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Sold out 【12561989掲載】アメリカ産オレゴンサンストーン 0.793ctルース

Oregon Sunstone from the United States, 6.0mm/0.793ct loose stone
Sold out 【12561979掲載】ブラジル産デュモルチェライトインクォーツ 1.220ctルース

Brazilian Dumortierite in Quartz 1.220ct Loose Stone
Sold out 【12561975掲載】ブラジル産デュモルチェライトインクォーツ 1.559ctルース

Brazilian Dumortierite in Quartz 1.559ct Loose Stone
Sold out ブラジル産デュモルチェライトインクォーツ 0.673ctルース

Brazilian Dumortierite in Quartz 0.673ct Loose
Sold out Brazilian Dumortierite in Quartz 0.463ct Loose Stone (Faceted Cut)

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

Sold out ブラジル産デュモルチェライトインクォーツ 0.876ctルース

0.876ct loose dumortierite in quartz (faceted) from Brazil
Sold out ブラジル産デュモルチェライトインクォーツ 0.905ctルース

Brazilian Dumortierite in Quartz 0.905ct Loose Stone (Faceted Cut)
Sold out 【12561941掲載】ブラジル産メデューサクォーツ（パライバクォーツ） 1.202ctルース

Brazilian Medusa Quartz (Paraiba Quartz) 1.202ct Loose Stone

Sold out 【12561929掲載】合成ルチル 0.505ctルース

Synthetic rutile 0.505ct loose

Sold out 【12561916掲載】ペリドット 0.632ctルース

US Peridot 0.632ct Loose Stone

Sold out 【12561896掲載】ロンドンブルートパーズ 0.476ctルース

Brazilian London Blue Topaz 0.476ct Loose
Sold out タンザニア産ロードライトガーネット 0.704ctルース

0.704 ct loose Tanzanian rhodolite garnet
Sold out Tanzanian Color Change Garnet 0.509ct Loose Stone

Tanzanian Color Change Garnet 0.509ct Loose Stone
Sold out Synthetic Blue Sapphire 0.886ct Loose (Synthetic Sapphire)

Synthetic Blue Sapphire 0.886ct Loose (Synthetic Sapphire)
Sold out Synthetic rutile 3.9mm/0.329ct loose stone

Synthetic rutile 3.9mm/0.329ct loose stone
Sold out Brazilian Rainbow Scapolite 0.328ct Loose Stone

Brazilian Rainbow Scapolite 0.328ct Loose Stone

Sold out 【12561168掲載】メキシコ産ウォーターオパール（ファセットカット） 0.349ctルース

Mexican Water Opal (Faceted, Contralus Opal) 0.349ct Loose
Sold out 【12561129掲載】スリランカ産イエローサファイア 0.291ctルース

Sri Lankan Yellow Sapphire 0.291ct Loose
Sold out Brazilian London Blue Topaz 0.641ct Loose

Brazilian London Blue Topaz 0.641ct Loose
Sold out Myanmar Red Spinel 0.196ct Loose Stone

Myanmar Red Spinel 0.196ct Loose Stone
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 《Limited to 6 sets》 Colombian Reverse Trapiche Emerald & Brazilian Emerald (Sugarloaf Cut) 2-Stone Set《Multiple purchase discount available》

《Limited to 6 sets》 Colombian Reverse Trapiche Emerald & Brazilian Emerald (Sugarloaf Cut) 2-Stone Set《Multiple purchase discount 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 Limited to 13 stones! Bicolor Gacha 💎 Bicolor Sphene, usually priced at ¥79,800, Party-color Paraiba Tourmaline, usually priced at ¥39,800, and more. (Multiple Purchase Discount Available)

Limited to 13 stones! Bicolor Gacha 💎 Bicolor Sphene, usually priced at ¥79,800, Party-color Paraiba Tourmaline, usually priced at ¥39,800, and more. (Multiple Purchase Discount Available)
Sold out Color Change Gacha💎 Russian alexandrite, Brazilian alexandrite, and Tanzanian color-change garnets, usually priced at ¥39,800. 《Discounts for multiple purchases available》

Color Change Gacha💎 Russian alexandrite, Brazilian alexandrite, and Tanzanian color-change garnets, usually priced at ¥39,800. 《Discounts for multiple purchases available》
Sold out 奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 1.458ctルース

Rainbow Garnet (Andradite Garnet) 1.458ct Loose Stone from Tenkawa Village, Nara Prefecture
Sold out 【12561507掲載】ブラジル産ラベンダークォーツ（スコロライト） 0.716ctルース

Brazilian Lavender Quartz (Scolite) 0.716ct Loose Gemstone
Sold out 0.092ct loose stone with iolite and phlogopite (phlogopite)

0.092ct loose stone with iolite and phlogopite (phlogopite)

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

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

Sold out Diamond rough (makeable) 0.279ct rough

Diamond rough (makeable) 0.279ct rough
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 Tuesday, May 5] TV Anime "2.5 Dimensional Seduction" x Jewelry Store KARATZ Collaboration Tapestry

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

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 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 奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 0.639ctルース

Rainbow garnet (andradite garnet) 0.639ct loose from Tenkawa Village, Nara Prefecture
Sold out 0.072 ct loose Bekily blue garnet (color-change garnet) from Madagascar

0.072 ct loose Bekily blue garnet (color-change garnet) from Madagascar
Sold out 0.076ct Loose Madagascar Bekily Blue Garnet (Color Change Garnet)

0.076ct Loose Madagascar Bekily Blue Garnet (Color Change Garnet)
Sold out 【12547478掲載】ヴァイオレットスピネル 0.776ctルース

Myanmar Violet Spinel 0.776ct Loose

Sold out カンボジア産ブルージルコン（ラタナキリブルー） 0.615ctルース

Cambodian blue zircon (Ratanakiri blue) 0.615ct loose

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.