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Sold out Synthetic Blue Sapphire 0.886ct Loose (Synthetic Sapphire)

Synthetic Blue Sapphire 0.886ct Loose (Synthetic Sapphire)
Sold out Brazilian Rainbow Scapolite 0.435ct Loose Stone

Brazilian Rainbow Scapolite 0.435ct Loose Stone
Sold out Brazilian Rainbow Scapolite 0.328ct Loose Stone

Brazilian Rainbow Scapolite 0.328ct Loose Stone

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 ピンクサファリン 0.178ctルース

0.178ct Madagascar Pink Sapphire Loose Stone, Japan-German

Sold out 【12561305掲載】アメリカ産オレゴンサンストーン 0.472ctルース

USA origin Oregon Sunstone 0.472ct Loose
Sold out Sri Lankan green zircon 0.494ct loose stone

Sri Lankan green zircon 0.494ct loose stone
Sold out Myanmar Red Spinel 0.196ct Loose Stone

Myanmar Red Spinel 0.196ct Loose Stone
Sold out [Sakura In-Cut] Oregon Sunstone from the United States, 6.0mm/0.638ct Loose

[Sakura In-Cut] Oregon Sunstone from the United States, 6.0mm/0.638ct Loose
Sold out Tanzanian Spessartine Garnet 1.168ct Loose Stone

Tanzanian Spessartine Garnet 1.168ct Loose Stone

Sold out Tanzanian zircon, 1.672ct loose

Tanzanian zircon, 1.672ct loose
Sold out Myanmar color change zircon 0.439ct loose stone

Myanmar color change zircon 0.439ct loose stone
Sold out カラーチェンジジルコン 0.556ctルース

Burmese color-change zircon 0.556 ct loose

Sold out Pink sapphire (with hematite) 0.271ct loose stone

Pink sapphire (with hematite) 0.271ct loose stone

Sold out [Sakura InCut] Synthetic Sapphire 2.610ct Loose Stone (Synthetic Pink Sapphire)

[Sakura InCut] Synthetic Sapphire 2.610ct Loose Stone (Synthetic Pink Sapphire)

Sold out [Yukinko Cut] Synthetic Sapphire 2.102ct Loose Stone

[Yukinko Cut] Synthetic Sapphire 2.102ct Loose Stone

Sold out Silky sapphire from Vietnam, 1.169ct loose stone

Silky sapphire from Vietnam, 1.169ct loose stone

Sold out 0.745ct loose bicolor sapphire from Windsor, Tanzania

0.745ct loose bicolor sapphire from Windsor, Tanzania

Sold out Sri Lankan Cobalt Spinel (Blue Spinel) 3.202ct Loose Stone (Needle-like Inclusions) Japan-German Rare Stone

Sri Lankan Cobalt Spinel (Blue Spinel) 3.202ct Loose Stone (Needle-like Inclusions) Japan-German Rare Stone

Sold out Oregon Sunstone from the United States, 8.338ct loose stone

Oregon Sunstone from the United States, 8.338ct loose stone
Sold out [Sakura Shape] Oregon Sunstone from the United States, 1.224ct Loose

[Sakura Shape] Oregon Sunstone from the United States, 1.224ct Loose
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

Sold out Pt950 Bicolor Sapphire Pendant Top (Necklace Top)

Pt950 Bicolor Sapphire Pendant Top (Necklace Top)

Sold out Cornflower Blue Sapphire 0.370ct Loose AIGS

Cornflower Blue Sapphire 0.370ct Loose AIGS
Sold out USA Oregon Sunstone 5.0mm/0.443ct Loose

USA Oregon Sunstone 5.0mm/0.443ct Loose
Sold out Tanzanian Sunstone 1.477ct Loose Stone

Tanzanian Sunstone 1.477ct Loose Stone
Sold out Madagascar Sphene 4.5mm/0.509ct Loose Gemstone

Madagascar Sphene 4.5mm/0.509ct Loose Gemstone
Sold out パパラチアサファイア 0.191ctルース

Padparadscha sapphire 0.191ct loose stone

Sold out オレゴンサンストーン 0.513ctルース

Oregon Sunstone 0.513ct loose
Sold out 1.676ct loose Oregon sunstone from the United States

1.676ct loose Oregon sunstone from the United States
Sold out USA Oregon Sunstone 1.869ct Loose

USA Oregon Sunstone 1.869ct Loose
Sold out 0.628ct Pink Star Sapphire Loose Gemstone from Sri Lanka

0.628ct Pink Star Sapphire Loose Gemstone from Sri Lanka
Sold out ベトナム産非加熱シルキーピンクサファイア 0.202ctルース

Unheated silky pink sapphire from Vietnam 0.202ct loose

coming soon タンザニア産バイカラーゾイサイト 0.357ctルース

Tanzania Bicolor Zoisite 0.357ct Loose Stone Sale price¥6,980
coming soon タンザニア産バイカラーゾイサイト 0.305ctルース

Tanzania Bicolor Zoisite 4mm/0.305ct Loose Stone Sale price¥6,980
coming soon Tanzania Bicolor Zoisite 0.278ct Loose Stone

Tanzania Bicolor Zoisite 0.278ct Loose Stone Sale price¥4,980
coming soon アメリカ産オレゴンサンストーン 0.743ctルース

Oregon Sunstone from the United States 1.132ct loose stone Sale price¥12,800
coming soon アメリカ産オレゴンサンストーン 0.292ctルース

Oregon Sunstone from the United States 0.292ct loose stone Sale price¥6,980
coming soon 【9/4 22時販売】《限定13石》通常59,800円の14mmダンデライオンカットアメトリン・29,800円の甲州貴石切子シトリンの熟練職人ガチャ《複数購入割引有》

【9/4 22時販売】《限定13石》通常59,800円の14mmダンデライオンカットアメトリン・29,800円の甲州貴石切子シトリンの熟練職人ガチャ《複数購入割引有》 Sale price¥4,980

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.