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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 9/26 at 10 PM] <limited quantity> Hong Kong Sourcing Gacha (7 types including Tanzanite, Hauyne, Color-Change Sapphire, Bekily Blue Garnet, etc.) 1 stone (plus 1 Rainbow Obsidian) <multiple purchase discount available></multiple></limited>

[Available 9/26 at 10 PM] Hong Kong Sourcing Gacha (7 types including Tanzanite, Hauyne, Color-Change Sapphire, Bekily Blue Garnet, etc.) 1 stone (plus 1 Rainbow Obsidian) Sale price¥3,300
東アフリカ産非加熱バイカラーサファイア 0.510ctルース

[Lottery Sale_01][For Winners Only][Item 12564184] East African Unheated Bicolor Sapphire 0.510ct Loose GIA Sale price¥98,000
K18WG スリランカ産ブルーサファイア 1.22ct ダイヤモンド0.14ctリング鑑別書

[9/4 (Lottery Sale_11)] 18K White Gold Sri Lankan Blue Sapphire 1.22ct and Diamond 0.14ct Ring with Appraisal Report Sale price¥128,000
Pt900 スリランカ産パープルサファイア 4.3mm/0.35ctダイヤモンド0.54ctリング鑑別書

[9/14 (Mon) 10:00 AM Deadline: Lottery Sale_12] Pt900 Sri Lankan Purple Sapphire 4.3mm/0.35ct Diamond 0.54ct Ring with Appraisal Report Sale price¥158,000
タンザニア・ウィンザー産非加熱バイカラーサファイア 0.500ctルース

【10/3 10 PM Release】Unheated Bicolor Sapphire from Winza, Tanzania 0.500ct Loose Gemstone with Identification Report Sale price¥59,800
タンザニア・ウィンザー産非加熱バイカラーサファイア 0.460ctルース 鑑別書

[Available 10/2 at 10 PM] Unheated Bicolor Sapphire from Winza, Tanzania, 0.460ct Loose Stone with Gem Identification Report Sale price¥59,800
スリランカ産ピンクサファイア 4.1mm/0.354ctルース 鑑別書

[Available 10/2 at 10 PM] Sri Lankan Pink Sapphire 4.1mm/0.354ct Loose Gemstone with Appraisal Report Sale price¥22,800
マダガスカル産ロイヤルブルーサファイア 4.0mm/0.377ctルース 鑑別書

[Deadline: Mon, 9/14, 10:00 AM: Lottery Sale_07] Madagascar Royal Blue Sapphire 4.0mm/0.377ct Loose Stone with Identification Report Sale price¥69,800
スリランカ産非加熱カラーチェンジサファイア 1.170ctルース

[Deadline: Sat, Sep 5, 10:00 AM: Lottery Sale_09] Sri Lankan Unheated Color-Change Sapphire 1.170ct Loose Stone, GIA certified Sale price¥188,000
スリランカ産非加熱パープルサファイア 0.870ctルース

[Item 12564367] Unheated Sri Lankan Purple Sapphire 0.870ct Loose Stone GIA Sale price¥128,000
ロイヤルブルーサファイア 0.530ctルース AIGS

Royal Blue Sapphire 0.530ct Loose Stone Sale price¥69,800
Pt900 カラーチェンジサファイア0.446ct ダイヤモンド0.12ctリング鑑別書

[On sale 8/31 at 10 PM] [Colori] Pt900 Color-Change Sapphire 0.446ct Diamond 0.12ct Ring with Identification Report Sale price¥79,800
ティールブルーサファイア 0.555ctルース

[Available 10/1 at 10 PM] Australian Teal Blue Sapphire 0.555ct Loose Stone Sale price¥19,800
K18WG ブルーサファイア ダイヤモンド0.051ctペンダントトップ（ネックレストップ）鑑別書

[22602720 listed] [Colorfury] K18WG Blue Sapphire Diamond 0.051ct Pendant Top (Necklace Top) with certificate Sale price¥39,800
Pt900 ロイヤルブルーサファイア 0.84ct リング鑑別書

[On sale 9/25 at 22:00] [Color-free] Pt900 Royal Blue Sapphire 0.84ct Ring with Identification Report Sale price¥148,000
マダガスカル産パパラチアサファイア 0.545ctルース DGL鑑

[#202607 Akihabara Pop-up Store Takeout][Shinjuku Marui Annex 202605 Takeout][12548265 Listed] Padparadscha Sapphire 0.545ct Loose Stone Sale price¥69,800
K18WG マルチカラーサファイア0.83ct・ダイヤモンド0.70ct 3WAYクロスペンダント（ネックレス）鑑別書

[Available 9/25, 10 PM] [Color-free] K18WG Multicolor Sapphire 0.83ct / Diamond 0.70ct 3-Way Cross Pendant (Necklace) with Appraisal Report Sale price¥198,000
Pt900 ティールグリーンサファイア 0.46ct ダイヤモンド0.10ctリング鑑別書

[Available 9/24 10:00 PM] [Colori] Pt900 Teal Green Sapphire 0.46ct Diamond 0.10ct Ring with Appraisal Report Sale price¥89,800
Pt900 エメラルド 5.33ct サファイア4.52ct、ダイヤモンド0.12ctリング 宝貴協

[On sale 9/24 at 22:00] [Colorfully] Pt900 Emerald 5.33ct, Sapphire 4.52ct, Diamond 0.12ct Ring (JGA Certified) Sale price¥198,000
タイ産ブラックスターサファイア 7.437ctルース

