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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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タンザニア・ウィンザー産バイカラーサファイア 1.030ctルース

Bicolor sapphire 1.030ct loose from Windsor, Tanzania Sale price¥89,800
スリランカ産ホワイトサファイア 2.9mm/0.086ctルース（ローズカット）

Sri Lankan white sapphire 2.9mm/0.086ct loose (rose cut) Sale price¥3,980
モゴック産バイカラーピンクスターサファイア 0.360ctルース

Bicolor pink star sapphire from Mogok 0.360ct loose Sale price¥24,800
非加熱ブルーサファイア 0.862ctルース

[12549429] Blue sapphire 0.862ct loose stone Sale price¥25,800
[On sale at 10 PM on September 21st] Limited to 14 stones: Beryllium-heated Sapphire (3.5mm, KEN Cut) - Single Loose Stone [Multiple purchase discounts available]

[On sale at 10 PM on September 21st] Limited to 14 stones: Beryllium-heated Sapphire (3.5mm, KEN Cut) - Single Loose Stone [Multiple purchase discounts available] Sale price¥1,580
ブルーサファイア 0.291ctルース

[12559785] Blue sapphire 0.291ct loose stone Sale price¥18,800
ピンクスターサファイア 0.619ctルース

Pink star sapphire 0.619ct loose Sale price¥5,980
ミャンマー産バイカラースターサファイア 1.190ctルース（ピンクサファイア）

Bicolor star sapphire from Myanmar 1.190ct loose (pink sapphire) Sale price¥25,800
シエラレオネ産サファイア 1.210ctルース

Sierra Leone sapphire 1.210ct loose Sale price¥7,980
シエラレオネ産サファイア 1.470ctルース

Sierra Leone sapphire 1.470ct loose Sale price¥9,800
ピンクサファイア 0.934ctルース

Pink sapphire 0.934ct loose Sale price¥15,800
ブルーサファイア 0.591ctルース

[Sold at 10pm on September 15th] Blue sapphire 0.591ct loose stone Sale price¥9,800
[Available at 10 PM on September 15th] Limited to 11 stones: One loose silky pink sapphire from Vietnam (2.0-2.5mm, heavy inclusions) [Multiple purchase discounts available]

[Available at 10 PM on September 15th] Limited to 11 stones: One loose silky pink sapphire from Vietnam (2.0-2.5mm, heavy inclusions) [Multiple purchase discounts available] Sale price¥3,980
[September 10 PM Sale] [Limited to 14 stones] 3mm Unheated Sapphire from Theppanawa Mine, Sri Lanka (Single Loose Stone) [Multiple Purchase Discounts Available]

[September 10 PM Sale] [Limited to 14 stones] 3mm Unheated Sapphire from Theppanawa Mine, Sri Lanka (Single Loose Stone) [Multiple Purchase Discounts Available] Sale price¥5,980
[Available at 10 PM on September 15th] Limited to 22 Sapphire Gacha (Includes Sakura In-Cut & Sakura Shape Sapphire, Bonus Hot Pink Sapphire) [Multiple Purchase Discounts Available]

[Available at 10 PM on September 15th] Limited to 22 Sapphire Gacha (Includes Sakura In-Cut & Sakura Shape Sapphire, Bonus Hot Pink Sapphire) [Multiple Purchase Discounts Available] Sale price¥6,980
グリーンサファイア 7.545ctルース（スペードカット）

Green sapphire 7.545ct loose (spade cut) Sale price¥59,800
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 Sale price¥148,000
ブルーサファイア 0.314ctルース

[Sold at 10 PM on September 19th] Blue Sapphire 4.0mm/0.314ct Loose Sale price¥112,800
[On sale at 10 PM on September 6th] Limited to 8 stones: Kite cut loose stone (Illusion Sunstone, Sapphire, Emerald, Spessartine Garnet, etc.) [Multiple purchase discounts available]

