0.3ct - 0.5ct

【9/6 22時販売】タンザニア産マグネシオアキシナイト 0.380ctルース日独鑑 Sale price¥39,800

【9/6 22時販売】ドミニカ共和国産コンクパール（火焔模様有り） 0.210ctルース（フラミンゴカラー） Sale price¥39,800

[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

[12560281] Brazilian Elestial Amethyst 0.482ct Loose Stone Sale price¥4,980

[On Sale at 10 PM on August 31st] Colombian Mint Emerald 0.214ct Loose Sale price¥8,800

[On sale at 10pm on September 3rd] Zambian emerald 0.159ct loose stone Sale price¥8,800

[12560256] Zambian emerald 0.135ct loose stone Sale price¥8,800

[12560255] Zambian emerald 0.119ct loose stone Sale price¥12,800

[12560321] Brazilian pink tourmaline 0.234ct loose stone Sale price¥8,800

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

[On Sale at 10 PM on August 28th] Brazilian Blue Tourmaline 0.353ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on August 28th] Brazilian Mint Color Tourmaline 0.145ct Loose Stone Sale price¥8,800

[On Sale at 10 PM on September 1st] Brazilian Green Tourmaline 0.194ct Loose Stone Sale price¥12,800

[12560312] Brazilian Green Tourmaline 0.374ct Loose Sale price¥9,800

[On Sale at 10 PM on August 29th] 0.169ct Loose Pink Sapphire from Mozambique Sale price¥6,980

[12560239] Pink sapphire 0.179ct loose stone Sale price¥6,980

[On sale at 10 PM on September 1st] 0.374ct loose blue sapphire from Madagascar Sale price¥9,800

[Published on 12560228] Blue sapphire 0.266ct loose stone Sale price¥8,800

[Published on 12560227] Blue sapphire 0.170ct loose stone Sale price¥8,800

[Published on 12560226] Blue sapphire 0.162ct loose stone Sale price¥9,800

[12557353] 0.245ct loose gemstone from Namibia Sale price¥79,800

[12557257] Russian Demantoid Garnet (Horsetail) 0.100ct Loose Sale price¥14,800

[On Sale at 10 PM on August 30th] Russian Demantoid Garnet (Horsetail) 0.115ct Loose Stone Sale price¥18,800

[12557240] Russian emerald 0.249ct loose stone Sale price¥158,000

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

[12556599] Alexandrite 0.326ct loose stone Sale price¥79,800

[Available at 10 PM on August 24th] Sri Lankan saffron 0.466ct loose stone with certificate of authenticity Sale price¥37,800

[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

[Available at 10 PM on August 28th] Pigeon Blood Ruby 0.280ct Loose Stone AIGS Sale price¥49,800

[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

[12560252] Zambian emerald 0.138ct loose stone Sale price¥8,800

[On sale at 10pm on August 25th] Zambian emerald 0.166ct loose stone Sale price¥8,800

[12560254] Zambian emerald 0.171ct loose stone Sale price¥8,800

[On Sale at 10 PM on August 23rd] Myanmar Red Spinel 0.346ct Loose Sale price¥22,800

[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

[On sale at 10pm on August 19th] Sliced Trapiche Diamond 0.228ct Loose Sale price¥18,800

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

[8/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.300ct Loose Sale price¥15,800

[Available at 10 PM on August 16th] Brazilian Triphyllite (Color Change Type) 0.168ct Loose Stone with Certificate of Authenticity Sale price¥12,800

Sold out

[On Sale at 10 PM on August 16th] Unheated Padparadscha Sapphire 3.9mm/0.290ct Loose GIA

[On Sale at 10 PM on August 11th] Afghanistan Oil-Free Emerald 0.100ct Loose GIA Sale price¥98,000

[Available at 10 PM on August 8th] Pakistani Veirinite 0.177ct Loose Stone with Certificate of Authenticity Sale price¥39,800

[On sale at 10pm on August 25th] Zimbabwean sphene 0.457ct 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.