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[While supplies last, same-day shipping] TV anime "I went to a mixer and there were no girls there" x KARATZ collaboration swaying keychain

[While supplies last, same-day shipping] TV anime "I went to a mixer and there were no girls there" x KARATZ collaboration swaying keychain Sale price¥880
Limited to 13 stones: Namibian Jeremejevite (Elemejevite) 1 stone loose stone (Multiple purchase discounts available)

Limited to 13 stones: Namibian Jeremejevite (Elemejevite) 1 stone loose stone (Multiple purchase discounts available) Sale price¥5,980
Officially licensed product: Yokohama DeNA Baystars home blue ring - double type | SV925, sea blue chalcedony, white chalcedony

Officially licensed product: Yokohama DeNA Baystars home blue ring - double type | SV925, sea blue chalcedony, white chalcedony Sale price¥35,800

Additional charge for resizing: +3,000 yen Sale price¥3,000
Pt850 プラチナ ベネチアンチェーン 0.9mm - KARATZ STORE｜カラッツSTORE

Pt850 Platinum Venetian Chain 0.9mm [40cm/45cm free] Sale priceFrom ¥25,800
Petalite 1 stone loose (6mm, round cut)《Multiple purchase discount available》

Petalite 1 stone loose (6mm, round cut)《Multiple purchase discount available》 Sale price¥2,580
ピンクアメジスト1石（チェッカーボードカット,約10ct,14×14mm）

1 stone pink amethyst (checkerboard cut, approx. 10ct, 14 x 14mm)《Discount available for multiple purchases》 Sale price¥4,980
コロンビア産エメラルドキャッツアイ1石ルース（平均0.35ct)《初めての方向け》

Colombian emerald cat's eye 1 stone loose (average 0.35ct)《For first-time users》《Multiple purchase discount available》 Sale price¥12,800
《Limited to 10 stones》 Indian bag site 1 stone loose (average 2ct)《Multiple purchase discount available》

《Limited to 10 stones》 Indian bag site 1 stone loose (average 2ct)《Multiple purchase discount available》 Sale price¥6,980
Limited to 25 stones: 1 unheated yogo sapphire rough stone. Discounts available for multiple purchases.

Limited to 25 stones: 1 unheated yogo sapphire rough stone. Discounts available for multiple purchases. Sale price¥4,980
[Limited to 7 stones] Oregon Sunstone from the United States (cabochon cut, average 1.5ct) [Multiple purchase discount available]

[Limited to 7 stones] Oregon Sunstone from the United States (cabochon cut, average 1.5ct) [Multiple purchase discount available] Sale price¥2,980
Myanmar gray spinel, platinum spinel (2mm, round cut) 1 loose stone {Multiple purchase discount available}

Myanmar gray spinel, platinum spinel (2mm, round cut) 1 loose stone {Multiple purchase discount available} Sale price¥5,980
Book "Jewelry Origami" (Supervised by KARATZ / In cooperation with the University of Tokyo Origami Circle and Orist)

Book "Jewelry Origami" (Supervised by KARATZ / In cooperation with the University of Tokyo Origami Circle and Orist) Sale price¥1,540
[Sales End on Sunday, August 31st] TV Anime "A Long Time Ago, Magical Girls and Evil Were Enemies" x KARATZ Collaboration Magical Girl Theme Necklace - Kagari Sparks Model -

[Sales End on Sunday, August 31st] TV Anime "A Long Time Ago, Magical Girls and Evil Were Enemies" x KARATZ Collaboration Magical Girl Theme Necklace - Kagari Sparks Model - Sale priceFrom ¥11,800

Additional fee +6,000 yen Sale price¥6,000
K18 イエローゴールド 小豆チェーン （アズキ） 0.9mm - KARATZ STORE｜カラッツSTORE