[On sale at 10 PM on September 6th] Limited to 8 stones: Kite cut loose stone (Illusion Sunstone, Sapphire, Emerald, Spessartine Garnet, etc.) [Multiple purchase discounts available] Sale price¥5,980
[Available at 10 PM on September 6th] Limited to 4 stones: One loose pink sapphire (pear shape) from Madagascar [Multiple purchase discounts available]

[Available at 10 PM on September 6th] Limited to 4 stones: One loose pink sapphire (pear shape) from Madagascar [Multiple purchase discounts available] Sale price¥5,980
《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
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
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 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 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
[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
Limited to 8 stones: 1 Sri Lankan star sapphire loose stone (5mm, round cabochon cut) Multiple purchase discounts available

Limited to 8 stones: 1 Sri Lankan star sapphire loose stone (5mm, round cabochon cut) Multiple purchase discounts available Sale price¥7,980
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
Rose-cut beryllium-treated sapphire, 1 loose stone (4mm, September birthstone) {Multiple purchase discounts available}

Rose-cut beryllium-treated sapphire, 1 loose stone (4mm, September birthstone) {Multiple purchase discounts available} Sale price¥1,580
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 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
[On sale September 6th at 10 PM] [Limited to 7 stones] Madagascar sapphire, 1 loose stone (long hexagonal cut, approximately 5 x 3 mm) [Multiple purchase discounts available]

[On sale September 6th at 10 PM] [Limited to 7 stones] Madagascar sapphire, 1 loose stone (long hexagonal cut, approximately 5 x 3 mm) [Multiple purchase discounts available] Sale price¥6,980
[On Sale at 10 PM on September 5th] [Limited to 6 stones] 1 Unheated Sri Lankan Sapphire Loose with Silk Inclusions (Average 0.31ct) [Multiple Purchase Discounts Available]

[On Sale at 10 PM on September 5th] [Limited to 6 stones] 1 Unheated Sri Lankan Sapphire Loose with Silk Inclusions (Average 0.31ct) [Multiple Purchase Discounts Available] Sale price¥4,980
[On sale at 10 PM on September 6th] [Limited to 6 stones] 1 loose unheated sapphire from Sri Lanka (average 0.77 carats) [Multiple purchase discounts available]

[On sale at 10 PM on September 6th] [Limited to 6 stones] 1 loose unheated sapphire from Sri Lanka (average 0.77 carats) [Multiple purchase discounts available] Sale price¥6,980
ピンクサファイア 0.169ctルース

[On Sale at 10 PM on August 29th] 0.169ct Loose Pink Sapphire from Mozambique Sale price¥6,980
ピンクサファイア 0.145ctルース

[On Sale at 10 PM on September 17th] Madagascar Pink Sapphire 0.145ct Loose Sale price¥6,980
ピンクサファイア 0.179ctルース

[Sold at 10 PM on September 5th] Pink sapphire 0.179ct loose stone Sale price¥6,980
ブルーサファイア 0.417ctルース

[On sale at 10pm on September 17th] 0.417ct loose blue sapphire from Madagascar Sale price¥9,800
マダガスカル産ブルーサファイア 0.374ctルース

[On sale at 10 PM on September 1st] 0.374ct loose blue sapphire from Madagascar Sale price¥9,800
ブルーサファイア 0.266ctルース

[On Sale at 10 PM on September 6th] 0.266ct Loose Blue Sapphire from Madagascar Sale price¥8,800
ブルーサファイア 0.170ctルース

[On Sale at 10 PM on September 6th] 0.170ct Loose Blue Sapphire from Madagascar Sale price¥8,800
ブルーサファイア 0.162ctルース

[On Sale at 10 PM on September 6th] 0.162ct Loose Blue Sapphire from Madagascar Sale price¥9,800
非加熱サファイア 2.430ctルース GIA

Unheated sapphire 2.430ct loose GIA Sale price¥298,000
パープルサファイア 0.313ctルース

Purple sapphire 0.313ct loose Sale price¥6,980
パープルサファイア 0.220ctルース

Purple sapphire 0.220ct loose Sale price¥3,980

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.