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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
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[Available at 10 PM on January 30th] Limited to 6 Silky Pink Sapphires from Vietnam (Sanjay Cut, Round, 3.0-3.3mm) Gacha [Multiple Purchase Discounts Available]

[Available at 10 PM on January 30th] Limited to 6 Silky Pink Sapphires from Vietnam (Sanjay Cut, Round, 3.0-3.3mm) Gacha [Multiple Purchase Discounts Available] Sale price¥5,980
ミャンマー産バイカラースターサファイア 0.920ctルース

Bicolor star sapphire from Myanmar 0.920ct loose Sale price¥39,800
[Sakura In-Cut] 6.0mm/0.839ct Loose Sapphire from Ratnapura, Sri Lanka [Available at 10 PM on January 24th]

[Sakura In-Cut] 6.0mm/0.839ct Loose Sapphire from Ratnapura, Sri Lanka [Available at 10 PM on January 24th] Sale price¥59,800
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 Sale price¥6,980
[On Sale at 10 PM on January 29th] Madagascar Purple Sapphire 4.2mm/0.418ct Loose

[On Sale at 10 PM on January 29th] Madagascar Purple Sapphire 4.2mm/0.418ct Loose Sale price¥19,800
[On Sale at 10 PM on January 27th] 0.291ct Unheated Silky Pink Sapphire from Vietnam

[On Sale at 10 PM on January 27th] 0.291ct Unheated Silky Pink Sapphire from Vietnam Sale price¥12,800
[On Sale at 10 PM on January 23rd] Unheated Silky Pink Sapphire from Vietnam, 0.168ct Loose

[On Sale at 10 PM on January 23rd] Unheated Silky Pink Sapphire from Vietnam, 0.168ct Loose Sale price¥9,800
[On sale at 10pm on January 25th] Blue Sapphire 5.0mm/0.552ct Loose

[On sale at 10pm on January 25th] Blue Sapphire 5.0mm/0.552ct Loose Sale price¥18,800
[On Sale at 10 PM on January 20th] 0.257ct Unheated Silky Pink Sapphire from Vietnam

[On Sale at 10 PM on January 20th] 0.257ct Unheated Silky Pink Sapphire from Vietnam Sale price¥12,800
[On Sale at 10 PM on January 20th] Sri Lankan Bicolor Sapphire 0.607ct Loose

[On Sale at 10 PM on January 20th] Sri Lankan Bicolor Sapphire 0.607ct Loose Sale price¥15,800
[On Sale at 10 PM on January 17th] Sri Lankan Bicolor Sapphire 0.586ct Loose

[On Sale at 10 PM on January 17th] Sri Lankan Bicolor Sapphire 0.586ct Loose Sale price¥39,800
[On Sale at 10 PM on January 17th] Cornflower Blue Sapphire 0.680ct Loose Stone AIGS

[On Sale at 10 PM on January 17th] Cornflower Blue Sapphire 0.680ct Loose Stone AIGS Sale price¥128,000
スリランカ産スターサファイア 5.225ctルース

[On Sale at 10 PM on January 9th] Sri Lankan Twin Star Sapphire 5.225ct Loose Sale price¥98,000
スリランカ産スターサファイア 1.743ctルース

[On Sale at 10 PM on January 9th] Sri Lankan Triple Star Sapphire 1.743ct Loose Sale price¥128,000
スリランカ産スターサファイア 3.928ctルース

[On Sale at 10 PM on January 9th] Sri Lankan Twin Star Sapphire 3.928ct Loose Sale price¥128,000
《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
"PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device Image Ring - Enforcer Design [Yayoi Rokuitsuka Model] "Ice Blue Sapphire"

"PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device Image Ring - Enforcer Design [Yayoi Rokuitsuka Model] "Ice Blue Sapphire" Sale priceFrom ¥25,800
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
Limited to 22 Sapphire Gacha (Includes Sakura In-Cut & Sakura Shape Sapphire, Bonus Hot Pink Sapphire) (Multiple Purchase Discounts Available)

Limited to 22 Sapphire Gacha (Includes Sakura In-Cut & Sakura Shape Sapphire, Bonus Hot Pink Sapphire) (Multiple Purchase Discounts Available) Sale price¥6,980
Limited to 25 stones: 1 unheated yogo sapphire rough stone. Discounts available for multiple purchases.

Limited to 25 stones: 1 unheated yogo sapphire rough stone. Discounts available for multiple purchases. Sale price¥4,980
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
Limited to 14 stones: Beryllium-heated sapphire (3.5mm, KEN cut) - 1 loose stone. Discounts available for multiple purchases.

