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September birthstone

September's birthstone is sapphire kunzite .

Although sapphires have a strong impression of blue, they actually come in a variety of colors, including yellow, green, orange, and pink. It belongs to the same mineral corundum as ruby , which has an impressive red color. When we simply call it "sapphire", we are referring to blue sapphire . The next most valuable sapphire after blue sapphire is padparadscha sapphire , which has a color that is a mixture of orange and pink.

Kunzite is a gemstone that is popular among collectors because of its pink to purple color. It is a type of mineral spodumene. It is said that the stronger the purple flavor, the higher the value. Due to its brittle nature, care must be taken when wearing it as jewelry.

Karatz GemMagazine
" List of September birthstones/birthstones "

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【12522867掲載】イエローサファイア 1.110ctルース

Yellow sapphire 1.110ct loose Sale price¥19,800
サファイア 2.273ct原石 - KARATZ STORE｜カラッツSTORE

Sapphire 2.273ct rough stone Sale price¥2,980
Sold out 「起源がわかる 宝石大全」初版＆宝石小瓶 2点セット

[Resale due to popular demand] "Encyclopedia of gemstones that understand the origin" & 2 sapphire stone set (purchased in Chanthaburi, Thailand)

Sold out 【ジェムガチャ】宝石1石（ダイヤモンドH&C中宝ソ,ピンクダイヤモンド3.3mmUP,タンザニア産レッドサファイアなど）1石が当たる！さらに2個以上購入で10月誕生石「ペルー産ブルーオパール＆ブラジル産トルマリン2石セット」が必ず貰える《複数購入割引有》

【ジェムガチャ】宝石1石（ダイヤモンドH&C中宝ソ,ピンクダイヤモンド3.3mmUP,タンザニア産レッドサファイアなど）1石が当たる！さらに2個以上購入で10月誕生石「ペルー産ブルーオパール＆ブラジル産トルマリン2石セット」が必ず貰える《複数購入割引有》
Sold out サファイア原石 色違い2石（UVタイプ・マダガスカル産） - KARATZ STORE｜カラッツSTORE

Sapphire rough 2 stones in different colors (UV type, from Madagascar)《Multiple purchase discount available》

Sold out スター・フラワーカットのベリリウム拡散処理サファイア 1石《9月誕生石》

1 star flower cut beryllium diffused sapphire (September birthstone)

Sold out [Sales End on November 15th] "Bungo to Alchemist" x KARATZ Collaboration Jewelry Bungo Ring [Izumi Kyoka Model] Sky Blue Topaz Yellow Sapphire

[Sales End on November 15th] "Bungo to Alchemist" x KARATZ Collaboration Jewelry Bungo Ring [Izumi Kyoka Model] Sky Blue Topaz Yellow Sapphire

Sold out 《With translation》1 unheated silky pink sapphire from Vietnam (round cut) 《Discount available for multiple purchases》

《With translation》1 unheated silky pink sapphire from Vietnam (round cut) 《Discount available for multiple purchases》

Sold out バンカチャサファイア（ローズカット）1石《チャンタブリ買付品》

Bangkacha sapphire (rose cut) 1 stone (purchased in Chanthaburi)

Sold out バイカラーサファイア（プリンセスカット）1石 - KARATZ STORE｜カラッツSTORE

Bicolor sapphire (princess cut) 1 stone (discount available for multiple purchases)

Sold out {3/31 Reception closes} "PSYCHO-PASS" x KARATZ collaboration jewelry: Public Safety Bureau Criminal Investigation Division Device Image Ring, Enforcer Design [Rokuitsuka Yayoi Model] {Ice Blue Sapphire}

{3/31 Reception closes} "PSYCHO-PASS" x KARATZ collaboration jewelry: Public Safety Bureau Criminal Investigation Division Device Image Ring, Enforcer Design [Rokuitsuka Yayoi Model] {Ice Blue Sapphire}

Sold out 1 unheated silky pink sapphire from Vietnam (round cut)《Discount available for multiple purchases》

1 unheated silky pink sapphire from Vietnam (round cut)《Discount available for multiple purchases》

Sold out グリーンランド産アイスルビー 1石（ハートシェイプ,4mm,ピンクサファイア）《複数購入割引有》

Greenland Ice Ruby 1 stone (heart shape, 4mm, pink sapphire) {Multiple purchase discount available}

Sold out サファイア原石 1石（ブルー系） - KARATZ STORE｜カラッツSTORE

1 rough sapphire stone (blue)

Sold out ミャンマー・モゴック産非加熱ピンクサファイア結晶1石（原石）

1 unheated pink sapphire crystal from Mogok, Myanmar (raw stone)《Multiple purchase discounts available》

Sold out Limited to 12 stones: 1 bicolor sapphire (slice) from Windsor, Tanzania. Discounts available for multiple purchases.