K18 Yellow Gold Red Bean Chain (Azuki Bean) 0.9mm [40cm/45cm free] Sale priceFrom ¥26,800
K18 イエローゴールド 小豆チェーン （アズキ） 1.4mm - KARATZ STORE｜カラッツSTORE

K18 Yellow Gold Red Bean Chain (Azuki Bean) 1.4mm [40cm/45cm free] Sale priceFrom ¥49,800
K18 イエローゴールド ベネチアンチェーン 0.7mm - KARATZ STORE｜カラッツSTORE

K18 yellow gold Venetian chain 0.7mm [40cm/45cm free] Sale priceFrom ¥28,800
Pt850 プラチナ ベネチアンチェーン 0.8mm - KARATZ STORE｜カラッツSTORE

Pt850 Platinum Venetian Chain 0.8mm [40cm/45cm free] Sale priceFrom ¥22,800
【石から選ぶセミオーダーペンダント枠】オリオン - KARATZ STORE｜カラッツSTORE

Orion "Semi-custom pendant frame" Sale price¥47,800
Fire Opal (Common Opal) 2 stone set《Discount available for multiple purchases》

Fire Opal (Common Opal) 2 stone set《Discount available for multiple purchases》 Sale price¥3,980
Brazilian alexandrite (average 0.12ct) loose (multiple purchase discount available)

Brazilian alexandrite (average 0.12ct) loose (multiple purchase discount available) Sale price¥19,800
1 loose Australian opal (heart shape, 4 x 4mm)《Discount available for multiple purchases》

1 loose Australian opal (heart shape, 4 x 4mm)《Discount available for multiple purchases》 Sale price¥3,980
Spiritosa (with side stones) {Semi-custom ring setting}

Spiritosa (with side stones) {Semi-custom ring setting} Sale price¥79,800
[Limited to 6 stones] [Mr. Sanjay] Mexican opal or Sri Lankan spinel 1 loose stone (with defects) [Multiple purchase discount available]

[Limited to 6 stones] [Mr. Sanjay] Mexican opal or Sri Lankan spinel 1 loose stone (with defects) [Multiple purchase discount available] Sale price¥3,980
Limited to 10 stones Mexican Cantera Opal 1 loose stone (10 x 8 cm) Multiple purchase discounts available

Limited to 10 stones Mexican Cantera Opal 1 loose stone (10 x 8 cm) Multiple purchase discounts available Sale price¥5,980
Limited to 6 stones: 1 loose, unheated silky pink sapphire from Vietnam (milky pink sapphire) Multiple purchase discounts available

Limited to 6 stones: 1 loose, unheated silky pink sapphire from Vietnam (milky pink sapphire) Multiple purchase discounts available Sale price¥5,980
Limited to 17 stones: 1 loose Afghanite stone from Afghanistan. Discounts available for multiple purchases.

Limited to 17 stones: 1 loose Afghanite stone from Afghanistan. Discounts available for multiple purchases. Sale price¥2,980
Set of 2 blue apatite stones from Madagascar (rough stone + loose stone) {Multiple purchase discounts available}

Set of 2 blue apatite stones from Madagascar (rough stone + loose stone) {Multiple purchase discounts available} Sale price¥2,980
Limited to 11 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.

Limited to 11 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases. Sale price¥3,980
Limited to 7 stones: 1 loose Sri Lankan spinel (lozenge cut) stone. Discounts available for multiple purchases.

Limited to 7 stones: 1 loose Sri Lankan spinel (lozenge cut) stone. Discounts available for multiple purchases. Sale price¥4,980
April birthstone Morganite rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners}

April birthstone Morganite rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners} Sale price¥3,980
January birthstone rhodolite garnet rough stone and loose stone set of 2 (from Zambia) {Multiple purchase discounts available} {For beginners}

January birthstone rhodolite garnet rough stone and loose stone set of 2 (from Zambia) {Multiple purchase discounts available} {For beginners} Sale price¥2,980
Limited to 15 stones! Green Oregon Sunstone rough stone from the United States 💎 Average 1.5ct [Multiple purchase discounts available]

