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Amethyst (Amethyst)

Amethyst is the birthstone for February. It is the name for purple quartz, and its Japanese name is "Murasaki Suisho." It is said to have been named after the Greek word "amethystos," which means not to get drunk, and it also appears in Roman mythology. It is often cut in a special way, making it a fun gem to collect in various cuts.

Carats Gem Magazine
" Amethyst (Amethyst) "

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ブラジル産ローズアメジスト 0.793ctルース

[11/14 22:00 Sale] Brazilian Rose Amethyst 0.793ct Loose Stone Sale price¥15,800
ブラジル産エレスチャルアメジスト 1.378ctルース

[11/1 22:00 Sale] Brazilian Elestial Amethyst 1.378ct Loose Stone Sale price¥12,800
ブラジル産エレスチャルアメジスト 0.970ctルース

[11/1 22:00 Sale] Brazilian Elestial Amethyst 0.970ct Loose Stone Sale price¥7,980
ブラジル産ブラジル産エレスチャルアメジスト 1.586ctルース

[11/1 22:00 Sale] Brazilian Elestial Amethyst 1.586ct Loose Stone Sale price¥8,800
ブラジル産カシャライアメジスト 0.460ctルース

Brazilian Kasharai Amethyst 5.6mm/0.460ct Loose Stone Sale price¥8,800
アメジスト 0.314ctルース

[On Sale 11/24 10pm] Brazilian Kasharai Amethyst 0.314ct Loose Stone Sale price¥9,800
[On Sale at 10 PM on November 24th] Brazilian Kasharai Amethyst 5.6mm/0.531ct Loose Stone

[On Sale at 10 PM on November 24th] Brazilian Kasharai Amethyst 5.6mm/0.531ct Loose Stone Sale price¥12,800
【サンジェ氏】ゲーサイトインアメジスト 0.806ctルース

Goethite in Amethyst 0.806ct loose stone Sale price¥4,980
ブラジル産アメジスト 5.883ctルース

Brazilian Amethyst 5.883ct Loose Stone Sale price¥9,800
カラーシフトアメジスト 0.849ctルース

Brazilian Color-Shifting Amethyst 0.849ct Loose Stone Sale price¥8,800
Limited to 10 stones: One Saint-Jay cut amethyst (5.0-5.5mm, special cut round) loose stone. Discounts available for multiple purchases.

Limited to 10 stones: One Saint-Jay cut amethyst (5.0-5.5mm, special cut round) loose stone. Discounts available for multiple purchases. Sale price¥3,980
ブラジル産エレスチャルアメジスト 0.809ctルース

Brazilian Elestial Amethyst 0.809ct Loose Stone Sale price¥6,980
ブラジル産エレスチャルアメジスト 0.673ctルース

Brazilian Elestial Amethyst 0.673ct Loose Stone Sale price¥9,800
ブラジル産エレスチャルアメジスト 0.482ctルース

Brazilian Elestial Amethyst 0.482ct Loose Stone Sale price¥4,980
ブラジル産エレスチャルアメジスト 0.850ctルース

Brazilian Elestial Amethyst 0.850ct Loose Stone Sale price¥8,800
ブラジル産エレスチャルアメジスト 1.008ctルース

Brazilian Elestial Amethyst 1.008ct Loose Stone Sale price¥8,800
ブラジル産エレスチャルアメジスト 0.724ctルース

Brazilian Elestial Amethyst 0.724ct Loose Stone Sale price¥6,980
ブラジル産エレスチャルアメジスト 3.093ctルース

Brazilian Elestial Amethyst 3.093ct Loose Stone Sale price¥19,800
ブラジル産エレスチャルアメジスト 2.353ctルース

Brazilian Elestial Amethyst 2.353ct Loose Stone Sale price¥15,800
ブラジル産エレスチャルアメジスト 1.461ctルース

Brazilian Elestial Amethyst 7.6mm/1.461ct Loose Stone Sale price¥9,800
カシャライアメジスト 0.430ctルース

Kasharai Amethyst 0.430ct Loose Sale price¥12,800
Limited to 3 stones: Brazilian Trapiche Amethyst (with mother rock) 1 loose stone (average 33ct, February birthstone) Multiple purchase discounts available

Limited to 3 stones: Brazilian Trapiche Amethyst (with mother rock) 1 loose stone (average 33ct, February birthstone) Multiple purchase discounts available Sale price¥3,980
ホーランダイトインアメジスト 3.048ctルース