【Available 9/18, 10:00 PM】 Thai Black Star Sapphire 7.437ct Loose Gemstone Sale price¥19,800
マダガスカル産パパラチアサファイア 3.6mm/0.281ctルース DGL鑑

【9/20 22:00 Release】 Madagascar Padparadscha Sapphire 3.6mm/0.281ct Loose Stone, DGL Certified Sale price¥35,800
スリランカ産ブルーサファイア 0.754ctルース

[Available 9/21 at 10 PM] Sri Lankan Blue Sapphire 5.3mm/0.754ct Loose Stone Sale price¥12,800
スリランカ産グラスボディ（サファイアクリスタル） 7.983ct原石

Sri Lankan glass body (sapphire crystal) 7.983ct rough stone Sale price¥19,800
スリランカ産グラスボディ（サファイアクリスタル） 9.933ct原石

Sri Lankan glass body (sapphire crystal) 9.933ct rough stone Sale price¥29,800
スリランカ産グラスボディ（サファイアクリスタル） 10.140ct原石

Sri Lankan glass body (sapphire crystal) 10.140ct rough stone Sale price¥22,800
非加熱モンタナサファイア（ヨーゴ産） 0.159ctルース

[#202607 Akihabara Popup Out for Sale] [Lottery Sale 12] [For Winners Only] [12562560 Listed] Unheated Montana Sapphire (Yogo Origin) 0.159ct Loose with Certificate Sale price¥98,000
K18YG タンザニア産アルマンディンガーネット 1.003ct・ピンクサファイアリング

[Available 9/13, 10:00 PM] 18K Yellow Gold Tanzanian Almandine Garnet 1.003ct & Pink Sapphire Ring Sale price¥89,800
Pt900 スリランカ産ブルーサファイア0.465ct ダイヤモンド0.28ctリング鑑別書

[On sale 9/13, 10 PM] Pt900 Sri Lankan Blue Sapphire 0.465ct Diamond 0.28ct Ring with Identification Report Sale price¥118,000
スリランカ産シルキーピンクサファイア 0.544ctルース

[Available Sept. 12, 10:00 PM] Sri Lankan Silky Pink Sapphire 5.0mm/0.544ct Loose Gemstone with Identification Report Sale price¥25,800
ケニア産非加熱ゴールドシーンサファイア 0.314ctルース 鑑別書

[Available 9/12 at 10 PM] Kenyan Unheated Gold Sheen Sapphire 0.314ct Loose Gemstone with Appraisal Report Sale price¥22,800
ケニア産非加熱ゴールドシーンサファイア 0.329ctルース 鑑別書

【On sale 9/12 at 10 PM】 Kenyan unheated gold sheen sapphire 0.329ct loose stone with appraisal report Sale price¥25,800
ケニア産非加熱ゴールドシーンサファイア 0.408ctルース

[Available 9/17 at 10:00 PM] Kenyan Unheated Gold Sheen Sapphire 0.408ct Loose Gemstone with Identification Report Sale price¥25,800
ケニア産非加熱ゴールドシーンサファイア 0.531ctルース

[On sale 9/17 at 22:00] Kenya Unheated Gold Sheen Sapphire 0.531ct Loose Gemstone with Identification Report Sale price¥18,800
ケニア産非加熱ゴールドシーンサファイア 0.166ctルース

[Available 9/17 at 10:00 PM] Kenyan unheated gold sheen sapphire 0.166ct loose stone with appraisal report Sale price¥12,800
K18 マダガスカル産パパラチアサファイア 4.3mm/0.412ct・ダイヤモンド0.57ctリング 中宝鑑

[Lottery Sale 0812_11] K18 Madagascar Padparadscha Sapphire 0.412ct / Diamond 0.57ct Ring Sale price¥168,000
《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
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 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 11 Stones》Rouge Cut & Heart Shaped Gemstone Gacha Usually ¥18,800💎 Almandine Garnet, Pink Tourmaline, Scolite, Sapphire《Multiple Purchase Discount Available》

《Limited to 11 Stones》Rouge Cut & Heart Shaped Gemstone Gacha Usually ¥18,800💎 Almandine Garnet, Pink Tourmaline, Scolite, Sapphire《Multiple Purchase Discount Available》 Sale price¥4,980
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
Limited to 10 stones: Unheated Sapphire (3.5mm, Round Cut) from the Theppanawa Mine, Sri Lanka. Single loose stone. Discounts available for multiple purchases.

Limited to 10 stones: Unheated Sapphire (3.5mm, Round Cut) from the Theppanawa Mine, Sri Lanka. Single loose stone. Discounts available for multiple purchases. Sale price¥4,980
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
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
[Sale 6/] 10:00 PM - Limited 11 Stones - Sri Lankan Pink Sapphire (Emerald Cut) Average 0.73ct (Multiple Purchase Discount Available)

[Sale 6/] 10:00 PM - Limited 11 Stones - Sri Lankan Pink Sapphire (Emerald Cut) Average 0.73ct (Multiple Purchase Discount Available) Sale price¥5,980
Limited to 6 stones: 1 loose unheated Sri Lankan sapphire with silk inclusions (average 0.31 carats) Multiple purchase discounts available

Limited to 6 stones: 1 loose unheated Sri Lankan sapphire with silk inclusions (average 0.31 carats) Multiple purchase discounts available Sale price¥4,980
マダガスカル産サファイア 1.650ctルース GIA

[Lottery Sale 0521_08] Madagascar Sapphire 1.650ct Loose GIA Sale price¥158,000

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.