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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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[On sale at 10 PM on 6/21] Sapphire Gacha💎 with a chance to win one of 12 limited cornflower blue sapphires with AIGS certification. Comes with a trillion-cut sapphire bonus. (Multiple purchase discount available)

[On sale at 10 PM on 6/21] Sapphire Gacha💎 with a chance to win one of 12 limited cornflower blue sapphires with AIGS certification. Comes with a trillion-cut sapphire bonus. (Multiple purchase discount available) Sale price¥3,980
[On Sale June 6th, 10 PM JST] 11-Piece Limited Edition Madagascar Sapphire Gacha (Including bi-color and silky varieties, 3.5-5.4mm) [Multi-buy discount available]

[On Sale June 6th, 10 PM JST] 11-Piece Limited Edition Madagascar Sapphire Gacha (Including bi-color and silky varieties, 3.5-5.4mm) [Multi-buy discount available] Sale price¥4,980
K18 白蝶真珠（白蝶パール） 鳥モチーフ ペンダントトップ（ネックレストップ） 鑑別書

[Sale on 6/22 at 10 PM] Colorful K18 White South Sea Pearl, 0.17ct Diamond, Ruby, Sapphire, Emerald Bird Motif Pendant Top (Necklace Top) with Appraisal Report Sale price¥198,000
タンザニア産グリーンサファイア 0.303ctルース

Tanzanian green sapphire 0.303ct loose stone Sale price¥8,800
マダガスカル産サファイア 0.448ctルース

Madagascar sapphire 0.448ct loose stone Sale price¥15,800
coming soon [22602647 listed] [Colorful] K18 Blue Sapphire Ring

[22602647 listed] [Colorful] K18 Blue Sapphire Ring Sale price¥128,000
ロイヤルブルーサファイア 0.730ctルース

Royal Blue Sapphire 0.730ct Loose AIGS Sale price¥158,000
マダガスカル産ピンクサファイア 0.239ctルース

[Sales on 6/13 at 10 PM] Madagascar Pink Sapphire 0.239ct Loose Stone, Japan-Germany Gemstone Institute certified Sale price¥18,800
マダガスカル産バイカラーサファイア 0.488ctルース

[Sale on June 23 at 10 PM] Madagascar Bicolor Sapphire 4.7mm/0.488ct Loose Stone Sale price¥9,800
マダガスカル産バイカラーサファイア 0.506ctルース

[On sale June 14, 10 PM JST] Madagascar Bi-Color Sapphire 4.5mm/0.506ct Loose Stone Sale price¥7,980
マダガスカル産バイカラーサファイア 0.607ctルース

[On sale June 18th at 10 PM] Madagascar Bi-Color Sapphire 5.1mm/0.607ct Loose Stone Sale price¥14,800
マダガスカル産バイカラーサファイア 0.271ctルース

[On Sale June 18th at 10 PM] Madagascar Bi-Color Sapphire 3.7mm/0.271ct Loose Gemstone Sale price¥6,980
ブルーサファイア 0.369ctルース

[On sale June 13th at 10 PM] Blue Sapphire 0.369ct Loose Stone (with Japan-Germany gemological report) Sale price¥22,800
ティールグリーンサファイア 0.142ctルース

[On sale June 21st at 10 PM] Teal Green Sapphire 3.1mm/0.142ct Loose Stone Sale price¥15,800
スリランカ産スターサファイア 2.093ctルース

Sri Lankan Star Sapphire 2.093ct Loose Sale price¥8,800
スリランカ産スターサファイア 1.339ctルース

Sri Lankan Star Sapphire 1.339ct Loose Sale price¥12,800
スリランカ産スターサファイア 1.682ctルース

Sri Lankan Star Sapphire 1.682ct Loose Sale price¥12,800
スリランカ産スターサファイア 1.225ctルース

Sri Lankan Star Sapphire 1.225ct Loose Sale price¥12,800
Pt900 ブルーサファイア 1.05ct・ダイヤモンド0.05ctリング 鑑別書

[On sale June 20th at 10 PM] Colorful Pt900 Blue Sapphire 1.05ct/Diamond 0.05ct Ring with Appraisal Report Sale price¥98,000
マダガスカル産パパラチアサファイア 0.282ctルース

