイア 0.744ct・ダイヤモンド0.167ctリング 鑑別書

【22602701掲載】【Karafuri】Pt900 Star Sapphire 0.744ct Ring Sale price¥128,000
Pt900 マンダリンガーネット 1.15ct・ダイヤモンド0.11ctペンダントトップ（ネックレストップ） 鑑別書

[22602704 Posted] [Colorful] Pt900 Mandarin Garnet 1.15ct Pendant Top Sale price¥110,000
Pt900 ロンドンブルーダイヤモンド 0.13ct・ダイヤモンド0.40ctリング 鑑別書

[Published in 22602703] [Kalafull] Pt900 Ice Blue Diamond (Treated) 0.13ct Ring Sale price¥98,000
Pt900合成アレキサンドライト0.41ct・ダイヤモンド0.54ctリング 鑑別書

[Lottery Sale 0812_08] Pt900 Synthetic Alexandrite and 0.54ct Diamond Ring with Certificate Sale price¥128,000
Pt900ブラジル産シーフォームトルマリン 4mm/0.32ct ・ダイヤモンド0.16ctペンダントトップ（ネックレストップ）鑑別書

[Lottery Sale 0812_04] Pt900 Brazilian Seafoam Tourmaline 4mm/0.32ct and Diamond 0.16ct Pendant Top (Necklace Top) with Identification Report Sale price¥79,800
Pt900 モザンビーク産ルビー 4mm/0.3ct ・ダイヤモンド0.16ctペンダントトップ（ネックレストップ）鑑別書

[Lottery Sale 0812_05] Pt900 Mozambique Ruby 4mm/0.3ct and Diamond 0.16ct Pendant Top (Necklace Top) with Identification Report Sale price¥59,800
ミャンマー産ペリドット 3.748ctルース（スター効果有り）

[Posted 12549460] Star peridot from Myanmar 3.748ct loose Sale price¥19,800
ミャンマー産ペリドット 5.973ctルース（スター効果有り）

[Updated 12546024] Ametrine 4.206ct loose Sale price¥39,800
《再入荷》【宝石商の道具】ゲルタックケース3個セット《透明・黒背景の2種類有》（ブルーサファイア3石付） - カラッツSTORE

[Jeweler's Tools] Set of 3 gel tack cases (2 types: transparent and black background) (includes 3 blue sapphires) (discount available for multiple purchases) Sale price¥3,980
H&C（ハート&キューピッド）専用スコープ（ダイヤモンド 専用スコープ) - カラッツSTORE

[Jeweler's Tools] H&C (Heart & Cupid) Special Scope (Diamond Special Scope) Sale price¥1,580
Ice blue diamond 1.2mm or 2.0mm 1 stone (VS class equivalent, round cut) {Multiple purchase discount available}

Ice blue diamond 1.2mm or 2.0mm 1 stone (VS class equivalent, round cut) {Multiple purchase discount available} Sale priceFrom ¥4,980
"PSYCHO-PASS" x KARATZ collaboration jewelry: Shogo Makishima razor design ring (amethyst)

"PSYCHO-PASS" x KARATZ collaboration jewelry: Shogo Makishima razor design ring (amethyst) Sale priceFrom ¥25,800
"PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring with Inspector Design [Ginoza Nobuchika Model] "London Blue Topaz"

"PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring with Inspector Design [Ginoza Nobuchika Model] "London Blue Topaz" Sale priceFrom ¥25,800
Lab-Grown Diamond (Synthetic Diamond) [HPHT Method] Single Loose Stone (2.0mm, 2.2mm, 2.4mm, 2.6mm) [Multiple Purchase Discounts Available]

Lab-Grown Diamond (Synthetic Diamond) [HPHT Method] Single Loose Stone (2.0mm, 2.2mm, 2.4mm, 2.6mm) [Multiple Purchase Discounts Available] Sale priceFrom ¥1,580
【一律1000円】アメリカ産・ハーキマーダイヤモンド（ロッククリスタル）1石 原石

