Width: 2.1 - 3.0mm

【8/30 22時販売】マダガスカル産サファリン 0.164ctルース鑑別書 Sale price¥12,800

【8/30 22時販売】マダガスカル産サファリン 0.145ctルース鑑別書 Sale price¥11,800

【8/30 22時販売】ブルーサファイア 0.176ctルース Sale price¥14,800

【8/30 22時販売】ブルーサファイア 0.148ctルース Sale price¥8,800

【8/29 22時販売】ロシア産デマントイドガーネット（ホーステール認む） 2.7mm/0.093ctルース Sale price¥14,800

【#202607 Akihabara Pop-up Store - Currently Removed from Stock】【Listed on 12563192】Unheated Ruby 0.210ct Loose Stone Sale price¥62,800

【#202607 Akihabara Pop-up Store - Currently Removed】【Listed as 12563268】Rough Diamond (Sawable) from South Africa 0.271ct Sale price¥88,800

Brazilian Euclase 0.224ct Loose Stone (Bicolor Euclase) Sale price¥18,800

【9/1 22時販売】コロンビア産エメラルド 0.123ctルース Sale price¥18,800

Russian rough diamond (sawable) 0.101ct loose Sale price¥22,800

[Posted as 12563267] Rough Botswana Diamond (Sawable) 0.140ct Sale price¥44,800

[Listed as 12563354] Jeremejevite from Namibia, 0.103ct Loose Stone Sale price¥25,800

[Sale starts August 25th at 10 PM JST] Madagascar Pezzottaite 2.7mm/0.062ct Loose Gemstone Sale price¥11,000

[On sale August 25th, 10 PM] Ruby 0.168ct Loose Stone Sale price¥11,800

【12563130 Posted】 Nigerian CobaltGahnite 0.176ct Loose Sale price¥24,800

Zimbabwe Euclase 0.134ct Loose Sale price¥25,800

[Posted on 12563358] Jeremejevite from Namibia 0.150ct Loose Sale price¥37,800

[12563370 listed] Eucrite from Zimbabwe 0.083ct Loose Sale price¥18,800

[Published as 12563759] Tanzanian Ayanad Spinel (Hot Pink Spinel) 0.181ct Loose Gemstone Sale price¥25,800

Brazilian Alexandrite 0.105ct Loose Stone [Listed under 12563842] Sale price¥29,800

[Lottery Sale 0628_08] Unheated Kashmir Sapphire 0.160ct Loose GIA Sale price¥98,000

[Posted on 12563959] Madagascar Padparadscha Sapphire 0.164ct Loose Stone Sale price¥36,800

Loose White Diamond 0.108ct (FANCY WHITE, I-1) Sale price¥55,800

Brazilian Paraiba Tourmaline 0.068ct loose stone Sale price¥61,800

[Lottery Sale 0707_09] Unheated Burmese Sapphire 0.210ct Loose GIA Sale price¥69,800

[#202607 Akihabara Pop-up, Currently Off-site] [12563253 Posted] Afghan Hauyne 0.112ct Loose Stone Sale price¥28,800

[#202607AkihabaraPopUpTakenOut] [12560302Listed] Magnesioaxinite 0.154ct Loose Sale price¥18,800

【#202607 Akihabara Pop-up Store - Currently Removed from Stock】【Listed on 12563127】Nigerian Cobalt Hausmannite 0.147ct Loose Sale price¥22,800

[On sale August 9, 10 PM] Untreated Purple-Pink Imperial Topaz, 0.250 ct Loose Stone, with Certificate, from Brazil Sale price¥39,800

[On sale August 19th, 10 PM JST] Untreated Purple-Pink Imperial Topaz from Brazil, 0.241ct loose stone with gemological report Sale price¥35,800

[Sale starts 8/14 at 10 PM JST] Pakistani Lazulite (blue spar) 0.056ct Loose Gemstone with Certificate Sale price¥11,800

[On Sale August 16th at 10 PM] Lazurite (Lapis Lazuli) from Pakistan, 0.116ct Loose Stone with Certificate Sale price¥24,800

[On sale 8/9 at 10 PM] Pakistani Lapis Lazuli (Lazurite) 0.063ct Loose Stone with Certificate Sale price¥14,800

[Sale at 10 PM on August 9] Pakistan Lazurite (Lapis Lazuli) 0.054ct Loose Gemstone with Certificate Sale price¥12,800

[Sale on August 9 at 10 PM] Pakistani Lazurite (Lapis Lazuli) 0.052ct Loose Stone with Certificate Sale price¥12,800

Afghan Green Hauyne 0.062ct Loose with Certificate Sale price¥16,800

[Listed as 12563891] Namibian Jeremejevite 0.089ct Loose Sale price¥22,800

Brazilian Alexandrite 0.102ct Loose Stone with Certification Sale price¥29,800

[On sale August 2 at 10 PM] Colombian Emerald 0.107 ct Loose Gemstone with Certificate Sale price¥12,800

Afghan Green Hauyne 0.150ct Loose Stone with Certificate Sale price¥55,800

ピンクダイヤモンド 2.2mm/0.044ctルース(FANCY LIGHT PURPLE PINK, SI1)

Pink Diamond 2.2mm/0.044ct Loose (FANCY LIGHT PURPLE PINK, SI1) Sale price¥39,800

ピンクダイヤモンド 0.073ctルース(FANCY LIGHT PURPLE PINK, SI2)

Pink Diamond 0.073ct Loose (FANCY LIGHT PURPLE PINK, SI2) Sale price¥39,800

Colombia Emerald Cat's Eye 0.060ct Loose, Hōki Kyō Sale price¥15,800

[On sale August 5th at 10 PM] Afghan Green Hauyne 0.086ct Loose Stone with Certificate Sale price¥22,800

【Listed on 12563251】Afghan Hauyne 0.080ct Loose Sale price¥25,800

[Listed as 12563371] Zimbabwe Euclase 0.087ct Loose Gemstone Sale price¥19,800

マラウイ産ピンクサファイア（マラウイサファイア） 3.0mm/0.128ctルース

[Listed as 12563467] Malawi sapphire 0.128ct loose stone Sale price¥18,800

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.