Limited to 15 stones! Green Oregon Sunstone rough stone from the United States 💎 Average 1.5ct [Multiple purchase discounts available] Sale price¥5,980
Limited to 18 stones: YAG (Yttrium Aluminum Garnet) 1 loose stone (Canary Yellow, 4mm) Multiple purchase discounts available

Limited to 18 stones: YAG (Yttrium Aluminum Garnet) 1 loose stone (Canary Yellow, 4mm) Multiple purchase discounts available Sale price¥2,980
Limited Quantity: Colombian Mango Quartz (Small Size - Slim Type) Multiple Purchase Discounts Available

Limited Quantity: Colombian Mango Quartz (Small Size - Slim Type) Multiple Purchase Discounts Available Sale price¥1,180
Limited quantity: Colombian mango quartz (medium size) Multiple purchase discounts available

Limited quantity: Colombian mango quartz (medium size) Multiple purchase discounts available Sale price¥1,680
Limited to 18 stones: Mozambique ruby ​​(princess cut, 2.3-2.5mm) Multiple purchase discounts available

Limited to 18 stones: Mozambique ruby ​​(princess cut, 2.3-2.5mm) Multiple purchase discounts available Sale price¥3,980
Limited to 10 stones: 1 Ethiopian Sunstone rough stone (average 1.8 carats) Multiple purchase discounts available

Limited to 10 stones: 1 Ethiopian Sunstone rough stone (average 1.8 carats) Multiple purchase discounts available Sale price¥2,580
Limited to 14 stones: 1 Cambodian Ratanakiri Blue Zircon (4mm) Multiple purchase discounts available

Limited to 14 stones: 1 Cambodian Ratanakiri Blue Zircon (4mm) Multiple purchase discounts available Sale price¥5,980
TV anime "Shinkalion Change the World" x KARATZ collaboration Kuzuryu Ryota model

TV anime "Shinkalion Change the World" x KARATZ collaboration Kuzuryu Ryota model Sale priceFrom ¥16,800
Limited to 5 stones: 1 green zircon from Sri Lanka. Discounts available for multiple purchases.

Limited to 5 stones: 1 green zircon from Sri Lanka. Discounts available for multiple purchases. Sale price¥3,980
[Jeweler's Tools] Limited Edition Chelsea Color Filter Emerald 2-Piece Set

[Jeweler's Tools] Limited Edition Chelsea Color Filter Emerald 2-Piece Set Sale price¥6,980
Limited to 9 stones: 1 Afghan Lazurite in Sodalite loose stone (faceted cut, average 0.45ct) Multiple purchase discounts available

Limited to 9 stones: 1 Afghan Lazurite in Sodalite loose stone (faceted cut, average 0.45ct) Multiple purchase discounts available Sale price¥4,980
Limited to 13 stones Gem gacha💎 Beautiful colored tanzanite 7mm, special cut sphene, heliodor (lots of inclusions) 1 loose stone Multiple purchase discounts available

Limited to 13 stones Gem gacha💎 Beautiful colored tanzanite 7mm, special cut sphene, heliodor (lots of inclusions) 1 loose stone Multiple purchase discounts available Sale price¥4,980
Limited quantity: Mozambique grape garnet, 1 loose stone (4 x 6 mm, pear-shaped cut) Multiple purchase discounts available

Limited quantity: Mozambique grape garnet, 1 loose stone (4 x 6 mm, pear-shaped cut) Multiple purchase discounts available Sale price¥3,980
Limited to 9 stones Gem gacha💎 April birthstone gacha: A gacha where you can win a fan-cut diamond with AGT sorting or a morganite. Multiple purchase discounts available.

Limited to 9 stones Gem gacha💎 April birthstone gacha: A gacha where you can win a fan-cut diamond with AGT sorting or a morganite. Multiple purchase discounts available. Sale price¥3,980

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 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.