Limited to 12 stones: 1 bicolor sapphire (slice) from Windsor, Tanzania. Discounts available for multiple purchases.
Sold out Gem Gacha 💎 Bicolor Sapphire 💎

Gem Gacha 💎 Bicolor Sapphire 💎

Sold out Bi-color sapphire from Tanzania 1 stone loose《Discount available for multiple purchases》

Bi-color sapphire from Tanzania 1 stone loose《Discount available for multiple purchases》

Sold out Limited to 13 stones! Sapphire Gacha! 1 loose unheated Sri Lankan sapphire stone. Multiple purchase discounts available.

Limited to 13 stones! Sapphire Gacha! 1 loose unheated Sri Lankan sapphire stone. Multiple purchase discounts available.
Sold out Pink Sapphire Gacha💎 (1 Padparadscha Sapphire 0.322ct with DGL Certificate) 1 Loose Stone {Multiple Purchase Discounts Available}

Pink Sapphire Gacha💎 (1 Padparadscha Sapphire 0.322ct with DGL Certificate) 1 Loose Stone {Multiple Purchase Discounts Available}
Sold out 1 stone loose unheated silky pink sapphire from Vietnam《Discount available for multiple purchases》

1 stone loose unheated silky pink sapphire from Vietnam《Discount available for multiple purchases》
Sold out ウンバサファイア（タンザニア産）1石ルース《複数購入割引有》

Umba sapphire (from Tanzania) 1 stone loose《Discount available for multiple purchases》

Sold out タンザニア・ウィンザー産バイカラーサファイア1石ルース（オーバルカット）《複数購入割引有》

1 bicolor sapphire from Windsor, Tanzania, loose (oval cut)《Discount available for multiple purchases》

Sold out カラーチェンジサファイア 1石 - KARATZ STORE｜カラッツSTORE

Color change sapphire 1 stone

Sold out モンタナサファイア1石ルース（約4×3mm,ペアシェイプ）《複数購入割引有》

[Limited to 26 stones] 1 loose Montana sapphire stone (approx. 4 x 3 mm, pear shape) [Discount available for multiple purchases]
Sold out Ice blue sapphire & pink sapphire 2 stone set from Ratnapura, Sri Lanka (2.5mm, princess cut)《Multiple purchase discount available》

Ice blue sapphire & pink sapphire 2 stone set from Ratnapura, Sri Lanka (2.5mm, princess cut)《Multiple purchase discount available》

Sold out Gem Gacha💎Sapphire from Ratnapura, Sri Lanka (4.5mm-6.0mm, round cut)《Multiple purchase discounts available》

Gem Gacha💎Sapphire from Ratnapura, Sri Lanka (4.5mm-6.0mm, round cut)《Multiple purchase discounts available》

Sold out スリランカ産バイカラーサファイア1石 （カボションカット）

1 bicolor sapphire from Sri Lanka (cabochon cut)《Discount available for multiple purchases》

Sold out [On sale from 10pm on November 3rd] {Limited to 4 stones} Blue sapphire from Madagascar (royal blue color, oval cut) {Multiple purchase discounts available}

[On sale from 10pm on November 3rd] {Limited to 4 stones} Blue sapphire from Madagascar (royal blue color, oval cut) {Multiple purchase discounts available}
Sold out [Limited to 6 stones] Sapphire Gacha💎 Tanzanian bicolor sapphire (including crescent sapphire, 3-4mm) [Multiple purchase discount available]

