0.3ct - 0.5ct

【3/19 22時販売】コロンビア産ノンオイルエメラルド 0.120ctルース GIA Sale price¥158,000

[12562540] Australian black opal 0.336ct loose Sale price¥19,800

[12562534] Australian black opal 0.387ct loose Sale price¥18,800

Zambian Canary Yellow Tourmaline 0.158ct Loose Stone Sale price¥9,800

[12562399] Pink tourmaline 0.440ct loose stone Sale price¥9,800

[12562120] Tanzanian UV Mint Garnet 0.440ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on March 7th] Synthetic Alexandrite 4.3mm/0.430ct Loose Stone Sale price¥12,800

[On Sale at 10 PM on March 7th] Tanzanite from Tanzania 0.416ct Loose Stone Sale price¥12,800

[On Sale 3/7 at 10pm] Madagascar Blue Sapphire 0.347ct Loose Stone with Certificate of Authenticity Sale price¥25,800

[On Sale 3/7 at 10pm] Zimbabwe Green Diamond Rough (Sawable) 0.428ct Rough with Trigon Sale price¥158,000

[On Sale at 10 PM on March 8th] Unheated Pigeon Blood Ruby 0.380ct Loose Stone AIGS Sale price¥79,800

coming soon

【12562049掲載】オーストラリア産レインボーラティスサンストーン 0.373ctルース

[12562049] Australian Rainbow Lattice Sunstone 0.373ct Loose Sale price¥7,980

[On Sale 2/23 10pm] Zimbabwe Green Diamond Rough (Sawable) 0.402ct Rough with Trigon Sale price¥148,000

[On Sale 2/21 10pm] American Anthill Garnet 4.0mm/0.359ct Loose Stone Sale price¥12,800

[On Sale 2/21 10pm] American Anthill Garnet 4.0mm/0.332ct Loose Stone Sale price¥11,000

[On Sale 3/8 at 10pm] Brazilian London Blue Topaz 0.476ct Loose Sale price¥7,980

[On Sale at 10 PM on 2/26] Sri Lankan Hessonite Garnet 0.441ct Loose Stone Sale price¥8,800

[On Sale 2/26 10pm] Kenyan Tsavorite 0.164ct Loose Stone Sale price¥18,800

[On sale 3/2 at 10pm] Synthetic Rutile 3.9mm/0.329ct Loose Stone Sale price¥9,800

[On sale 3/1 at 10pm] Synthetic Alexandrite 0.338ct Loose Stone Sale price¥12,800

【12561168掲載】メキシコ産ウォーターオパール（ファセットカット） 0.349ctルース

[On Sale at 10 PM on March 8th] Mexican Water Opal (Faceted, Contralus Opal) 0.349ct Loose Sale price¥9,800

[On Sale at 10 PM on March 8th] Sri Lankan Yellow Sapphire 0.291ct Loose Sale price¥9,800

[On Sale 2/15 at 10pm] Zimbabwean Bicolor Euclase 0.109ct Loose Stone Sale price¥59,800

[On Sale at 10 PM on February 19th] Oregon Sunstone from the United States, 0.428ct Loose Sale price¥18,800

[On Sale 3/8 at 10pm] 0.175ct Loose Hot Pink Sapphire from Mozambique Sale price¥15,800

[On Sale 3/8 at 10pm] Mexican Fire Opal 0.459ct Loose Sale price¥18,800

[On Sale at 10 PM on March 8th] Colombian Emerald 0.155ct Loose Sale price¥29,800

[On Sale at 10 PM on March 8th] Sri Lankan Blue Sapphire (Ice Blue) 0.272ct Loose Sale price¥12,800

[On Sale 3/8 at 10pm] Zimbabwean Bicolor Euclase 0.227ct Loose Stone Sale price¥49,800

[On Sale at 10 PM on March 8th] Tanzanian Bicolor Zoisite 0.312ct Loose Stone Sale price¥12,800

[On Sale 3/8 at 10pm] Tanzanian Bekili Blue Garnet (Color Change Garnet) 0.102ct Loose Stone Sale price¥12,800

[On Sale at 10 PM on March 8th] Myanmar Red Spinel 0.196ct Loose Sale price¥8,800

[On sale at 10pm on 2/15] Tanzanite from Tanzania 0.331ct loose stone Sale price¥14,800

[On sale from 10pm on 2/11] Diamond rough (makeable) 0.353ct rough Sale price¥14,800

[On sale from 10pm on 2/11] Diamond rough (makeable) 0.279ct rough Sale price¥9,800

[On sale from 10pm on 2/11] Diamond rough (makeable) 0.284ct rough Sale price¥12,800

[On Sale 2/8 at 10 PM] Canadian Green Diamond Rough (Sawable) 0.338ct Rough (with Trigon) 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] Colombian Emerald 0.451ct Loose Sale price¥39,800

[On Sale at 10 PM on February 5th] 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

[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 4.2mm/0.347ct Loose Stone Sale price¥12,800

[On Sale 2/7 at 10pm] 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

[On Sale 2/7 at 10pm] Colombian Emerald Pair, 0.243ct Sale price¥69,800

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.