Hollandite in Amethyst 3.048ct loose stone Sale price¥9,800
ホーランダイトインアメジスト 4.019ctルース

Hollandite in Amethyst 4.019ct loose stone Sale price¥15,800
Myanmar spinel and Brazilian amethyst 7 stone set ring (Alterno setting)

Myanmar spinel and Brazilian amethyst 7 stone set ring (Alterno setting) Sale price¥79,800
カラーシフトアメジスト 4.191ルース

Color shift amethyst 4.191ct loose stone Sale price¥14,800
カラーシフトアメジスト 1.216ルース

Color shift amethyst 1.216ct loose stone Sale price¥8,800
【甲州貴石切子plusthree】アメジスト 4.306ctルース ワッペン

[Koshu Precious Stones plusthree] Amethyst 4.306ct Loose Stone Patch Sale price¥25,800
【12547827掲載】ブラジル産トラピッチェアメジスト 10.855ctルース

Brazilian Trapiche Amethyst 10.855ct loose stone Sale price¥6,980
【KEN氏】ブラジル産アメジスト 5mm/0.390ctルース（セミオーダーメイドセット）

[Staff Selection] [Mr. KEN] Brazilian Amethyst 5mm/0.390ct Loose Stone (Semi-Custom Made Set) Sale price¥47,800
【金平糖カット】カラーシフトアメジスト 3.499ctルース

[Confetti Cut] Color Shift Amethyst 3.499ct Loose Stone Sale price¥22,800
Hot pink spinel, rose quartz, Santa Maria aquamarine, and amethyst 13-stone half eternity ring set (2.0mm)

Hot pink spinel, rose quartz, Santa Maria aquamarine, and amethyst 13-stone half eternity ring set (2.0mm) Sale price¥69,800
Brazilian Amethyst 9.749ct Loose Stone

Brazilian Amethyst 9.749ct Loose Stone Sale price¥15,800
Amethyst 9.860ct loose stone

Amethyst 9.860ct loose stone Sale price¥18,800
アメジスト 4.249ct原石

Amethyst 4.249ct rough stone Sale price¥9,800
ピンクアメジスト 3.275ctルース

Pink amethyst 3.275ct loose stone Sale price¥9,800
ブラジル産ロマネサイトインアメジスト 7.083ctルース

Brazilian Romanesite in Amethyst 7.083ct Loose Stone Sale price¥18,800
アメジスト 3.496ctルース

Pink amethyst 3.496ct loose Sale price¥6,980
【カメリアカット】カラーシフトアメジスト 20mm/26.815ct《コラボ》ルース ワッペン付

[Camellia cut] Color shift amethyst 20mm/26.815ct 《Collaboration》 Loose with emblem Sale price¥69,800
ザンビア産アメジスト 39.112ct原石

Amethyst 39.112ct raw stone from Zambia Sale price¥8,800
アメジスト 3.090ctルース

Amethyst 3.090ct loose Sale price¥6,980
ブラジル産トラピッチェアメジスト 24.772ctルース

Brazilian Trapichea Amethyst 24.772ct loose with patch Sale price¥8,800
アメジスト 8.044ctルース

Amethyst 8.044ct loose Sale price¥6,980
"PSYCHO-PASS" x KARATZ collaboration jewelry: Shogo Makishima razor design ring (amethyst)

"PSYCHO-PASS" x KARATZ collaboration jewelry: Shogo Makishima razor design ring (amethyst) Sale priceFrom ¥25,800
アメジスト・シトリン 4mm（エピコットカット） 2石セット

Amethyst/Citrine 4mm (Epicot cut) 2 stone set《Multiple purchase discount available》 Sale price¥1,980
ピンクアメジスト1石（チェッカーボードカット,約10ct,14×14mm）

1 stone pink amethyst (checkerboard cut, approx. 10ct, 14 x 14mm)《Discount available for multiple purchases》 Sale price¥4,980
[Jeweler's Tools] Digital Caliper Color Shift Amethyst 2 Piece Set

[Jeweler's Tools] Digital Caliper Color Shift Amethyst 2 Piece Set Sale price¥2,980
Sold out ブラジル産エレスチャルアメジスト 1.891ctルース

[11/1 22:00 Sale] Brazilian Elestial Amethyst 1.891ct Loose Stone

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.