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sapphire

Sapphire is the birthstone of September. Isn't this a gemstone that can be said to be the representative blue gemstone? However, there are actually many colors, including ``bicolor sapphire'' that exhibits two colors in one stone, ``color change sapphire'' that has a color change effect, and ``star sapphire'' that shows six lines when exposed to light. There are many types such as ``. It belongs to the same mineral corundum as ruby, and has high Mohs hardness and toughness, making it a gemstone that can be enjoyed as everyday jewelry.

Karatz GemMagazine
" sapphire "

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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 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 Only one left! Blue Sapphire Gacha Set Includes Two Unheated Royal Blue Sapphires (with AIGS Certificate) (Plus One Sapphire from the Teppanawa Mine) (Multiple Purchase Discounts Available)

Only one left! Blue Sapphire Gacha Set Includes Two Unheated Royal Blue Sapphires (with AIGS Certificate) (Plus One Sapphire from the Teppanawa Mine) (Multiple Purchase Discounts Available)
Sold out Limited to 15 stones: Blue Stone Gacha (Top-Color Benitoite 2.0mm, Paraiba Tourmaline in Quartz, Unheated Yogo Sapphire) (Multiple purchase discounts available)

Limited to 15 stones: Blue Stone Gacha (Top-Color Benitoite 2.0mm, Paraiba Tourmaline in Quartz, Unheated Yogo Sapphire) (Multiple purchase discounts available)
Sold out Limited to 16 stones: 1 Montana sapphire loose stone (including teal blue and bicolor) Multiple purchase discounts available

Limited to 16 stones: 1 Montana sapphire loose stone (including teal blue and bicolor) Multiple purchase discounts available
Sold out Limited Edition of 10 Bicolor Gacha! 💎 Includes two Zimbabwean euclase stones (average 0.088ct), a 1.03ct bicolor sapphire, a bicolor chrysoberyl, and more. Discounts available for multiple purchases.

Limited Edition of 10 Bicolor Gacha! 💎 Includes two Zimbabwean euclase stones (average 0.088ct), a 1.03ct bicolor sapphire, a bicolor chrysoberyl, and more. Discounts available for multiple purchases.
Sold out Color Change Gacha💎 Burmese Color Change Zircon, Color Shift Sapphire, Color Shift Cobalt Spinel, and More (Multiple Purchase Discounts Available)

Color Change Gacha💎 Burmese Color Change Zircon, Color Shift Sapphire, Color Shift Cobalt Spinel, and More (Multiple Purchase Discounts Available)
Sold out マダガスカル産ホットピンクサファイア 1.120ctルース

[On Sale 11/23 10pm] Madagascar Hot Pink Sapphire 1.120ct Loose GIA
Sold out [12561381] Sri Lankan Blue Sapphire (Ice Blue) 0.300ct Loose

[12561381] Sri Lankan Blue Sapphire (Ice Blue) 0.300ct Loose
Sold out [12561377] Blue sapphire 1.095ct loose stone

[12561377] Blue sapphire 1.095ct loose stone
Sold out タンザニア産バイカラーサファイア 0.343ctルース

[11/18 22:00 Sale] Tanzanian Bicolor Sapphire 0.343ct Loose
Sold out モザンビーク産ピンクサファイア 0.213ctルース（ホットピンクサファイア）

Pink sapphire from Mozambique 0.213ct loose (hot pink sapphire)
Sold out ミャンマー産スターサファイア 11.192ctルース

[11/11 22:00 Sale] Myanmar Star Sapphire 11.192ct Loose

Sold out Lottery Sale 4 [Reserved for Winners] [Published 22602513] 18K Yellow Gold Cornflower Blue Sapphire 4.5mm/0.41ct, Apatite, and Paraiba Tourmaline Ring

Lottery Sale 4 [Reserved for Winners] [Published 22602513] 18K Yellow Gold Cornflower Blue Sapphire 4.5mm/0.41ct, Apatite, and Paraiba Tourmaline Ring

Sold out 【猫カット】タイ産サファイア 4.746ctルース

[11/9 22:00 Sale] [Cat Cut] Thai Sapphire 4.746ct Loose
Sold out バイカラーサファイア 0.299ctルース

[11/22 22:00] Tanzanian Bicolor Sapphire 0.299ct Loose
Sold out ヴァイオレットサファイア 0.310ctルース

