¥10,000 - ¥30,000

Kochi Prefecture Blood Red Coral Loose (6-8mm / damaged by water pressure during retrieval) "Multiple purchase discount available" Sale price¥12,800

【On sale June 26th, 10 PM JST】Indian Parrot Chrysoberyl 0.518ct Loose Gemstone Sale price¥29,800

[On sale June 17th at 10 PM] Indian Parrot Chrysoberyl Cat's Eye 0.792ct Loose Stone Sale price¥29,800

Sri Lankan Yellow Sapphire 0.349ct Loose Sale price¥12,800

Russian rough diamond (sawable) 0.088ct loose Sale price¥19,800

Tanzanian Lavender Tanzanite 0.577ct Loose Stone Sale price¥12,800

Tanzanian bicolor tanzanite 0.573ct loose stone Sale price¥12,800

Tanzanian Lavender Tanzanite 0.558ct Loose Stone Sale price¥12,800

Brazilian Euclase 0.695ct Loose Stone Sale price¥18,800

Brazilian Euclase 0.289ct loose stone Sale price¥12,800

K18 ペリステライト 0.66ct・ダイヤモンドペンダントトップ（ネックレストップ）鑑別書

[22602614 Listed] [Calafli] K18 Peristerite 0.66ct Pendant Top (Necklace Top) Sale price¥29,800

[On Sale July 5th at 10 PM] Colombian Emerald 3.3mm/0.158ct Loose Stone with Appraisal Sale price¥18,800

[Sales start July 5, 10 PM JST] Madagascar Padparadscha Sapphire 3.3mm/0.156ct Loose Stone - Central Gem Laboratory certified Sale price¥29,800

[On sale July 5th at 10 PM] Colombian Emerald 3.3mm/0.167ct Loose Gemstone with Certificate Sale price¥24,800

[On sale July 5th at 10 PM] Colombian Emerald 0.147ct Loose Stone with Appraisal Sale price¥12,800

[On sale July 9th, 10 PM JST] Tanzanian Windsor Sapphire (Purple Sapphire) 0.393ct Loose Stone with Certificate Sale price¥18,800

[On Sale July 5 at 10 PM JST] Madagascar Grandidierite 2.5mm/0.065ct Loose Stone with Certification Sale price¥15,800

[On sale July 5, 10 PM] Sri Lankan orange sapphire 0.654ct loose stone with gemological report Sale price¥29,800

[On sale July 6th at 10 PM] Sri Lankan Yellow Sapphire 0.815ct Loose Stone with Certification Sale price¥15,800

[Sale starts July 6th at 10 PM] Sri Lankan Blue Sapphire 4.0mm/0.269ct Loose Stone with Appraisal Sale price¥29,800

ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 1.967ctルース

[Sale July 6th at 10 PM] Brazilian Tinker Bell Quartz (Pink Fire Quartz) 1.967ct Loose Stone Sale price¥14,800

[On sale July 9th at 10 PM JST] Brazilian Black Garden Quartz Loose Stone 5.030ct Sale price¥12,800

ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 4.823ctルース

[On Sale July 9 at 10 PM JST] Brazilian Tinkerbell Quartz (Pink Fire Quartz) 11mm/4.823ct Loose Stone Sale price¥25,800

[On Sale July 6, 10 PM] Brazilian Blue Tourmaline in Quartz 4.241ct Loose Stone Sale price¥19,800

[On sale July 4th at 10 PM] Brazilian Dumortierite in Quartz, 1.290ct Loose Stone Sale price¥12,800

[On sale July 4th at 10 PM] Brazilian Dumortierite in Quartz, 1.349ct Loose Stone Sale price¥12,800

[On sale July 4, 10 PM] 0.416 ct Loose Mozambique Ruby with Certificate Sale price¥29,800

[On sale 7/9 at 10 PM] Brazilian Santa Maria Aquamarine Loose Stone 0.188ct with certification Sale price¥25,800

[On sale July 3 at 10 PM] Jeremejevite from Namibia, 0.103 ct loose stone, with certificate Sale price¥25,800

【Sales start 10 PM JST on July 6】Tanzanian Bi-Color Grossular Garnet 0.586ct Loose Gemstone Sale price¥14,800

【Sales start 10 PM on July 22nd (JST)】Tanzanian Bi-Color Grossular Garnet 0.855ct Loose Stone Sale price¥18,800

[On sale July 9th at 10 PM JST] Tanzanian Bicolor Grossular Garnet 0.787ct Loose Stone Sale price¥19,800

[On sale July 3 at 10 PM] Tanzanian Bi-Color Grossular Garnet 0.934ct Loose Stone Sale price¥24,800

【Sales start at 10 PM on July 3rd (JST)】Bicolor Grossular Garnet from Tanzania 0.602ct Loose Gemstone Sale price¥16,800

[On sale July 6th at 10 PM JST] 0.544ct Tanzanian Bi-Color Grossular Garnet Loose Gemstone Sale price¥14,800

[On sale July 15, 10 PM JST] Tanzanian Bi-Color Grossular Garnet, 0.882ct Loose Stone Sale price¥22,800

【Sale starts 10 PM on July 3rd】Tanzanian Bicolor Grossular Garnet 0.779 ct Loose Stone Sale price¥19,800

[On Sale July 9, 10 PM JST] Bicolor Grossular Garnet from Tanzania 0.839ct Loose Stone Sale price¥19,800

イエローダイヤモンド 0.262ctルース(UNDER S(LIGHT YELLOW), VS1)

[On sale July 4th at 10 PM] Yellow Diamond 0.262ct Loose (LIGHT YELLOW, VS1, Princess Cut) Sale price¥25,800

[Available 7/4 10 PM JST] Diamond 3.0mm/0.100ct Loose Stone (E, VVS-2, VeryGood) Sale price¥22,800

[On Sale July 4th at 10 PM] Diamond 3.8mm/ 0.198ct Loose Stone (D, VVS-2, Very Good) Sale price¥29,800

【Sales start July 22nd, 10 PM JST】Malawi Moonstone 2.114ct Loose Stone Sale price¥12,800

[On sale July 22nd at 10 PM] Malawi Moonstone 2.001ct Loose Gemstone Sale price¥12,800

[Item 12563407] Afghan Green Hauyne 0.075ct Loose Stone Sale price¥29,800

Limited 5 Stones: Synthetic Alexandrite Gacha (Princess Cut, 3.5-4.5mm) (Multi-Buy Discount Available) Sale price¥17,800

[Posted on 12563395] Tanzanian Pink Spinel 0.148ct Loose Gemstone Sale price¥22,800

[Published on 12563384] Tanzanian Zircon 2.053ct Loose Sale price¥19,800

[Listing 12563380] Unset 1.077ct Tanzanian Zircon Sale price¥12,800

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.