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Additional charge: K18YG (base metal) + 5,000 yen Sale price¥5,000
Ships in approximately 1 week: TV anime "The Apothecary Diaries" x KARATZ collaboration Neko Neko Prostitute earrings (single ear)

Ships in approximately 1 week: TV anime "The Apothecary Diaries" x KARATZ collaboration Neko Neko Prostitute earrings (single ear) Sale price¥24,800
Euperlite 1 stone approx. 10ct (Michigan, USA) {Multiple purchase discount}

Euperlite 1 stone approx. 10ct (Michigan, USA) {Multiple purchase discount} Sale price¥1,580
Solo (Simple Order Pinky Ring Frame)

Solo (Simple Order Pinky Ring Frame) Sale price¥44,800
【宝石商の道具】ペンライト（原石向け）・原石2点セット - KARATZ STORE｜カラッツSTORE

[Jeweler's Tools] Penlight (for rough stones), 2-piece set of rough stones Sale price¥4,980
合成モアッサナイト1石ルース（ミントグリーン,ペアシェイプカット,5×7mm)

Synthetic moissanite 1 stone loose (mint green, pear shape cut, 5 x 7 mm, moissanite)《Multiple purchase discount available》 Sale price¥3,980
"PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring with Enforcer Design [Kagari Shusei Model] "Orange-Brown Zircon"

"PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring with Enforcer Design [Kagari Shusei Model] "Orange-Brown Zircon" Sale priceFrom ¥25,800
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
Gem Gacha💎 Cat Set (1 gemstone + 2 sapphires) {Multiple purchase discounts available}

Gem Gacha💎 Cat Set (1 gemstone + 2 sapphires) {Multiple purchase discounts available} Sale price¥3,333
Diamond 1.2mm (VS class, DG color, round cut, melee diamond) 1 loose stone {Multiple purchase discounts available}

Diamond 1.2mm (VS class, DG color, round cut, melee diamond) 1 loose stone {Multiple purchase discounts available} Sale price¥1,980
TV anime "Shinkalion Change the World" x KARATZ collaboration postcard

TV anime "Shinkalion Change the World" x KARATZ collaboration postcard Sale price¥1,320
『Free!-the Final Stroke-』×KARATZコラボ　雫ペンダント

[Available from 10/1 at 10 PM] "Free! -the Final Stroke-" x KARATZ Collaboration Droplet Pendant (Silver) Sale price¥27,800
[Available from 10 PM on August 11th] Gemstone Encyclopedia Playing Cards + 4 Gemstones in a Gemstone Lucky Bag (Valued at 10,000 yen)

[Available from 10 PM on August 11th] Gemstone Encyclopedia Playing Cards + 4 Gemstones in a Gemstone Lucky Bag (Valued at 10,000 yen) Sale price¥6,000
化石採掘体験に挑戦してみよう「自分で出来る化石発掘体験セット」

Let's try the fossil mining experience "Do-it-yourself fossil excavation experience set" + bonus of fossil stickers, simple black light, and amber (copal) [Multiple purchase discounts available] Sale price¥2,980

Additional charge: K18YG (base metal) + 10,000 yen Sale price¥10,000
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：プレーナイト・葡萄石）

Let's try jewelry polishing "Do-it-yourself rough stone polishing set" (for intermediate users: playnite/grape stone) Sale price¥2,980
Book "Gemstone Encyclopedia" (KARATZ, editor: Keiichiro Koyama)

Book "Gemstone Encyclopedia" (KARATZ, editor: Keiichiro Koyama) Sale price¥2,640
"PSYCHO-PASS PROVIDENCE" x KARATZ collaboration SPINEL logo motif pendant

"PSYCHO-PASS PROVIDENCE" x KARATZ collaboration SPINEL logo motif pendant Sale price¥25,800
【5/20 22時販売】ユーパーライト 1石 （平均28ct）原石《複数購入割引有》 - カラッツSTORE

Euperlite 1 stone approx. 20ct-25ct (Michigan, USA) {Multiple purchase discount} Sale price¥1,980
[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 Sale priceFrom ¥22,800
『Free!-the Final Stroke-』×KARATZコラボ　イワトビちゃんペンダント

