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[On Sale 10/10 at 10 PM] Tanzanian Sunstone (Illusion Sunstone) 0.627ct Loose Stone Sale price¥9,800

[10/10 22:00 Sale] Mexican Cantera Opal 1.120ct Loose Sale price¥8,800

[10/10 22:00 Sale] Brazilian Dalmatian Quartz 9.2mm/1.711ct Loose Stone Sale price¥9,800

[10/10 22:00 Sale] Australian Opal 0.374ct Loose Sale price¥6,980

[10/10 22:00 Sale] Tanzanian Purple Sapphire 0.355ct Loose Sale price¥9,800

[10/10 22:00 Sale] Brazilian Petalite 1.197ct Loose Stone Sale price¥7,980

[10/10 22:00 Sale] Brazilian Petalite 0.725ct Loose Stone Sale price¥4,980

[10/10 22:00 Sale] Cambodian Colorless Zircon 0.905ct Loose Sale price¥9,800

[10/10 22:00 Sale] Cambodian Colorless Zircon 0.630ct Loose Sale price¥8,800

Sold out

[10/11 22:00 Sale] Afghanistan Kunzite 3.340ct Loose Stone

[10/10 22:00 Sale] Indian Moonstone 9.3mm/2.693ct Loose Sale price¥9,800

[10/11 22:00 Sale] Indian Moonstone 1.046ct Loose Sale price¥9,800

[10/11 22:00 Sale] Mexican Cantera Opal 14.690ct Loose Sale price¥12,800

[10/10 22:00 Sale] [Rouge Cut] Brazilian Dumortierite in Quartz 1.184ct Loose Stone Sale price¥14,800

[10/10 22:00 Sale] [Rouge Cut] Brazilian Dumortierite in Quartz 1.493ct Loose Stone Sale price¥9,800

[On Sale 10/10 at 10 PM] [Rouge Cut] Tanzanian Andesine Labradorite (also known as Rainbow Moonstone) 1.082ct Loose Stone Sale price¥15,800

[On Sale at 10pm on 10/7] 1.728ct Loose Aquamarine from Vietnam Sale price¥18,800

[On sale from 10/7 at 10pm] Zimbabwean sphene 0.987ct loose stone Sale price¥19,800

[On sale from 10/7 at 10pm] Zimbabwean sphene 0.978ct loose stone Sale price¥18,800

[On sale from 10/10 at 10pm] Illusion Tourmaline (Iridescent Tourmaline) 0.622ct Loose Stone Sale price¥19,800

[10/10 22:00 Sale] Brazilian Rubellite 4.078ct Loose Stone Sale price¥98,000

[10/10 22:00 Sale] Mozambique Almandine Garnet 2.959ct Loose Stone Sale price¥19,800

[10/10 22:00 Sale] Mozambique Almandine Garnet 1.652ct Loose Stone Sale price¥15,800

[10/10 22:00 Sale] Mozambique Almandine Garnet 7.7mm/1.781ct Loose Stone Sale price¥18,800

[On sale from 10/11 at 10 PM] 18K Yellow Gold Myanmar Jadeite and Emerald 0.434ct Ring Sale price¥79,800

インターナリーダイヤモンド 0.25ルース(E, IF, 3Excellent) GIA

[On Sale at 10 PM on October 11th] Internal Diamond 4.1mm/0.250ct Loose (F, IF, 3 Excellent) GIA Sale price¥69,800

[On Sale 10/11 at 10 PM] Brazilian Paraiba Tourmaline 0.170ct Loose Stone (CuO: 2.1%, MnO: 1.1%) Sale price¥198,000

[12535099] Tanzanian Spessartine Garnet 0.209ct Loose Stone Sale price¥4,980

【10/13 22時販売】モザンビーク産パライバトルマリン 1.309ctルース（酸化鉄インクルージョン含む） Sale price¥98,000

[12560900] Russian Alexandrite 0.088ct Loose Stone Sale price¥59,800

[12560899] Russian Alexandrite 0.058ct Loose Stone Sale price¥49,800

【10/13 22時販売】アメリカ産ベニトアイト 0.175ctルース Sale price¥128,000

【10/13 22時販売】アメリカ産ベニトアイト 0.185ctルース Sale price¥128,000

【10/13 22時販売】K18YGマダガスカル産スフェーン 0.597ct ペンダントトップ（ネックレストップ） Sale price¥39,800

【10/13 22時販売】《限定8石》ブラジル産デンドリティッククォーツの子猫カット1石ルース（初心者向け）（5mm）《複数購入割引有》 Sale price¥3,980

【10/13 22時販売】《限定10石》カラーチェンジガチャ💎ミャンマー産カラーチェンジジルコン、カラーシフトサファイア、2.2ctのカラーチェンジガーネットなど《複数購入割引有》 Sale price¥6,980

【10/13 22時販売】パキスタン産ヴェイリネナイト 0.147ctルース鑑別書 Sale price¥36,800

【10/13 22時販売】ブラジル産アレキサンドライト 0.097ctルース（エメラルドカット） Sale price¥38,800

K18PGカナリーイエローダイヤモンド（トリートメント）0.214ct・アレキサンドライトリング中宝付

【10/13 22時販売】K18PG カナリーイエローダイヤモンド（トリートメント） 0.214ct（SI-1,FANCY INTENSE GREENISH YELLOW）・アレキサンドライトリング Sale price¥128,000

【10/13 22時販売】ファンシーインテンスパープルピンクダイヤモンド 0.021ctルース(FANCY INTENSE PURPLE PINK, SI2) Sale price¥39,800

【10/13 22時販売】Pt900アイスブルーダイヤモンド0.333ct 0.333ct・アコヤパール8.0mmピアス Sale price¥98,000

[Posted 12548489] Cornell pin from Tanzania 0.286ct loose Sale price¥19,800

Zimbabwean Blue Apatite (UV type) 1.189ct loose stone Sale price¥12,800

[12548587 published] Star sapphire from Sri Lanka 1.325ct loose Sale price¥5,980

[Posted 12548486] Cornerpine from Tanzania 0.312ct loose Sale price¥25,800

[12552640] Unheated Brazilian Paraiba Tourmaline 0.073ct loose stone Sale price¥69,800

[12552618] Unheated Brazilian Paraiba Tourmaline 0.063ct loose stone Sale price¥65,800

[12551692] Colombian Trapiche Emerald 0.538ct Rough Stone Sale price¥22,800

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.