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Sold out Win two unheated royal blue sapphires (with AIGS certificate) in the Blue Sapphire Lottery (Multiple purchase discounts available)

Win two unheated royal blue sapphires (with AIGS certificate) in the Blue Sapphire Lottery (Multiple purchase discounts available)
Sold out Gem Gacha💎 Trapiche Diamond (Sliced ​​Diamond) 1 stone {Multiple purchase discount available}

Gem Gacha💎 Trapiche Diamond (Sliced ​​Diamond) 1 stone {Multiple purchase discount available}

Sold out [Limited to 24 stones] Tourmaline Gacha💎Indigolite tourmaline, clover cut, and other single loose stones {Multiple purchase discounts available}

[Limited to 24 stones] Tourmaline Gacha💎Indigolite tourmaline, clover cut, and other single loose stones {Multiple purchase discounts available}
Sold out [Sold out] "TSUKIUTA." Movie version RABBITS KINGDOM THE MOVIE x KARATZ collaboration bunny ear earrings "Black Rabbit Kingdom"

[Sold out] "TSUKIUTA." Movie version RABBITS KINGDOM THE MOVIE x KARATZ collaboration bunny ear earrings "Black Rabbit Kingdom"

Sold out Limited to 25 stones: Brazilian Paraiba Tourmaline (including bicolor, Batalha) rough stones, average size 0.1ct. Discounts for multiple purchases available.

Limited to 25 stones: Brazilian Paraiba Tourmaline (including bicolor, Batalha) rough stones, average size 0.1ct. Discounts for multiple purchases available.
Sold out Limited to 15 sets: Two Nigerian tourmaline gemstones (October birthstone) Discounts available for multiple purchases

Limited to 15 sets: Two Nigerian tourmaline gemstones (October birthstone) Discounts available for multiple purchases
Sold out [Sales end on Friday, April 18th] TV anime "I Want Someone Else in the Next Life" x KARATZ collaboration oil-in-acrylic coaster

[Sales end on Friday, April 18th] TV anime "I Want Someone Else in the Next Life" x KARATZ collaboration oil-in-acrylic coaster

Sold out [While supplies last, same-day shipping] TV anime "I went to a mixer and there were no girls" x KARATZ collaboration trading character and scene clear postcards

[While supplies last, same-day shipping] TV anime "I went to a mixer and there were no girls" x KARATZ collaboration trading character and scene clear postcards

Sold out 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
Sold out Fukuoka SoftBank Hawks "Young Hawk Ring" - Double Type | SV925, Yellow Chalcedony, White Chalcedony -

Fukuoka SoftBank Hawks "Young Hawk Ring" - Double Type | SV925, Yellow Chalcedony, White Chalcedony -

Sold out Limited to 20 stones! Includes 2 Koshu Kiriko fire opals and 1 loose fire opal. Discounts available for multiple purchases.

Limited to 20 stones! Includes 2 Koshu Kiriko fire opals and 1 loose fire opal. Discounts available for multiple purchases.
Sold out Limited to 14 stones: 1 loose sphalerite stone from Spain (average 0.55 carats) Multiple purchase discounts available

Limited to 14 stones: 1 loose sphalerite stone from Spain (average 0.55 carats) Multiple purchase discounts available
Sold out Limited to 13 stones! Tourmaline gacha featuring indigolite tourmaline worth ¥50,000 and rubellite worth ¥60,000. Plus, one canary yellow tourmaline. Discounts available for multiple purchases.

Limited to 13 stones! Tourmaline gacha featuring indigolite tourmaline worth ¥50,000 and rubellite worth ¥60,000. Plus, one canary yellow tourmaline. Discounts available for multiple purchases.

Sold out Russian alexandrite normally 69,800 JPY, rare twin chrysoberyl cat's eye normally 65,800 JPY, Alex Gacha (multiple purchase discount available)

Russian alexandrite normally 69,800 JPY, rare twin chrysoberyl cat's eye normally 65,800 JPY, Alex Gacha (multiple purchase discount available)
Sold out Emerald Gacha (including Emerald Cat's Eye and special cuts) featuring Russian non-oil emeralds, etc. 💎 (Multiple purchase discount available)

Emerald Gacha (including Emerald Cat's Eye and special cuts) featuring Russian non-oil emeralds, etc. 💎 (Multiple purchase discount available)
Sold out Limited to 18 items: Deep-sea Coral Branch (raw wood), 1 stone (March birthstone, coral, average 18ct) (bulk purchase discount available)

