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Sold out オーストラリア産レインボーラティスサンストーン 1.013ctルース

Australian Rainbow Lattice Sunstone 1.013ct Loose
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)

Sold out Brazilian Dumortierite in Quartz 0.463ct Loose Stone (Faceted Cut)

Brazilian Dumortierite in Quartz 0.463ct Loose Stone (Faceted Cut)

Sold out 《Limited to 5 stones》Carving Gacha 💎 Green Quartz, Lemon Quartz, Blue Topaz 《Multiple Purchase Discount Available》

《Limited to 5 stones》Carving Gacha 💎 Green Quartz, Lemon Quartz, Blue Topaz 《Multiple Purchase Discount 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 Madagascar Pezzottaite Gacha (2.2-2.5mm, Round Cut) - Limited to 6 Stones (Multiple Purchase Discount Available)

Madagascar Pezzottaite Gacha (2.2-2.5mm, Round Cut) - Limited to 6 Stones (Multiple Purchase Discount Available)
Sold out Tanzanian Kornerupine (with Goethite) 2.6mm/0.068ct Loose

Tanzanian Kornerupine (with Goethite) 2.6mm/0.068ct Loose

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

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

Sold out [Sales End Tuesday, May 5] TV Anime "2.5 Dimensional Seduction" x KARATZ Gemstone Specialty Store Collaboration Acrylic Keychain

[Sales End Tuesday, May 5] TV Anime "2.5 Dimensional Seduction" x KARATZ Gemstone Specialty Store Collaboration Acrylic Keychain

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

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

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

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

Sold out Limited to 11 stones! Includes Koshu Precious Stone Kiriko plusthree "Irodori," normally priced at 74,800 yen. Sphene Gacha. Multiple purchase discounts available.

Limited to 11 stones! Includes Koshu Precious Stone Kiriko plusthree "Irodori," normally priced at 74,800 yen. Sphene Gacha. Multiple purchase discounts 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 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 Rare Stone Gacha 💎 Mozambique Paraiba Tourmaline, normally priced at ¥29,800, 1.8ct with a Shanshan appraisal certificate, Kornerupine, Epidote (Multiple purchase discount available)

Rare Stone Gacha 💎 Mozambique Paraiba Tourmaline, normally priced at ¥29,800, 1.8ct with a Shanshan appraisal certificate, Kornerupine, Epidote (Multiple purchase discount available)
Sold out 《Limited to 13 stones》Normally ¥49,800 Koshu Kiseki Kiriko plusthree "Subaru" lottery💎 Andesine Gacha《Multiple Purchase Discount Available》

《Limited to 13 stones》Normally ¥49,800 Koshu Kiseki Kiriko plusthree "Subaru" lottery💎 Andesine Gacha《Multiple Purchase Discount Available》
Sold out Brazilian Paraiba Tourmaline (CuO: 2.3% and CuO: 1.4%) & Kornerupine Rough Gacha 《Multiple Purchase Discount Available》

Brazilian Paraiba Tourmaline (CuO: 2.3% and CuO: 1.4%) & Kornerupine Rough Gacha 《Multiple Purchase Discount Available》
Sold out オレゴンサンストーン 0.513ctルース

Oregon Sunstone 0.513ct loose
Sold out ザンビア産アメジスト 29.357ct原石

Amethyst 29.357ct raw stone from Zambia
Sold out フィンランド産ラブラドライト（スペクトロライト） 6.335ctルース

Labradorite (Spectrolite) from Finland 6.335ct loose
coming soon ガーデンクォーツ 23.495ctルース

Garden quartz 23.495ct loose Sale price¥3,980
Sold out Native Copper (1 rough stone) (average 22 carats) {Multiple purchase discounts available}

Native Copper (1 rough stone) (average 22 carats) {Multiple purchase discounts available}
Sold out Fun Gem Gacha! 💎 Get diamonds (normally 29,800 yen) (D/VS/3EX H&C with Medium Certificate), special cut Oresund and Unloved, and more! (Multiple purchase discounts available)

Fun Gem Gacha! 💎 Get diamonds (normally 29,800 yen) (D/VS/3EX H&C with Medium Certificate), special cut Oresund and Unloved, and more! (Multiple purchase discounts available)

coming soon Myanmar orange jade (jade) 0.531ct loose

Myanmar orange jade (jade) 0.531ct loose Sale price¥4,980
Sold out デュモルチェライトインクォーツ 3.814ct原石

