Round Cut

タンザニア産アンデシン・ラブラドライト（通称名ブルームーンストーン） 0.726ctルース

【9/9 22時販売】【ダンデライオンカット】タンザニア産アンデシン・ラブラドライト（通称名ブルームーンストーン） 6.0mm/0.726ctルース Sale price¥49,800

coming soon

【9/16 22時販売】ブラジル産インディゴライトトルマリン 4.0mm/0.240ctルース鑑別書 Sale price¥29,800

フローレスダイヤモンド（H&C） 0.266ctルース(D, FL, 3Excellent H&C)

【9/6 22時販売】フローレスダイヤモンド（H&C） 4.0mm/0.266ctルース(D, FL, 3Excellent H&C) GIA＆中宝鑑 Sale price¥188,000

【9/6 22時販売】ピジョンブラッドルビー 5.2mm/0.930ctルース AIGS Sale price¥198,000

[On Sale at 10 PM on August 31st] Paraiba Tourmaline from Mozambique, 3.5mm/0.172ct Loose Stone Sale price¥15,800

[On Sale at 10 PM on September 3rd] Paraiba Tourmaline from Mozambique, 3.2mm/0.119ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on August 28th] Congo Pink Tourmaline 6.0mm/0.825ct Loose Stone Sale price¥29,800

[12560318] Congo pink tourmaline 0.798ct loose stone Sale price¥25,800

[On Sale at 10 PM on September 1st] Congo Pink Tourmaline 5.0mm/0.463ct Loose Stone Sale price¥24,800

[12560272] Brazilian Elestial Amethyst 1.461ct Loose Sale price¥9,800

[On Sale at 10 PM on September 3rd] Madagascar Blue Sapphire 4.7mm/0.522ct Loose Sale price¥8,800

[12557239] Russian emerald 0.269ct loose stone Sale price¥79,800

[Available at 10 PM on August 28th] Padparadscha Sapphire 3.5mm/0.220ct Loose Stone DGL Sale price¥34,800

[Available at 10 PM on August 29th] Cornflower Blue Sapphire 4.5mm/0.490ct Loose Stone AIGS Sale price¥98,000

[12560244] Bicolor Zoisite 0.508ct Loose Stone Sale price¥7,980

[Available at 10 PM on August 24th] Colombian Mint Emerald 4.1mm/0.244ct Loose Stone Sale price¥8,800

[Available at 10 PM on August 24th] Colombian Mint Emerald 4.3mm/0.306ct Loose Stone Sale price¥8,800

[Available at 10 PM on August 24th] Brazilian Mint-Colored Emerald, 5.5mm/0.638ct Loose Sale price¥8,800

[On Sale at 10 PM on August 23rd] Padparadscha Sapphire 3.4mm/0.200ct Loose DGL Sale price¥29,800

[Available at 10 PM on August 24th] Myanmar Leuco Garnet 4.0mm/0.371ct Loose Stone Sale price¥39,800

[12557722] Padparadscha sapphire 0.228ct loose stone Sale price¥35,800

[Available at 10 PM on August 16th] Tanzanian Purple Zoisite 4.0mm/0.262ct Loose Stone with Certificate of Authenticity Sale price¥11,000

ダイヤモンド（H&C） 3.8mm/0.208ctルース(G, IF, 3Excellent H&C)

[Available from 10 PM on August 11th] 3.8mm/0.208ct Internally Flawless Diamond (H&C) Loose Stone (G, IF, 3 Excellent H&C) Sale price¥69,800

[Sale at 10 PM on August 11th] [Sakura In-Cut] Spanish Andalusite 6.0mm/0.715ct Loose Stone Sale price¥59,800

[On Sale at 10 PM on August 9th] Zimbabwean Sphene 4.1mm/0.294ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on August 9th] Zimbabwean Sphene 4.0mm/0.287ct Loose Stone Sale price¥6,980

[Available at 10 PM on August 9th] Zimbabwean Sphene 4.0mm/0.276ct Loose Stone Sale price¥6,980

[12560176] Mexican Fire Opal (Faceted) 0.447ct Loose Sale price¥12,800

マダガスカル産アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.416ctルース

[Available at 10 PM on August 22nd] Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 5.1mm/0.416ct Loose Stone Sale price¥15,800

[Available at 10 PM on August 22nd] Indian Moonstone 6.2mm/0.810ct Loose Sale price¥8,800

[Available at 10 PM on August 22nd] Indian Moonstone 6.2mm/0.775ct Loose Sale price¥7,980

[On sale from 10pm on August 7th] Kunzite from Afghanistan 3.108ct loose stone Sale price¥15,800

[On Sale at 10pm on August 10th] Australian Prehnite 5.5mm/0.538ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on August 12th] Zimbabwean Sphene 4.5mm/0.398ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on August 17th] Tanzanian Rhodolite Garnet 4.5mm/0.394ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on August 9th] Tanzanian Rhodolite Garnet 0.380ct Loose Stone Sale price¥5,980

[On Sale at 10 PM on August 9th] Tanzanian Rhodolite Garnet 0.370ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on August 9th] Tanzanian Rhodolite Garnet 0.336ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on August 9th] American Peridot 5.1mm/0.566ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on August 9th] American Peridot 4.9mm/0.488ct Loose Stone Sale price¥8,800

[On Sale at 10 PM on August 17th] American Peridot 4.5mm/0.370ct Loose Stone Sale price¥8,800

Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.708ct Loose Stone Sale price¥15,800

Tanzanian Rhodolite Garnet 4.8mm/0.579ct Loose Stone, Japan-Germany Exchange Sale price¥12,800

Brazilian Paraiba Tourmaline in Quartz 6mm/0.684ct Loose Stone Sale price¥15,800

Mexican Hyalite Opal 6.0mm/0.708ct Loose Sale price¥25,800

German Awinite 3.5mm/0.158ct loose stone Sale price¥98,000

イエローベリル 2.227ctルース【さくらインカット】ブラジル産イエローベリル 9.1mm/2.227ctルース

[7/4 22:00 Sale] [Sakura Incut] Brazilian Yellow Beryl 9.1mm/2.227ct Loose Sale price¥29,800

Myanmar Red Spinel 3.5mm/0.182ct Loose Stone Sale price¥8,800

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.