[On sale at 10pm on November 7th] Violet sapphire 0.310ct loose stone
Sold out Pt950 バイカラーサファイア 0.398ct リング

Pt950 Madagascar Color Change Sapphire (Bicolor Sapphire) 0.398ct Ring

Sold out タンザニア産バイカラーサファイア 0.955ctルース

Tanzanian bicolor sapphire 0.955ct loose stone

Sold out マダガスカル産ブルーサファイア 0.338ctルース

0.338ct loose blue sapphire from Madagascar
Sold out 非加熱ブルーサファイア 1.685ctルース

[Published in 12539647] Unheated blue sapphire 1.685ct loose

Sold out ブルーサファイア 0.244ctルース

0.244ct loose blue sapphire from Madagascar

Sold out スターサファイア 0.973ctルース

Star sapphire 0.973ct loose
Sold out バンカチャサファイア（スターサファイア） 69.655ctルース

Bangkacha sapphire (star sapphire) 69.655ct loose
coming soon ピンクサファイア 0.176ctルース

Mozambique pink sapphire 0.176ct loose stone Sale price¥6,980
Sold out ブルーサファイア 0.843ctルース

0.843ct loose blue sapphire from Madagascar
Sold out ブルーサファイア 1.141ctルース

1.141ct loose blue sapphire from Madagascar

Sold out マダガスカル産ブルーサファイア 4.7mm/0.522ctルース

Madagascar Blue Sapphire 4.7mm/0.522ct Loose
coming soon パープルサファイア 0.943ctルース

[Sakura In-Cut] Madagascar Purple Sapphire 6.0mm/0.943ct Loose Stone Sale price¥98,000
Sold out カシミール産非加熱サファイア 0.080ctルース

Unheated Kashmir Sapphire 2.5mm/0.080ct Loose GIA

Sold out サファイア 0.890ctルース

Unheated Sri Lankan blue sapphire 0.890ct loose
Sold out Pt950 タンザニア産カラーシフトサファイア 0.247ct ペンダントトップ（ネックレストップ）

Pt950 Tanzanian Color-Shifting Sapphire 0.247ct Pendant (Necklace)

Sold out パパラチアサファイア 0.228ctルース

Madagascar Padparadscha Sapphire 3.5mm/0.228ct Loose
Sold out 非加熱パパラチアサファイア 3.9mm/0.290ctルース GIA

Unheated Padparadscha Sapphire 3.9mm/0.290ct Loose GIA
Sold out スリランカ産ツインスターサファイア 3.242ctルース

Sri Lankan Twin Star Sapphire 3.242ct Loose
Sold out グリーンランド産ピンクサファイア 4.3mm/0.465ctルース

Pink sapphire from Greenland 4.3mm/0.465ct loose with certificate
Sold out グリーンランド産ピンクサファイア 0.336ctルース 証明書付

Pink sapphire from Greenland 0.336ct loose with certificate
Sold out マダガスカル産サファイア 0.569ctルース

Madagascar sapphire 0.569ct loose stone
Sold out マダガスカル産サファイア 0.344ctルース

Madagascar sapphire 0.344ct loose stone
Sold out マダガスカル産サファイア 0.615ctルース

Madagascar sapphire 0.615ct loose stone
Sold out マダガスカル産サファイア 0.516ctルース

Madagascar sapphire 0.516ct loose stone
Sold out 【4/17 22時販売】【猫カット】バンカチャサファイア 6mm/0.812ctルース - カラッツSTORE

[Cat cut] Bankacha sapphire 0.812ct loose stone
Sold out Unheated blue sapphire from Madagascar 1.310ct loose GIA

Unheated blue sapphire from Madagascar 1.310ct loose GIA
Sold out スリランカ産スターサファイア 0.533ctルース

Sri Lankan Star Sapphire 0.533ct Loose
Sold out バイカラーサファイア 0.970ctルース

Bicolor sapphire 0.970ct loose stone
Sold out スリランカ産イエローサファイア 0.481ctルース

Sri Lankan Yellow Sapphire 0.481ct Loose
Sold out コーンフラワーブルーサファイア 0.480ctルース

Cornflower Blue Sapphire 4.5mm/0.480ct Loose Stone AIGS
Sold out 【12534276掲載】バイカラーサファイア 0.301ctルース

Sri Lankan bicolor sapphire 0.301ct 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.