Limited to 18 items: Deep-sea Coral Branch (raw wood), 1 stone (March birthstone, coral, average 18ct) (bulk purchase discount available)

Sold out Rose quartz 1 stone (heart, approx. 23ct)《Discount available for multiple purchases》

Rose quartz 1 stone (heart, approx. 23ct)《Discount available for multiple purchases》

Sold out 【猫カット】ムーンストーン（6mm） - カラッツSTORE

[Cat cut] Moonstone (6mm)《Multiple purchase discount available》

Sold out Madeira Citrine 1 stone 💎5mm-6mm (Madeira Citrine)《November birthstone》《Multiple purchase discount available》

Madeira Citrine 1 stone 💎5mm-6mm (Madeira Citrine)《November birthstone》《Multiple purchase discount available》

Sold out スコロライト1石ルース（8mm,コンケーブカット）《複数購入割引有》

Scorolite 1 stone loose (8mm, concave cut)《Multiple purchase discount available》
Sold out グリーンランド産アイスルビー 1石（ハートシェイプ,4mm,ピンクサファイア）《複数購入割引有》

Greenland Ice Ruby 1 stone (heart shape, 4mm, pink sapphire) {Multiple purchase discount available}

Sold out 《Limited to 16 stones》1 tanzanite stone (octagonal cut, 3.0mm)《Multiple purchase discount available》

《Limited to 16 stones》1 tanzanite stone (octagonal cut, 3.0mm)《Multiple purchase discount available》
Sold out [Sold out] "TSUKIUTA." Movie version RABBITS KINGDOM THE MOVIE x KARATZ collaboration bunny ear earrings "White Rabbit Kingdom"

[Sold out] "TSUKIUTA." Movie version RABBITS KINGDOM THE MOVIE x KARATZ collaboration bunny ear earrings "White Rabbit Kingdom"

Sold out Limited to 20 stones, Brazilian dendritic quartz, 1 loose stone, multiple purchase discounts available

Limited to 20 stones, Brazilian dendritic quartz, 1 loose stone, multiple purchase discounts available
Sold out [Sales End on Friday, April 18th] TV Anime "I'd Rather Be Someone Else in the Next Life" x KARATZ Collaboration Somei Yoshino Model

[Sales End on Friday, April 18th] TV Anime "I'd Rather Be Someone Else in the Next Life" x KARATZ Collaboration Somei Yoshino Model

Sold out [Sakura Shape Jewelry] Hanakoromo (Ring/Pt950, K18)

[Sakura Shape Jewelry] Hanakoromo (Ring/Pt950, K18)

Sold out TV anime "I went to a blind date and there were no girls" x KARATZ collaboration pair image rings Wisteria x Light Blue image

TV anime "I went to a blind date and there were no girls" x KARATZ collaboration pair image rings Wisteria x Light Blue image

Sold out TV anime "I Went to a Mixer and There Were No Girls" x KARATZ collaboration pair image rings, amber x bush clover image

TV anime "I Went to a Mixer and There Were No Girls" x KARATZ collaboration pair image rings, amber x bush clover image

Sold out Limited to 12 stones: Madagascar Sapphirine (Sapphirine) Loose Stone (Multiple purchase discounts available)

Limited to 12 stones: Madagascar Sapphirine (Sapphirine) Loose Stone (Multiple purchase discounts available)
Sold out Limited to 20 stones: Russian Demantoid Garnet (Horsetail inclusions, approximately 2mm) - 1 loose stone. Discounts available for multiple purchases.

Limited to 20 stones: Russian Demantoid Garnet (Horsetail inclusions, approximately 2mm) - 1 loose stone. Discounts available for multiple purchases.

Sold out Ruby Lottery: Win a 0.59ct Pigeon Blood Ruby with AIGS or a Burmese Star Ruby (Multiple Purchase Discounts Available)

Ruby Lottery: Win a 0.59ct Pigeon Blood Ruby with AIGS or a Burmese Star Ruby (Multiple Purchase Discounts Available)
Sold out [Sales End on Monday, January 12th] TV Anime "Tokyo Ghoul" x KARATZ Collaboration Part 2: Newly Illustration Clear Postcard Set

[Sales End on Monday, January 12th] TV Anime "Tokyo Ghoul" x KARATZ Collaboration Part 2: Newly Illustration Clear Postcard Set

Sold out [Sales end on Tuesday, May 5th] TV Anime "2.5 Dimensional Seduction" x KARATZ Jewelry Store Collaboration Postcard Set

[Sales end on Tuesday, May 5th] TV Anime "2.5 Dimensional Seduction" x KARATZ Jewelry Store Collaboration Postcard Set