Brazilian dumortierite in quartz 3.814ct raw stone

Sold out マダガスカル産アンデシン・ラブラドライト（通称名 レインボームーンストーン） 0.666ctルース

Andesine Labradorite from Madagascar (commonly known as Rainbow Moonstone) 0.666ct loose
Sold out マダガスカル産アンデシン・ラブラドライト（通称名 レインボームーンストーン） 0.570ctルース

Andesine Labradorite (commonly known as Rainbow Moonstone) from Madagascar 0.570ct loose
Sold out ナイジェリア産モルガナイト 0.889ctルース

Morganite from Nigeria 0.889ct loose
Sold out 《Limited to 15 Stones》Koshu Kiseki Kiriko 《Moon-Cut Kiriko》Blue Topaz Gacha - 1 Loose Stone including 10ct Blue Topaz 《Multiple Purchase Discount Available》

《Limited to 15 Stones》Koshu Kiseki Kiriko 《Moon-Cut Kiriko》Blue Topaz Gacha - 1 Loose Stone including 10ct Blue Topaz 《Multiple Purchase Discount Available》

Sold out 《Limited 7 Stones》Sri Lankan Green Zircon (Special Cut, including Silky Type)《Multi-purchase Discount Available》

《Limited 7 Stones》Sri Lankan Green Zircon (Special Cut, including Silky Type)《Multi-purchase Discount Available》
Sold out Limited to 11 stones: Bicolor Gacha (including Zimbabwean bicolor euclase, bicolor sapphire, and bicolor zoisite) (Multiple purchase discounts available)

Limited to 11 stones: Bicolor Gacha (including Zimbabwean bicolor euclase, bicolor sapphire, and bicolor zoisite) (Multiple purchase discounts available)
Sold out 《Limited to 13 stones》Beryl Gacha (including Aquamarine Vortex Cut Koshu Kiseki Kiriko) 1 Loose Stone《Multi-purchase discount available》

《Limited to 13 stones》Beryl Gacha (including Aquamarine Vortex Cut Koshu Kiseki Kiriko) 1 Loose Stone《Multi-purchase discount available》
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 Limited Edition of 11 Montana Sapphires (Rock Creek Mine) Gacha! 1 Loose Stone (Oval Cut, 5x3mm) - Multiple Purchase Discounts Available

Limited Edition of 11 Montana Sapphires (Rock Creek Mine) Gacha! 1 Loose Stone (Oval Cut, 5x3mm) - Multiple Purchase Discounts Available
Sold out Limited Edition of 7 Montana Sapphires (Rock Creek Mine) Gacha (Pear Shape, Approx. 5 x 3mm) [Multiple Purchase Discounts Available]

Limited Edition of 7 Montana Sapphires (Rock Creek Mine) Gacha (Pear Shape, Approx. 5 x 3mm) [Multiple Purchase Discounts Available]
Sold out Limited to 10 stones! Rare Stone Gacha! 💎 Shinsha, Zimbabwean Euclase, Red Beryl, Star Peridot, and more. Multi-buy discounts available.

Limited to 10 stones! Rare Stone Gacha! 💎 Shinsha, Zimbabwean Euclase, Red Beryl, Star Peridot, and more. Multi-buy discounts available.
Sold out Red Gemstone Gacha including Pigeon Blood Ruby AIGS worth ¥60,000 💎 Ruby and Hot Pink Sapphire (Multiple Purchase Discounts Available)

Red Gemstone Gacha including Pigeon Blood Ruby AIGS worth ¥60,000 💎 Ruby and Hot Pink Sapphire (Multiple Purchase Discounts Available)
Sold out Limited to 6 stones: 1 loose Brazilian pyrite in quartz (average 3.2 carats) Multiple purchase discounts available

Limited to 6 stones: 1 loose Brazilian pyrite in quartz (average 3.2 carats) Multiple purchase discounts available
Sold out マダガスカル産バイカラーサファイア 0.259ctルース

Bicolor sapphire from Madagascar 0.259ct loose
Sold out Citrine 0.833ct loose stone

Citrine 0.833ct loose stone
Sold out アメジスト 8.044ctルース

Amethyst 8.044ct loose
Sold out ダンビュライト 1.427ctルース

Danburite 1.427ct loose stone
Sold out アクアマリンキャッツアイ 3.528ctルース

Aquamarine cat's eye 3.528ct loose
Sold out Limited to 10 stones! Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More! Bicolor Loose Stones! 💎 Single Loose Stones Available. Discounts Available for Multiple Purchases.

Limited to 10 stones! Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More! Bicolor Loose Stones! 💎 Single Loose Stones Available. Discounts Available for Multiple Purchases.
Sold out Chrome tourmaline 0.300ct loose stone

Chrome tourmaline 0.300ct loose stone

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.