[Flat rate 1000 yen] 1 American Herkimer diamond (rock crystal) rough stone (discount available for multiple purchases) Sale price¥1,000
H&C (Heart & Cupid) Diamond 2.0mm Loose (VS Class, DG Class, 2mm Melee Diamonds) {Multiple Purchase Discounts Available}

H&C (Heart & Cupid) Diamond 2.0mm Loose (VS Class, DG Class, 2mm Melee Diamonds) {Multiple Purchase Discounts Available} Sale price¥7,980
ベリリウム拡散処理サファイア1石（約2.5mm,ラウンドカット）

1 beryllium diffused sapphire stone (approximately 2.5mm, round cut)《Multiple purchase discounts available》 Sale price¥1,580
"PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring with Inspector Design [Tsunemori Akane Model] (Pink Diamond)

"PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring with Inspector Design [Tsunemori Akane Model] (Pink Diamond) Sale priceFrom ¥29,800
1 stone of Brazilian blue tourmaline (3 x 4 mm pear shape/oval cut/3 x 5 mm pear shape/4 x 5 mm oval cut)《Discount available for multiple purchases》

1 stone of Brazilian blue tourmaline (3 x 4 mm pear shape/oval cut/3 x 5 mm pear shape/4 x 5 mm oval cut)《Discount available for multiple purchases》 Sale priceFrom ¥2,980
H&C (Hearts & Cupids) Diamond 1.2mm Loose (VS Class, DG Class, Melee Diamonds) {Multiple Purchase Discounts Available}

H&C (Hearts & Cupids) Diamond 1.2mm Loose (VS Class, DG Class, Melee Diamonds) {Multiple Purchase Discounts Available} Sale price¥3,980
1 Dragon Garnet (3.5mm, round cut) {Multiple purchase discounts available}

1 Dragon Garnet (3.5mm, round cut) {Multiple purchase discounts available} Sale price¥3,980
ピンクオパール・ブルーオパール2石セット（小・大サイズ） - KARATZ STORE｜カラッツSTORE

Pink opal/blue opal 2 stone set (small/large size)《Discount available for multiple purchases》 Sale priceFrom ¥1,980
1 Ruby from Greenland (round cut, 1.2mm)《Discount available for multiple purchases》

1 Ruby from Greenland (round cut, 1.2mm)《Discount available for multiple purchases》 Sale price¥2,280
Raw peridot + 2 loose stones set (August birthstone)《Discount available for multiple purchases》

Raw peridot + 2 loose stones set (August birthstone)《Discount available for multiple purchases》 Sale price¥2,980
1 American Herkimer Diamond (rock crystal) 💎 (child-bearing type)《Multiple purchase discount available》

1 American Herkimer Diamond (rock crystal) 💎 (child-bearing type)《Multiple purchase discount available》 Sale price¥2,980
1 Dragon Garnet (4.0mm, round cut)

1 Dragon Garnet (4.0mm, round cut) Sale price¥5,980
グリーンダイヤモンド（トリートメント）1石（約1.3mm)

Green Diamond (Treatment) 1 stone (approx. 1.3mm)《Multiple purchase discount available》 Sale price¥3,580
Limited to 33 stones: 1 rough Arizona turquoise with pyrite (December birthstone) Multiple purchase discounts available

Limited to 33 stones: 1 rough Arizona turquoise with pyrite (December birthstone) Multiple purchase discounts available Sale price¥1,000
H&C(ハート&キューピッド)ダイヤモンド1.2mmルース - カラッツSTORE

H&C (Hearts & Cupids) Diamond 1.5mm Loose (VS Class, DG Class, Melee Diamonds) {Multiple Purchase Discounts Available} Sale price¥4,980
クッションカットのブラジル産インペリアルトパーズ1石ルース（3mm）《複数購入割引有》

Cushion cut Brazilian imperial topaz 1 stone loose (3mm)《Multiple purchase discount available》 Sale price¥5,980
Limited Edition Tucson Lucky Dip Gems 💎 Guaranteed 1 stone from 8 types (Benitoite, Anthill Garnet, Dumortierite in Quartz, Eudialyte, etc.) 《Multi-purchase discount available》