Sold out 《Limited to 13 stones》Synthetic Gacha (with additional synthetic alexandrite) including D/IF/3EX lab-grown diamonds normally priced at 39,800 yen and Sakura-cut YAGs normally priced at 59,800 yen. 《Multiple purchase discount available》

《Limited to 13 stones》Synthetic Gacha (with additional synthetic alexandrite) including D/IF/3EX lab-grown diamonds normally priced at 39,800 yen and Sakura-cut YAGs normally priced at 59,800 yen. 《Multiple purchase discount available》
Sold out Ametrine 1 stone (approximately 40~50ct)

Ametrine 1 stone (approximately 40~50ct)

Sold out Purple Chalcedony 1 stone《Discount available for multiple purchases》

Purple Chalcedony 1 stone《Discount available for multiple purchases》

Sold out 1 loose sapphire from Ratnapura, Sri Lanka (3.0mm-4.0mm, trilliant cut)《Multiple purchase discount available》

1 loose sapphire from Ratnapura, Sri Lanka (3.0mm-4.0mm, trilliant cut)《Multiple purchase discount available》

Sold out [Sold out] "Tokyo Color Sonic!!" x KARATZ collaboration Karasonic Buddy Ring

[Sold out] "Tokyo Color Sonic!!" x KARATZ collaboration Karasonic Buddy Ring

Sold out [Reception ends on 11/30]《Shipped from mid-January to late January》 “Bakuten!!” x KARATZ collaboration goods / Onaga T-shirt (black/white)

[Reception ends on 11/30]《Shipped from mid-January to late January》 “Bakuten!!” x KARATZ collaboration goods / Onaga T-shirt (black/white)

Sold out Limited to 15 stones Apatite Gacha💎 Zimbabwean apatite, purple apatite, etc. 1 loose stone (with defects) Multiple purchase discounts available

Limited to 15 stones Apatite Gacha💎 Zimbabwean apatite, purple apatite, etc. 1 loose stone (with defects) Multiple purchase discounts available
Sold out Limited to 17 stones: Tanzanian bicolor sapphire, loose stone (multiple purchase discounts available)

Limited to 17 stones: Tanzanian bicolor sapphire, loose stone (multiple purchase discounts available)
Sold out [On sale Friday, March 13th at 10pm] New anime "Hell Teacher Nube" x KARATZ collaboration jewelry: Nueno Meisuke model ring

[On sale Friday, March 13th at 10pm] New anime "Hell Teacher Nube" x KARATZ collaboration jewelry: Nueno Meisuke model ring

Sold out Single loose Russian oil-free emerald (2.1mm, square cut) {Multiple purchase discounts available}

Single loose Russian oil-free emerald (2.1mm, square cut) {Multiple purchase discounts available}
Sold out 《Limited to 15 Stones》Rare Stone Gacha 💎 Featuring non-oiled red beryl with GIA certificate for 98,000 yen, cinnabar, Mozambique Paraiba tourmaline, benitoite, and more. 《Multiple purchase discount available》

《Limited to 15 Stones》Rare Stone Gacha 💎 Featuring non-oiled red beryl with GIA certificate for 98,000 yen, cinnabar, Mozambique Paraiba tourmaline, benitoite, and more. 《Multiple purchase discount available》
Sold out Limited Edition of 16 Blue Stones (Bicolor Benitoite, Brazilian Paraiba Tourmaline, Santa Maria Aquamarine, etc.)

Limited Edition of 16 Blue Stones (Bicolor Benitoite, Brazilian Paraiba Tourmaline, Santa Maria Aquamarine, etc.)
Sold out Shimizu Precious Stones: Includes 7mm Dandelion Cut Morganite 💎 Morganite Gacha (Multiple Purchase Discounts Available)

Shimizu Precious Stones: Includes 7mm Dandelion Cut Morganite 💎 Morganite Gacha (Multiple Purchase Discounts Available)
Sold out Limited to 14 stones: Rainbow Garnet from Tenkawa Village, Nara Prefecture (faceted by Saint-Jay) [Multiple purchase discounts available]

Limited to 14 stones: Rainbow Garnet from Tenkawa Village, Nara Prefecture (faceted by Saint-Jay) [Multiple purchase discounts available]
Sold out Imperial Topaz Gacha: Win a Pink Imperial Topaz, normally priced at 69,800 yen (Multiple purchase discounts available)

Imperial Topaz Gacha: Win a Pink Imperial Topaz, normally priced at 69,800 yen (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.