0.3ct - 0.5ct

【2/11 22時販売】ダイヤモンド原石（メイカブル） 0.353ct原石 Sale price¥14,800

【2/11 22時販売】ダイヤモンド原石（メイカブル） 0.279ct原石 Sale price¥9,800

【2/11 22時販売】ダイヤモンド原石（メイカブル） 0.284ct原石 Sale price¥12,800

【2/8 22時販売】カナダ産グリーンダイヤモンド原石（ソーヤブル） 0.338ct原石（トライゴン有り）　 Sale price¥128,000

[On Sale 2/1 at 10 PM] Mexican Fire Opal 0.218ct Loose (Faceted) Sale price¥18,800

[On Sale 2/1 at 10pm] Brazilian Alexandrite 0.193ct Loose Stone Sale price¥98,000

[On Sale 2/1 at 10pm] Colombian Emerald 0.451ct Loose Sale price¥39,800

[On Sale 2/1 at 10pm] Mexican Fire Opal 0.281ct Loose Sale price¥15,800

[12561844] Colombian cat's eye emerald 0.417ct loose Sale price¥39,800

[On Sale at 10 PM on February 5th] Tanzanite from Tanzania, 4.5mm/0.390ct Loose Stone, AIGS Sale price¥18,800

[12561273] Tanzanian Kornerupine 0.336ct Loose Stone Sale price¥22,800

[On Sale 2/4 at 10pm] Tibetan Andesine 0.348ct Loose Stone Sale price¥12,800

[On Sale 2/4 at 10pm] Indian Parrot Chrysoberyl 4.5mm/0.375ct Loose Stone Sale price¥15,800

[On Sale 2/4 at 10pm] Indian Parrot Chrysoberyl 4.2mm/0.347ct Loose Stone Sale price¥12,800

[12561175] Mexican Opal (Faceted) 0.208ct Loose Sale price¥9,800

[On sale at 10pm on 2/4] Ruby 3.3mm/0.171ct Loose Sale price¥39,800

[On Sale 2/4 at 10pm] Mexican Fire Opal 0.362ct Loose Sale price¥15,800

[On Sale 2/4 at 10pm] Mozambique Pink Spinel 0.227ct Loose Sale price¥12,800

Colombian emerald 0.243ct loose stone Sale price¥69,800

[On Sale 2/3 at 10pm] Colombian Emerald 0.159ct Loose Sale price¥47,800

Bicolor Grossular Garnet 0.316ct Loose Stone Sale price¥22,800

Paraiba tourmaline from Brazil 0.162ct loose Sale price¥69,800

American red beryl 0.111ct loose stone Sale price¥29,800

Oregon Sunstone from the United States, 0.498ct loose stone Sale price¥15,800

Grandidierite from Madagascar 0.269ct loose stone Sale price¥79,800

Unheated Pigeon Blood Ruby 0.310ct Loose Sale price¥55,800

Tanzanite 0.311ct loose stone from Tanzania Sale price¥12,800

[12560411] Brazilian Imperial Topaz 0.353ct Loose Stone Sale price¥12,800

[12560006] Myanmar Ice Jadeite 0.408ct Loose Stone Sale price¥9,800

[12559880] Kenyan Tsavorite 0.347ct Loose Stone Sale price¥29,800

[12559879] Tibetan Andesine 0.320ct Loose Stone Sale price¥9,800

Tanzanian Lavender Tanzanite 0.391ct Loose Stone Sale price¥12,800

Pigeon blood ruby 0.310ct loose Sale price¥98,000

Pigeon Blood Ruby 0.230ct Loose Sale price¥69,800

[12559523] Tanzanite from Tanzania 0.417ct loose stone Sale price¥12,800

Johachidolite from Myanmar 0.332ct loose Sale price¥29,800

[On sale at 10pm on January 29th] 0.258ct loose ruby Sale price¥12,800

[On Sale at 10 PM on January 28th] Colombian Emerald Cat's Eye 0.238ct Loose Sale price¥29,800

[On Sale at 10 PM on January 24th] Mali Garnet (Grossular/Andradite Garnet) 0.359ct Loose Stone from the Republic of Mali Sale price¥8,800

[On Sale at 10 PM on January 24th] Mali Garnet (Grossular/Andradite Garnet) 0.353ct Loose Stone from the Republic of Mali Sale price¥8,800

[On Sale at 10 PM on January 24th] Tanzanian Green Zoisite 0.354ct Loose Stone Sale price¥12,800

[On Sale at 10 PM on January 24th] Tanzanian Green Zoisite 0.262ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on January 29th] Madagascar Purple Sapphire 4.2mm/0.418ct Loose Sale price¥19,800

[On Sale at 10 PM on January 27th] 0.291ct Unheated Silky Pink Sapphire from Vietnam Sale price¥12,800

[On Sale at 10 PM on January 23rd] Unheated Silky Pink Sapphire from Vietnam, 0.168ct Loose Sale price¥9,800

[On Sale at 10 PM on January 25th] Tanzanian Mandarin Garnet 0.315ct Loose Sale price¥15,800

[On Sale at 10 PM on January 29th] Mexican Water Opal 4.8mm/0.289ct Loose Sale price¥18,800

[On Sale at 10 PM on January 27th] Sri Lankan Green Zircon 0.312ct Loose Sale price¥9,800

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.