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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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[Available at 10 PM on August 2nd] {Limited to 8 sets} Gemstone Gacha 💎 1 of the Three Great Gemstones Gacha + 2 Loose Pink Sapphires {Multiple purchase discounts available}

[Available at 10 PM on August 2nd] {Limited to 8 sets} Gemstone Gacha 💎 1 of the Three Great Gemstones Gacha + 2 Loose Pink Sapphires {Multiple purchase discounts available} Sale price¥6,980
コーンフラワーブルーサファイア 0.530ctルース AIGS

Cornflower blue sapphire 0.530ct loose stone Sale price¥128,000
パパラチアサファイア 3.4mm/0.200ctルース DGL

Padparadscha sapphire 0.200ct loose Sale price¥29,800
【さくらインカット】非加熱ピンクサファイア 2.442ctルース《コラボ》日独鑑 - カラッツSTORE

[Sakura in-cut] Unheated pink sapphire 2.442ct loose "Collaboration" Japanese-German edition Sale price¥188,000
ホワイトサファイア 0.537ctルース

White sapphire 0.537ct loose Sale price¥15,800
ホワイトサファイア 0.464ctルース

White sapphire 0.464ct loose Sale price¥9,800
White sapphire 0.418ct loose

White sapphire 0.418ct loose Sale price¥12,800
イエローサファイア 0.385ctルース

Yellow sapphire 0.385ct loose Sale price¥9,800
ホワイトサファイア 0.364ctルース

White sapphire 0.364ct loose Sale price¥9,800
ホワイトサファイア 0.271ctルース

White sapphire 0.271ct loose Sale price¥7,980
ホワイトサファイア 0.212ctルース

White sapphire 0.212ct loose Sale price¥6,980
ホワイトサファイア 0.462ctルース

White sapphire 4.5mm/0.462ct loose Sale price¥9,800
ホワイトサファイア 4.5mm/0.414ctルース

White sapphire 4.5mm/0.414ct loose Sale price¥12,800
【12533236掲載】ホワイトサファイア 0.338ctルース

White sapphire 0.338ct loose Sale price¥9,800
イエローサファイア 0.300ctルース

[8/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.300ct Loose Sale price¥15,800
非加熱パパラチアサファイア 3.9mm/0.290ctルース GIA

[On Sale at 10 PM on August 16th] Unheated Padparadscha Sapphire 3.9mm/0.290ct Loose GIA Sale price¥55,800
Pt950 バイカラーサファイア 0.398ct リング

[On sale at 10pm on August 16th] Pt950 Tanzanian Bicolor Sapphire 0.398ct Paraiba Tourmaline Ring Sale price¥128,000
スリランカ産ツインスターサファイア 3.242ctルース

[Available at 10 PM on August 15th] Sri Lankan Twin Star Sapphire 3.242ct Loose Sale price¥59,800
【KEN氏】バイカラーサファイア 0.853ctルース - カラッツSTORE

Bicolor sapphire 0.853ct loose stone Sale price¥9,800
モンタナサファイア 1.9mm/0.033ctルース

Montana Sapphire 1.9mm/0.033ct loose Sale price¥4,980
[Available at 10 PM on August 3rd] Montana Sapphire 2.8mm/0.098ct Loose Stone (Yellow)

[Available at 10 PM on August 3rd] Montana Sapphire 2.8mm/0.098ct Loose Stone (Yellow) Sale price¥6,980
[Available at 10 PM on August 3rd] Montana Sapphire 2.5mm/0.071ct Loose Stone (Yellow)

[Available at 10 PM on August 3rd] Montana Sapphire 2.5mm/0.071ct Loose Stone (Yellow) Sale price¥5,980
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 Sale price¥6,980
Ice ruby ​​(pink sapphire) from Greenland 0.416ct loose with certificate

Ice ruby ​​(pink sapphire) from Greenland 0.416ct loose with certificate Sale price¥18,800
【12541382掲載】グリーンランド産サファイア 0.754ctルース

Pink sapphire from Greenland 0.754ct loose with certificate Sale price¥25,800
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 Sale price¥9,800
スリランカ産イエローサファイア 6mm/0.816ctルース

Yellow sapphire from Sri Lanka 6mm/0.816ct loose Sale price¥18,800
スリランカ産イエローサファイア 6mm/0.962ctルース