[Limited to 6 stones] Sapphire Gacha💎 Tanzanian bicolor sapphire (including crescent sapphire, 3-4mm) [Multiple purchase discount available]
Sold out Sapphire Gacha💎 Montana sapphire 1 loose stone (green-blue, 3×4mm) {Multiple purchase discounts available}

Sapphire Gacha💎 Montana sapphire 1 loose stone (green-blue, 3×4mm) {Multiple purchase discounts available}
Sold out 《限定10石》サファイア1石ルース（ヘキサゴナルカット,3mm）《複数購入割引有》

Hexagonal cut sapphire, 1 loose stone (3mm) {Multiple purchase discounts available}
Sold out 1 bicolor sapphire (cabochon cut)《Multiple purchase discount》

1 bicolor sapphire (cabochon cut)《Multiple purchase discount》

Sold out Set of 2 stones: 1 YAG (yttrium aluminum garnet) stone (canary yellow, emerald cut) + 1 yellow sapphire rough stone (discount available for multiple purchases)

Set of 2 stones: 1 YAG (yttrium aluminum garnet) stone (canary yellow, emerald cut) + 1 yellow sapphire rough stone (discount available for multiple purchases)
Sold out 1 bicolor sapphire from Windsor, Tanzania, loose (round cut)《Discount available for multiple purchases》

1 bicolor sapphire from Windsor, Tanzania, loose (round cut)《Discount available for multiple purchases》

Sold out Pink Sapphire Gacha💎 (1 Padparadscha Sapphire 0.215ct with DGL Certificate) 1 Loose Stone {Multiple Purchase Discounts Available}

Pink Sapphire Gacha💎 (1 Padparadscha Sapphire 0.215ct with DGL Certificate) 1 Loose Stone {Multiple Purchase Discounts Available}
Sold out 1 Tanzania Windsor Sapphire (Multiple purchase discounts available)

1 Tanzania Windsor Sapphire (Multiple purchase discounts available)
Sold out 1 loose bicolor sapphire from Windsor, Tanzania (marquise cut, 4.5 x 2.5 mm)《Discount available for multiple purchases》

1 loose bicolor sapphire from Windsor, Tanzania (marquise cut, 4.5 x 2.5 mm)《Discount available for multiple purchases》
Sold out 【12528364掲載】バイカラーサファイア 0.360ctルース

Bicolor sapphire 0.360ct loose

Sold out Sapphire Gacha💎 Sri Lankan Sapphire (Hexagonal Cut) 1 Loose Stone {Multiple Purchase Discounts Available}

Sapphire Gacha💎 Sri Lankan Sapphire (Hexagonal Cut) 1 Loose Stone {Multiple Purchase Discounts Available}
Sold out Sapphire Gacha💎 Sri Lankan Blue Sapphire (Hexagonal Cut) 1 Loose Stone {Multiple Purchase Discounts Available}

Sapphire Gacha💎 Sri Lankan Blue Sapphire (Hexagonal Cut) 1 Loose Stone {Multiple Purchase Discounts Available}
Sold out Bankacha sapphire 1 stone loose (black star sapphire)《Multiple purchase discount available》

Bankacha sapphire 1 stone loose (black star sapphire)《Multiple purchase discount available》
Sold out 1 bicolor sapphire (cabochon cut)《Multiple purchase discount》

1 bicolor sapphire (cabochon cut)《Multiple purchase discount》
Sold out 《訳あり》サンジェ氏カット（ウォーターメロントルマリン・イエローサファイア・オレゴンサンストーンなど）

Limited to 9 stones, with a flaw, Sanjay cut (watermelon tourmaline, yellow sapphire, Oregon sunstone, etc.), multiple purchase discounts available
Sold out 《限定5石》《訳あり》サファイア1石ルース（ロゼンジカット）《複数購入割引有》

《Limited 5 stones》《Explanation》1 sapphire stone loose (lozenge cut)《Multiple purchase discount available》
Sold out 非加熱パパラチアサファイア 0.330ctルース AIGS

Unheated Padparadscha Sapphire 0.330ct Loose GIA

Sold out イエローサファイア 2.089ctルース 中宝

Yellow sapphire 2.089ct loose medium treasure

Sold out スリランカ産スターサファイア 0.982ctルース

Sri Lankan star sapphire 0.982ct loose

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.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.

KARATZ・Five Commitments