Limited to 14 stones: Beryllium-heated sapphire (3.5mm, KEN cut) - 1 loose stone. Discounts available for multiple purchases. Sale price¥1,580
Limited to 6 stones: 1 loose, unheated silky pink sapphire from Vietnam (milky pink sapphire) Multiple purchase discounts available

Limited to 6 stones: 1 loose, unheated silky pink sapphire from Vietnam (milky pink sapphire) Multiple purchase discounts available Sale price¥5,980
Limited to 14 stones: Beryllium-heated sapphire (3.5mm, KEN cut) - 1 loose stone. Discounts available for multiple purchases.

Limited to 14 stones: Beryllium-heated sapphire (3.5mm, KEN cut) - 1 loose stone. Discounts available for multiple purchases. Sale price¥1,580
Limited to 15 stones: One loose, unheated silky pink sapphire from Vietnam (2.5mm, round cut) [Multiple purchase discounts available]

Limited to 15 stones: One loose, unheated silky pink sapphire from Vietnam (2.5mm, round cut) [Multiple purchase discounts available] Sale price¥3,980
Limited to 14 stones: One loose Mozambique hot pink sapphire (pear-shaped, approximately 4 x 3 mm) [Multiple purchase discounts available]

Limited to 14 stones: One loose Mozambique hot pink sapphire (pear-shaped, approximately 4 x 3 mm) [Multiple purchase discounts available] Sale price¥4,980
Limited to 14 stones: 3mm single unheated sapphire from the Theppanawa mine in Sri Lanka. Discounts available for multiple purchases.

Limited to 14 stones: 3mm single unheated sapphire from the Theppanawa mine in Sri Lanka. Discounts available for multiple purchases. Sale price¥5,980
Limited to 5 stones: 1 loose Madagascar sapphire (3mm, hexagonal cut) Multiple purchase discounts available

Limited to 5 stones: 1 loose Madagascar sapphire (3mm, hexagonal cut) Multiple purchase discounts available Sale price¥3,980
Limited to 8 stones: 1 loose kite cut stone (illusion sunstone, sapphire, emerald, spessartine garnet, etc.) Multiple purchase discounts available

Limited to 8 stones: 1 loose kite cut stone (illusion sunstone, sapphire, emerald, spessartine garnet, etc.) Multiple purchase discounts available Sale price¥5,980
Limited to 10 stones: 1 unheated yogo sapphire rough stone. Discounts available for multiple purchases.

Limited to 10 stones: 1 unheated yogo sapphire rough stone. Discounts available for multiple purchases. Sale price¥5,980
Limited to 4 stones: 1 loose silky sapphire from Sri Lanka. Discounts available for multiple purchases.

Limited to 4 stones: 1 loose silky sapphire from Sri Lanka. Discounts available for multiple purchases. Sale price¥3,980
[Available at 10 PM on January 10th] Cornflower Blue Sapphire 4.5mm/0.430ct Loose Stone AIGS

[Available at 10 PM on January 10th] Cornflower Blue Sapphire 4.5mm/0.430ct Loose Stone AIGS Sale price¥98,000
グリーンサファイア 0.348ctルース

Mint green sapphire 0.348ct loose Sale price¥9,800
マダガスカル産バイカラーサファイア 0.252ctルース

Bicolor sapphire from Madagascar 0.252ct loose Sale price¥9,800
マダガスカル産バイカラーサファイア 0.265ctルース

Bicolor sapphire from Madagascar 0.265ct loose Sale price¥16,800
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 Sale price¥7,980
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 Sale price¥7,980
イエローサファイア 0.222ctルース

Yellow sapphire from Sri Lanka 0.222ct loose Sale price¥9,800
ベトナム産非加熱シルキーピンクサファイア 0.247ctルース

Unheated silky pink sapphire from Vietnam 0.247ct loose Sale price¥8,800
Sri Lankan Yellow Sapphire 0.343ct Loose

Sri Lankan Yellow Sapphire 0.343ct Loose Sale price¥12,800
[On sale at 10pm on January 24th] 1.689ct loose teal blue sapphire

[On sale at 10pm on January 24th] 1.689ct loose teal blue sapphire Sale price¥98,000
Sri Lankan star sapphire 12.679ct loose

Sri Lankan star sapphire 12.679ct loose Sale price¥158,000
スリランカ産スターサファイア 5.066ctルース

Sri Lankan star sapphire 5.066ct loose Sale price¥69,800
スリランカ産スターサファイア 3.821ctルース

Sri Lankan star sapphire 3.821ct loose Sale price¥79,800
[1/11 22:00 Sale] Sri Lankan Star Sapphire 3.317ct Loose

[1/11 22:00 Sale] Sri Lankan Star Sapphire 3.317ct Loose Sale price¥59,800
[1/3 22:00 Sale] Sri Lankan Star Sapphire 11.342ct Loose

[1/3 22:00 Sale] Sri Lankan Star Sapphire 11.342ct Loose Sale price¥69,800
Sri Lankan blue sapphire 1.008ct loose stone

Sri Lankan blue sapphire 1.008ct loose stone Sale price¥69,800

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.