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

Cobalt Garnite 1 stone (discount available for multiple purchases)

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 Blue moonstone (pyramid cut, 5 x 5 mm, 4 x 4 mm) 2 stone set《Discount available for multiple purchases》

Blue moonstone (pyramid cut, 5 x 5 mm, 4 x 4 mm) 2 stone set《Discount available for multiple purchases》

Sold out American Anthill Garnet (Chrome Pyrope Garnet) 1 Stone Loose (Princess Cut, 2.5mm) {Multiple Purchase Discounts Available}

American Anthill Garnet (Chrome Pyrope Garnet) 1 Stone Loose (Princess Cut, 2.5mm) {Multiple Purchase Discounts Available}
Sold out [On sale Friday, March 13th at 10pm] Anime "Hell Teacher Nube" x KARATZ collaboration: Original random acrylic keychains

[On sale Friday, March 13th at 10pm] Anime "Hell Teacher Nube" x KARATZ collaboration: Original random acrylic keychains

Sold out [Sales end on Thursday, April 30th] Anime "Overlord" x KARATZ Jewelry Store Collaboration Ring of Ainz Ooal Gown (Limited Quantity)

[Sales end on Thursday, April 30th] Anime "Overlord" x KARATZ Jewelry Store Collaboration Ring of Ainz Ooal Gown (Limited Quantity)

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 【猫カット】アメジスト（8mm） - カラッツSTORE

[Cat cut] Amethyst (8mm)

Sold out 1 Dragon Garnet (4.0mm, round cut)

1 Dragon Garnet (4.0mm, round cut)

Sold out Let's try the gem mining experience "Do-it-yourself gem excavation experience set" + bonus of fossil stickers and simple black light (more than 8 types of gems) (discounts available for multiple purchases)

Let's try the gem mining experience "Do-it-yourself gem excavation experience set" + bonus of fossil stickers and simple black light (more than 8 types of gems) (discounts available for multiple purchases)

Sold out 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}
Sold out [Final Orders Accepted - On Sale November 21st (Fri) at 10 PM] Limited to 30 Coins: "PSYCHO-PASS: PROVIDENCE" x KARATZ Collaboration Pure Gold (24K) Coin

[Final Orders Accepted - On Sale November 21st (Fri) at 10 PM] Limited to 30 Coins: "PSYCHO-PASS: PROVIDENCE" x KARATZ Collaboration Pure Gold (24K) Coin

Sold out [Sales End on Monday, January 12th] TV Anime "Tokyo Ghoul" x KARATZ Collaboration Part 2: Newly Illustration Merchandise: Triple Acrylic Keychains (2 Types)

[Sales End on Monday, January 12th] TV Anime "Tokyo Ghoul" x KARATZ Collaboration Part 2: Newly Illustration Merchandise: Triple Acrylic Keychains (2 Types)

Sold out 1 stone loose quartz in oil from Pakistan《Discount available for multiple purchases》

1 stone loose quartz in oil from Pakistan《Discount available for multiple purchases》
Sold out Limited to 20 stones! Includes 6 red gemstones of pigeon blood ruby ​​with AGL certificate. Discounts available for multiple purchases.

Limited to 20 stones! Includes 6 red gemstones of pigeon blood ruby ​​with AGL certificate. Discounts available for multiple purchases.
Sold out 1 green opal from Amazon《Discount available for multiple purchases》

1 green opal from Amazon《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 Limited time sale: Tibetan Andesine 1 stone (3mm, round cut) Multiple purchase discounts available

Limited time sale: Tibetan Andesine 1 stone (3mm, round cut) Multiple purchase discounts available
Sold out Limited to 22 Sapphire Gacha (Includes Sakura In-Cut & Sakura Shape Sapphire, Bonus Hot Pink Sapphire) (Multiple Purchase Discounts Available)

Limited to 22 Sapphire Gacha (Includes Sakura In-Cut & Sakura Shape Sapphire, Bonus Hot Pink Sapphire) (Multiple Purchase Discounts Available)

Sold out [Sales start on Friday, August 8th at 22:00] TV anime "Date A Live V" x KARATZ collaboration foil-stamped glitter can badges

[Sales start on Friday, August 8th at 22:00] TV anime "Date A Live V" x KARATZ collaboration foil-stamped glitter can badges

Sold out [Sales End on Sunday, February 15th] TV Anime "Tokyo Ghoul" x KARATZ Collaboration CCG Quinque Pendant

[Sales End on Sunday, February 15th] TV Anime "Tokyo Ghoul" x KARATZ Collaboration CCG Quinque Pendant

Sold out Limited to 20 stones: 1 loose sphalerite stone from Spain. Discounts available for multiple purchases.

Limited to 20 stones: 1 loose sphalerite stone from Spain. Discounts available for multiple purchases.