[On sale June 7th at 10 PM] Madagascar Padparadscha Sapphire 3.9mm/0.282ct Loose Stone, DGL Certified Sale price¥43,800
マダガスカル産パパラチアサファイア 0.336ctルース

[On sale June 7th at 10 PM] Madagascar Padparadscha Sapphire 3.9mm/0.336ct Loose Stone DGL Certified Sale price¥45,800
バイカラーサファイア 1.040ctルース

[On sale June 8th, 10 PM] Bi-Color Sapphire 1.040 ct Loose Gemstone GIT Sale price¥29,800
非加熱ブルーサファイア 2.430ctルース

[On sale June 7, 10 PM] Untreated Blue Sapphire 2.430ct Loose Gemstone GIA Sale price¥258,000
マダガスカル産パパラチアサファイア 0.396ctルース

[On sale June 12, 10 PM JST] Madagascar Padparadscha Sapphire 4.1mm/0.396ct Loose Stone DGL Certified Sale price¥52,800
K18WG クロムトルマリン 0.70ctct・サファイア0.30ctペンダントトップ（ネックレストップ） 鑑別書

[On sale 10 PM on 6/14] [Colorful] K18WG Chrome Tourmaline 0.70ct / Sapphire 0.30ct Pendant Top (Necklace Top) with appraisal Sale price¥79,800
Color change sapphire 0.473ct loose stone (purple sapphire)

Color change sapphire 0.473ct loose stone (purple sapphire) Sale price¥25,800
マダガスカル産グリーンサファイア 0.253ctルース

Madagascar Green Sapphire 0.253ct Loose Sale price¥9,800
マダガスカル産イエローサファイア 0.417ctルース

Madagascar Yellow Sapphire 4.4mm/0.417ct Loose Sale price¥14,800
Madagascar Blue Sapphire 0.302ct Loose

Madagascar Blue Sapphire 0.302ct Loose Sale price¥15,800
Madagascar pink sapphire 0.346ct loose stone

Madagascar pink sapphire 0.346ct loose stone Sale price¥15,800
マダガスカル産ピンクサファイア 0.243ctルース

Madagascar pink sapphire 0.243ct loose stone Sale price¥8,800
Sri Lankan Blue Sapphire 0.519ct Loose

Sri Lankan Blue Sapphire 0.519ct Loose Sale price¥14,800
パパラチアサファイア 0.560ctルース

[On sale May 31st, 10 PM] Madagascar Padparadscha Sapphire 5.0mm/0.560ct Loose Stone AIGS Sale price¥89,800
グリーンランド産サファイア 0.592ctルース

Greenland sapphire 0.592ct loose stone Sale price¥18,800
スターサファイア 6.477ctルース

Sri Lankan Star Sapphire 6.477ct Loose Sale price¥49,800
スターサファイア 7.111ctルース

Sri Lankan Star Sapphire 7.111ct Loose Sale price¥59,800
ベトナム産非加熱シルキーピンクサファイア 0.165ctルース

0.165ct Unheated Silky Pink Sapphire from Vietnam 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
"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 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 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
[On sale May 4th at 10 PM] Limited to 12 Stones - Loose Sri Lankan Star Sapphire (1 Stone) - Multiple Purchase Discount Available

[On sale May 4th at 10 PM] Limited to 12 Stones - Loose Sri Lankan Star Sapphire (1 Stone) - Multiple Purchase Discount Available Sale price¥4,980
[Sale starts May 2nd, 10 PM JST] 《Limited to 9 Stones》Rare Round Cabochon Cut Sri Lankan Star Sapphire (Approx. 5.0mm) 《Multi-item Discount Available》

[Sale starts May 2nd, 10 PM JST] 《Limited to 9 Stones》Rare Round Cabochon Cut Sri Lankan Star Sapphire (Approx. 5.0mm) 《Multi-item Discount Available》 Sale price¥9,800
Limited to 9 sets: Sri Lankan sapphire (3.0-3.5mm, round cut) and Sri Lankan glass body set of 2 stones. Discounts available for multiple purchases.

Limited to 9 sets: Sri Lankan sapphire (3.0-3.5mm, round cut) and Sri Lankan glass body set of 2 stones. Discounts available for multiple purchases. Sale price¥5,980

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.