Yellow sapphire from Sri Lanka 6mm/0.962ct loose Sale price¥18,800
K18 bicolor sapphire 0.129ct/blue sapphire ring

K18 bicolor sapphire 0.129ct/blue sapphire ring Sale price¥69,800
【KEN氏】タンザニア産ゴールデンシーンサファイア 0.495ctルース - カラッツSTORE

Tanzanian Golden Sheen Sapphire 0.495ct Loose Sale price¥6,980
マダガスカル産イエローサファイア 0.327ctルース

[On Sale at 10 PM on August 14th] 0.327ct Loose Yellow Sapphire from Madagascar Sale price¥12,800
マダガスカル産ピンクサファイア 0.324ctルース

[On Sale at 10 PM on August 9th] Madagascar Pink Sapphire 0.324ct Loose Sale price¥12,800
マダガスカル産サファイア 0.298ctルース

[On Sale at 10 PM on August 13th] Madagascar Sapphire 0.298ct Loose Sale price¥12,800
マダガスカル産サファイア 0.289ctルース

[On sale from 10pm on August 4th] Madagascar sapphire 0.289ct loose stone Sale price¥12,800
マダガスカル産サファイア 0.569ctルース

[On sale at 10pm on August 14th] Madagascar sapphire 0.569ct loose Sale price¥18,800
マダガスカル産サファイア 0.503ctルース

[On Sale at 10 PM on August 9th] Madagascar Sapphire 0.503ct Loose Sale price¥15,800
マダガスカル産サファイア 0.344ctルース

[On Sale at 10 PM on August 2nd] Madagascar Sapphire 0.344ct Loose Sale price¥12,800
マダガスカル産サファイア 0.516ctルース

[On Sale at 10 PM on August 2nd] Madagascar Sapphire 0.516ct Loose Sale price¥12,800
スリランカ産スターサファイア 2.062ctルース

[On sale at 10pm on August 15th] Sri Lankan Star Sapphire 2.062ct Loose Sale price¥12,800
ピンクサファイア 0.400ctルース

0.400ct Madagascar Pink Sapphire Loose (Heart Shape) Sale price¥19,800
《再入荷》【宝石商の道具】ゲルタックケース3個セット《透明・黒背景の2種類有》（ブルーサファイア3石付） - カラッツSTORE

[Jeweler's Tools] Set of 3 gel tack cases (2 types: transparent and black background) (includes 3 blue sapphires) (discount available for multiple purchases) Sale price¥3,980
ベリリウム拡散処理サファイア1石（約2.5mm,ラウンドカット）

1 beryllium diffused sapphire stone (approximately 2.5mm, round cut)《Multiple purchase discounts available》 Sale price¥1,580
Gem Gacha💎 Cat Set (1 gemstone + 2 sapphires) {Multiple purchase discounts available}

Gem Gacha💎 Cat Set (1 gemstone + 2 sapphires) {Multiple purchase discounts available} Sale price¥3,333
スリランカ産サファイア《ラトゥナプラ》1石ルース(平均0.75ct)

Gem Gacha💎 Sri Lankan Sapphire《Ratnapura》1 loose stone (average 0.75ct)《Multiple purchase discount available》 Sale price¥5,980
On sale from 10 PM on Saturday, August 16th! "PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring - Enforcer Design [Yayoi Rokuitsuka Model] "Ice Blue Sapphire"

On sale from 10 PM on Saturday, August 16th! "PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring - Enforcer Design [Yayoi Rokuitsuka Model] "Ice Blue Sapphire" Sale priceFrom ¥25,800
Limited to 10 stones: 1 loose star sapphire from Sri Lanka. Discounts available for multiple purchases.

Limited to 10 stones: 1 loose star sapphire from Sri Lanka. Discounts available for multiple purchases. Sale price¥2,980
Limited to 19 stones: Blue sapphire from Madagascar (medium blue, oval cut) Discounts available for multiple purchases

Limited to 19 stones: Blue sapphire from Madagascar (medium blue, oval cut) Discounts available for multiple purchases Sale price¥2,980
Limited to 8 stones: 1 unheated silky pink sapphire from Vietnam (including silky ruby) Discounts for multiple purchases available

Limited to 8 stones: 1 unheated silky pink sapphire from Vietnam (including silky ruby) Discounts for multiple purchases available 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の取り組みと社会貢献

業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。

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.