Sold out [Sales end on 4/30 (Thu)] Anime "Overlord" x KARATZ Jewelry Store Collaboration Random Acrylic Card (7 types)

[Sales end on 4/30 (Thu)] Anime "Overlord" x KARATZ Jewelry Store Collaboration Random Acrylic Card (7 types)

Sold out Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for advanced users: rough spinel from Mozambique)

Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for advanced users: rough spinel from Mozambique)

Sold out [Jeweler's Tools] 3-piece set: Jewelry Loupe (14x magnification), Blue Diamond, and Pink Tourmaline or Sapphire

[Jeweler's Tools] 3-piece set: Jewelry Loupe (14x magnification), Blue Diamond, and Pink Tourmaline or Sapphire
Sold out [Sales End May 10th (Sunday)] Anime "Assassination Classroom" x KARATZ Collaboration Nagisa Shiota Model Ring

[Sales End May 10th (Sunday)] Anime "Assassination Classroom" x KARATZ Collaboration Nagisa Shiota Model Ring

Sold out Custom-made lucky bag for beginners💎 Includes two gemstones (one with a diamond), a CZ set, and a ring image holder (multiple purchase discounts available)

Custom-made lucky bag for beginners💎 Includes two gemstones (one with a diamond), a CZ set, and a ring image holder (multiple purchase discounts available)
Sold out [Sales end on Thursday, April 30] Anime "Overlord" x KARATZ Jewelry Store Collaboration Multi-Acrylic Stands (All 3 Types)

[Sales end on Thursday, April 30] Anime "Overlord" x KARATZ Jewelry Store Collaboration Multi-Acrylic Stands (All 3 Types)

Sold out Kochi Prefecture Blood Red Coral Loose (6-8mm / damaged by water pressure during retrieval) "Multiple purchase discount available"

Kochi Prefecture Blood Red Coral Loose (6-8mm / damaged by water pressure during retrieval) "Multiple purchase discount available"

Sold out Synthetic alexandrite 1 stone (round, mele size)《Discount available for multiple purchases》

Synthetic alexandrite 1 stone (round, mele size)《Discount available for multiple purchases》

Sold out Brazilian rutilated quartz (rutile/rutilated quartz (rutilated quartz)) 1 loose stone (3.0-3.5mm, for beginners) {Multiple purchase discounts available}

Brazilian rutilated quartz (rutile/rutilated quartz (rutilated quartz)) 1 loose stone (3.0-3.5mm, for beginners) {Multiple purchase discounts available}
Sold out Limited to 21 stones: 1 loose stone of Spanish sphalerite (faceted cut, average 0.60ct) Multiple purchase discounts available

Limited to 21 stones: 1 loose stone of Spanish sphalerite (faceted cut, average 0.60ct) Multiple purchase discounts available
Sold out Limited to 100 coins: "PSYCHO-PASS: PROVIDENCE" x KARATZ collaboration pure silver (SV999) coin

Limited to 100 coins: "PSYCHO-PASS: PROVIDENCE" x KARATZ collaboration pure silver (SV999) coin

Sold out [Sales end on Thursday, April 30th] Anime "Overlord" x KARATZ Jewelry Store Collaboration - All 3 Types of Microfiber Cloths

[Sales end on Thursday, April 30th] Anime "Overlord" x KARATZ Jewelry Store Collaboration - All 3 Types of Microfiber Cloths

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 Christmas Sale: S: 3 pieces / M: 1 piece / Kids: 1 piece - Yuichiro Abe Goods Set [T-shirt & Coaster]

Christmas Sale: S: 3 pieces / M: 1 piece / Kids: 1 piece - Yuichiro Abe Goods Set [T-shirt & Coaster]

Sold out Limited to 19 stones: Blue sapphire from Madagascar (medium blue, oval cut) Discounts available for multiple purchases

Limited to 19 stones: Blue sapphire from Madagascar (medium blue, oval cut) Discounts available for multiple purchases
Sold out [On sale Friday, March 13th at 10pm] Anime "Hell Teacher Nube" x KARATZ Collaboration Jewelry Demon Hand Pendant

[On sale Friday, March 13th at 10pm] Anime "Hell Teacher Nube" x KARATZ Collaboration Jewelry Demon Hand Pendant

Sold out 1 Ethiopian Opal (Baroque)《Discount available for multiple purchases》

1 Ethiopian Opal (Baroque)《Discount available for multiple purchases》

Sold out プリンセスカットダイヤモンド 2.0mm ルース（VSクラス相当）

Princess cut diamond 2.0mm loose (equivalent to VS class)《Multiple purchase discount available》

Sold out ライモナイトインクォーツ（オーロラクォーツ） 1石 ルース

Lymonite in Quartz (Aurora Quartz) 1 stone loose

Sold out Brazilian Paraiba Tourmaline (1.0mm, top quality)《Multiple purchase discount available》

Brazilian Paraiba Tourmaline (1.0mm, top quality)《Multiple purchase discount available》

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 [Sakura Shape Jewelry] Hanayurara (Vatican Necklace)

[Sakura Shape Jewelry] Hanayurara (Vatican Necklace)

Sold out TV anime "The Story of Going to a Mixer and Not Having a Girlfriend" x KARATZ collaboration pair image rings Suou x Tokiwa image

TV anime "The Story of Going to a Mixer and Not Having a Girlfriend" x KARATZ collaboration pair image rings Suou x Tokiwa image

Sold out 18K Yellow Gold Curb Chain Necklace, 1.0mm/1.6g, 40cm

18K Yellow Gold Curb Chain Necklace, 1.0mm/1.6g, 40cm
Sold out SoftBank Hawks 20th Anniversary "Pure Gold Oban" (10g)

SoftBank Hawks 20th Anniversary "Pure Gold Oban" (10g)

Sold out Limited Quantity: Russian Phenakite (Round Cut, 3mm) Loose Stone (Multiple Purchase Discounts Available)

Limited Quantity: Russian Phenakite (Round Cut, 3mm) Loose Stone (Multiple Purchase Discounts Available)

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.