Limited Edition Tucson Lucky Dip Gems 💎 Guaranteed 1 stone from 8 types (Benitoite, Anthill Garnet, Dumortierite in Quartz, Eudialyte, etc.) 《Multi-purchase discount available》 Sale price¥3,980
ネパール産オーシャンブルーカイヤナイト＋ブルーカイヤナイト2石セット《複数購入割引有》

Limited to 20 sets: Nepalese Ocean Blue Kyanite + Blue Kyanite 2-stone set (Multiple purchase discounts available) Sale price¥3,980
1 blue fluorescent diamond (H&C, 3EX, VS-SI class equivalent, 2.0mm) {Multiple purchase discount available}

1 blue fluorescent diamond (H&C, 3EX, VS-SI class equivalent, 2.0mm) {Multiple purchase discount available} Sale price¥8,980
スリランカ産サファイア《ラトゥナプラ》1石ルース(平均0.75ct)

Gem Gacha💎 Sri Lankan Sapphire《Ratnapura》1 loose stone (average 0.75ct)《Multiple purchase discount available》 Sale price¥5,980
"PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device Image Ring - Enforcer Design [Yayoi Rokuitsuka Model] "Ice Blue Sapphire"

"PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device Image Ring - Enforcer Design [Yayoi Rokuitsuka Model] "Ice Blue Sapphire" Sale priceFrom ¥25,800
"PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring - Enforcer Design [Tomoki Masatsugu Model] "Moonstone"

"PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring - Enforcer Design [Tomoki Masatsugu Model] "Moonstone" Sale priceFrom ¥25,800
《Limited to 18 Stones》Brazilian Paraiba Tourmaline Gacha with Sorting (CuO: 2.1%, MnO: 2.2%) Normally 45,800 JPY《Multiple Purchase Discount Available》

《Limited to 18 Stones》Brazilian Paraiba Tourmaline Gacha with Sorting (CuO: 2.1%, MnO: 2.2%) Normally 45,800 JPY《Multiple Purchase Discount Available》 Sale price¥9,800
{For beginners} Gem gacha💎 1 loose gemstone (Chrome tourmaline, Mahenge spinel, etc.) cut by Sri Lankan craftsman Sanjay {Multiple purchase discounts available}

{For beginners} Gem gacha💎 1 loose gemstone (Chrome tourmaline, Mahenge spinel, etc.) cut by Sri Lankan craftsman Sanjay {Multiple purchase discounts available} Sale price¥3,980
コロンビア産エメラルド ルース・原石2石セット（ラウンドカット3mm）

Colombian emerald loose rough stone set of 2 stones (round cut 3mm)《Multiple purchase discount available》 Sale price¥6,980
Limited to 20 stones: Brazilian Paraiba tourmaline (cabochon cut, approximately 2.2 mm) [Multiple purchase discounts available]

Limited to 20 stones: Brazilian Paraiba tourmaline (cabochon cut, approximately 2.2 mm) [Multiple purchase discounts available] Sale price¥9,800
Diamond (Old Mine Cut) 1 Loose Stone {Multiple Purchase Discounts Available}

Diamond (Old Mine Cut) 1 Loose Stone {Multiple Purchase Discounts Available} Sale price¥4,980
[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"

[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available" Sale price¥12,800
<<Limited to 18 Stones>> Golden Hill Turquoise from Kazakhstan (Turquoise, December Birthstone, Average 1.3ct) <<Multiple Purchase Discount Available>>

<> Golden Hill Turquoise from Kazakhstan (Turquoise, December Birthstone, Average 1.3ct) <> Sale price¥2,980
Limited to 14 stones: Beryllium-heated sapphire (3.5mm, KEN cut) - 1 loose stone. Discounts available for multiple purchases.

Limited to 14 stones: Beryllium-heated sapphire (3.5mm, KEN cut) - 1 loose stone. Discounts available for multiple purchases. Sale price¥1,580
Limited to 25 stones: 1 Brazilian Santa Maria aquamarine (round cut, approx. 3.0 mm) Multiple purchase discounts available

Limited to 25 stones: 1 Brazilian Santa Maria aquamarine (round cut, approx. 3.0 mm) Multiple purchase discounts available Sale price¥5,980

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.