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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 Unheated Vietnamese Silky Pink Sapphire 0.291ct Loose Stone

Unheated Vietnamese Silky Pink Sapphire 0.291ct Loose Stone
Sold out 0.218ct Unheated Silky Pink Sapphire from Vietnam

0.218ct Unheated Silky Pink Sapphire from Vietnam
Sold out 0.168ct Unheated Silky Pink Sapphire from Vietnam

0.168ct Unheated Silky Pink Sapphire from Vietnam
Sold out 【12546496掲載】ベトナム産非加熱シルキーピンクサファイア 0.161ctルース

Unheated silky pink sapphire from Vietnam 0.161ct loose
Sold out Unheated Madagascar Purple Sapphire 1.170ct Loose GIT

Unheated Madagascar Purple Sapphire 1.170ct Loose GIT

Sold out Unheated Blue Sapphire from Madagascar, 1.380ct Loose, AIGS

Unheated Blue Sapphire from Madagascar, 1.380ct Loose, AIGS

Sold out 0.321ct Blue Sapphire Loose Gemstone from Sri Lanka

0.321ct Blue Sapphire Loose Gemstone from Sri Lanka
Sold out Sri Lankan Yellow Sapphire 0.526ct Loose

Sri Lankan Yellow Sapphire 0.526ct Loose
Sold out Cornflower Blue Sapphire 0.680ct Loose AIGS

Cornflower Blue Sapphire 0.680ct Loose AIGS
Sold out Tanzanian Violet Sapphire 0.920ct Loose

Tanzanian Violet Sapphire 0.920ct Loose
Sold out Cornflower Blue Sapphire 4.5mm/0.430ct Loose Stone AIGS

Cornflower Blue Sapphire 4.5mm/0.430ct Loose Stone AIGS
Sold out Royal Blue Sapphire 1.00ct Loose AIGS

Royal Blue Sapphire 1.00ct Loose AIGS

Sold out ピンクサファイア 0.881ctルース

Pink sapphire 0.881ct loose

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 マダガスカル産バイカラーサファイア 0.198ctルース

Bicolor sapphire from Madagascar 0.198ct loose
Sold out マダガスカル産バイカラーサファイア 0.212ctルース

Bicolor sapphire from Madagascar 0.212ct loose
Sold out ベトナム産非加熱シルキーピンクサファイア 0.197ctルース

Unheated silky pink sapphire from Vietnam 0.197ct loose
Sold out [12/7 22:00] Sri Lankan Yellow Sapphire 0.508ct Loose

[12/7 22:00] Sri Lankan Yellow Sapphire 0.508ct Loose
Sold out Sri Lankan blue sapphire 0.645ct loose stone

Sri Lankan blue sapphire 0.645ct loose stone
Sold out Madagascar Bicolor Sapphire 5.8mm/1.006ct Loose

Madagascar Bicolor Sapphire 5.8mm/1.006ct Loose
Sold out Madagascar Bicolor Sapphire 4.5mm/0.637ct Loose

Madagascar Bicolor Sapphire 4.5mm/0.637ct Loose
Sold out Madagascar Sapphire 4.6mm/0.472ct Loose

Madagascar Sapphire 4.6mm/0.472ct Loose
Sold out Madagascar Bicolor Sapphire 3.6mm/0.232ct Loose

Madagascar Bicolor Sapphire 3.6mm/0.232ct Loose
Sold out 2.393ct Synthetic Sapphire Loose Stone (Synthetic Blue Sapphire)

2.393ct Synthetic Sapphire Loose Stone (Synthetic Blue Sapphire)
Sold out 2.077ct Synthetic Sapphire Loose Stone (Synthetic Blue Sapphire)

2.077ct Synthetic Sapphire Loose Stone (Synthetic Blue Sapphire)
Sold out Synthetic sapphire 1.416ct loose stone (synthetic pink sapphire)

Synthetic sapphire 1.416ct loose stone (synthetic pink sapphire)
Sold out ブラックスターサファイア 1.410ctルース

[12/5 22:00 Sale] Black Star Sapphire 1.410ct Loose
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

Madagascar Hot Pink Sapphire 1.120ct Loose GIA
Sold out グリーンサファイア 0.518ctルース

Green sapphire 0.518ct loose (teal green)
Sold out カラーチェンジサファイア 0.946ctルース

Color change sapphire 0.946ct loose
Sold out グリーンランド産サファイア 0.271ctルース

Greenland sapphire 0.271ct loose stone with certificate
Sold out タンザニア産バイカラーサファイア 0.380ctルース

Tanzanian Bicolor Sapphire 0.380ct Loose (Teal Color)
Sold out スリランカ産ブルーサファイア（アイスブルー） 0.300ctルース

Sri Lankan Blue Sapphire (Ice Blue) 0.300ct Loose
Sold out Sri Lankan Purple Sapphire 0.393ct Loose Stone with Certificate of Authenticity

Sri Lankan Purple Sapphire 0.393ct Loose Stone with Certificate of Authenticity
Sold out ブルーサファイア 1.095ctルース

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

Tanzanian bicolor sapphire 0.343ct loose stone
Sold out Sapphire from Madagascar 4.5mm/0.414ct loose

Sapphire from Madagascar 4.5mm/0.414ct 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 タンザニア産バイカラーサファイア 1.002ctルース

[12544901 published] Bicolor sapphire 1.000ct loose
Sold out マダガスカル産バイカラーサファイア 1.341ctルース

[12544897 published] Bicolor sapphire 1.341ct loose
Sold out タンザニア産ピンクサファイア 0.566ctルース

[12544896 published] Sapphire 0.566ct loose
Sold out バイカラーサファイア 0.704ctルース

[12544888 published] Bicolor sapphire 0.704ct loose
Sold out ミャンマー産スターサファイア 11.192ctルース

Myanmar Star Sapphire 11.192ct Loose

Sold out K18YG コーンフラワーブルーサファイア 4.5mm/0.41ct・アウイナイト・パライバトルマリン リング

18K Yellow Gold Cornflower Blue Sapphire 4.5mm/0.41ct, Apatite, and Paraiba Tourmaline Ring

Sold out Yellow sapphire from Madagascar 0.232ct loose

Yellow sapphire from Madagascar 0.232ct loose
Sold out 【猫カット】タイ産サファイア 5.255ctルース

[Cat Cut] Thai Sapphire 5.255ct Loose
Sold out 【猫カット】タイ産サファイア 4.746ctルース

[Cat Cut] Thai Sapphire 4.746ct Loose
Sold out バイカラーサファイア 0.299ctルース

Tanzanian bicolor sapphire 0.299ct 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.