[Available at 10:00 PM on October 1st] "Free! -the Final Stroke-" x KARATZ Collaboration Iwatobi-chan Pendant (Silver) Sale price¥25,800
【石から選ぶセミオーダーリング枠】レガート - カラッツSTORE

Legato "Semi-custom ring setting" Sale price¥74,800
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：ホワイトラブラドライト）

Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for intermediate users: white labradorite) Sale price¥3,980

Bezel setting (Fukurin) + 5,000 yen Sale price¥5,000
TV anime "Shinkalion Change the World" x KARATZ collaboration acrylic key chain

TV anime "Shinkalion Change the World" x KARATZ collaboration acrylic key chain Sale price¥990
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
Indian Andesine Labradorite (hexagonal cut, 3 x 5mm) 1 stone (discount available for multiple purchases)

Indian Andesine Labradorite (hexagonal cut, 3 x 5mm) 1 stone (discount available for multiple purchases) Sale price¥2,980
[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 Sale priceFrom ¥22,800
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

Additional fee +5,000 yen Sale price¥5,000
Fukuoka SoftBank Hawks "Young Hawk Ring" - Single Type | SV925 Yellow Chalcedony -

Fukuoka SoftBank Hawks "Young Hawk Ring" - Single Type | SV925 Yellow Chalcedony - Sale priceFrom ¥18,060
[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 Sale priceFrom ¥22,800
[Sales start at 22:00 on Thursday, September 25th] TV anime "Magic Knight Rayearth" x KARATZ collaboration acrylic stand

[Sales start at 22:00 on Thursday, September 25th] TV anime "Magic Knight Rayearth" x KARATZ collaboration acrylic stand Sale price¥2,420
Euperlite 1 stone approx. 15ct-20ct (Michigan, USA) {Multiple purchase discount}

Euperlite 1 stone approx. 15ct-20ct (Michigan, USA) {Multiple purchase discount} Sale price¥2,580
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

Additional fee + 10,000 yen Sale price¥10,000
ピンクスピネル1

1 stone loose pink spinel (princess cut, approx. 2.5mm)《Discount available for multiple purchases》 Sale price¥2,980
Benitoite 1 stone (round cut, 2.0mm)《Multiple purchase discount available》

Benitoite 1 stone (round cut, 2.0mm)《Multiple purchase discount available》 Sale price¥12,800
Lab-grown ice blue diamond set of two (synthetic diamond, VS class equivalent, 1mm) {Multiple purchase discount available}

Lab-grown ice blue diamond set of two (synthetic diamond, VS class equivalent, 1mm) {Multiple purchase discount available} Sale price¥1,580
Set of 2 Tanzanite stones from Tanzania (2mm, round cut) {Multiple purchase discount available}

Set of 2 Tanzanite stones from Tanzania (2mm, round cut) {Multiple purchase discount available} Sale price¥1,580
【石から選ぶセミオーダーリング枠】ヴィヴァーチェ - カラッツSTORE

Vivace "Semi-custom ring setting" Sale price¥74,800
合成モアッサナイト1石ルース（ミントグリーン,オーバルカット,6×4mm)

Synthetic moissanite 1 stone loose (mint green, oval cut, 6 x 4 mm, moissanite)《Multiple purchase discount available》 Sale price¥3,980
1 dragon garnet stone (4.5mm, round cut)

1 dragon garnet stone (4.5mm, round cut) Sale price¥5,980
Dragon Garnet x 1 (3.5mm, round cut) {Multiple purchase discount available}

Dragon Garnet x 1 (3.5mm, round cut) {Multiple purchase discount available} Sale price¥3,980
Gem Gacha💎 Lepidolite in Quartz 1 stone《Multiple purchase discount available》

Gem Gacha💎 Lepidolite in Quartz 1 stone《Multiple purchase discount available》 Sale price¥3,980
Malachite 2 stone set loose (6mm, cushion cut)《Discount available for multiple purchases》

Malachite 2 stone set loose (6mm, cushion cut)《Discount available for multiple purchases》 Sale price¥1,000
Synthetic moissanite 1 stone loose (blue moissanite, 1.2mm)《Multiple purchase discount available》

Synthetic moissanite 1 stone loose (blue moissanite, 1.2mm)《Multiple purchase discount available》 Sale price¥1,000

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.