Sa line

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

[Published as 12563385] Tanzanian Zircon 3.964ct Loose Sale price¥39,800

【12563732 Posted】Tanzanian Red Spinel 0.177ct Loose Sale price¥35,800

[On sale August 28th, 10 PM JST] Cambodian Blue Zircon (Ratanakiri Blue) 0.515ct Loose Gemstone with Certificate Sale price¥14,800

[Sale begins 8/28 at 10 PM JST] Cambodian Blue Zircon (Ratanakiri Blue) 0.431ct Loose Stone with Certification Sale price¥12,800

[Available 8/28 at 10 PM] Tanzanian Blue Spinel 1.154ct Loose Stone with Gem Identification Report Sale price¥39,800

[Available 8/28 at 10 PM] Tanzanian Blue Spinel 1.117ct Loose Gemstone with Identification Report Sale price¥39,800

[Listing #12563493] Sri Lankan Blue Sapphire 0.434ct Loose Gemstone Sale price¥22,800

[Listed as 12563733] Tanzania Red Spinel 0.241ct Loose Stone Sale price¥43,800

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

[Listed as 12563903] Tanzanian Bicolor Zoisite 1.382ct Loose Stone Sale price¥45,800

[Listed as 12563918] Sri Lankan Purple Sapphire 0.730ct Loose Stone Sale price¥55,800

[Lottery Sale 0812_17] Unheated Burmese Jedi Spinel 0.430ct Loose Gemstone GUILD Sale price¥118,000

[12552852] Citrine 2.734ct loose stone Sale price¥22,800

[#202607 Akihabara Pop-up Store - Currently Removed from Stock] [12563475 Posted] Mahenge Spinel (Pink Spinel) from Tanzania 0.492ct Loose Stone Sale price¥49,800

[#202607 Akihabara Pop-up Store - Currently Displayed] [12563067 Listed] Padparadscha Sapphire 0.649ct Loose Stone Sale price¥128,000

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

Zoisite from Tanzania, 0.643 ct loose Sale price¥18,800

[#202607 Akihabara Pop-up Store - Currently out on loan] [Listed as 12563392] Tanzanian Red Spinel 0.291ct Loose Stone Sale price¥35,800

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

Pt900 カンボジア産ラタナキリブルージルコン 2.22ct・ダイヤモンド0.38ctリング中宝ソ

[Lottery Sale 0725_14] Pt900 Cambodian Blue Zircon (Ratanakiri Blue) 2.22ct Ring with GIA Report Sale price¥158,000

[Lottery Sale 0718_08] Tanzanian Pink Zoisite 0.419ct Loose Stone with Gem Identification Report Sale price¥69,800

[Lottery Sale 0725_03] Tanzania Purple Spinel 0.427ct Loose Stone with Certificate Sale price¥29,800

【#202607 Akihabara Pop-up Store - Currently out for display】【12563131 Posted】Brazilian Santa Maria Aquamarine 0.299ct Loose Stone Sale price¥19,800

【Sales start: August 13, 10 PM JST】Loose Zimbabwe Sphene, 0.512 ct, with certificate Sale price¥17,800

[On sale August 13 at 10 PM] 0.356ct Zimbabwe Sphene Loose Stone with Certificate Sale price¥12,800

【#202607 Akihabara Pop-up Store Carry-out】【12562676 Listed】Sri Lankan Blue Sapphire 0.501ct Loose Stone Sale price¥29,800

[#202607AkihabaraPopUpTakeout][12562677Listed] Sri Lankan Blue Sapphire 0.513ct Loose Sale price¥22,800

[On sale August 16 at 10 PM] Brazilian Spessartine Garnet 0.580ct Loose Stone with Certificate of Authenticity Sale price¥14,800

[On Sale August 19, 10 PM] Brazilian Spessartine Garnet 0.968 ct Loose Stone with Certificate Sale price¥25,800

[On Sale August 16, 10 PM] Burmese Red Spinel 0.236ct Loose Stone with Certificate Sale price¥45,800

[Listed on 12563962] Madagascar Padparadscha Sapphire 0.314 ct Loose Stone Sale price¥69,800

[12563993] Cambodian Blue Zircon 3.546ct Loose Sale price¥69,800

[On Sale August 6, 10 PM] [Colori] K18 Blue Sapphire 1.13ct / Diamond 0.75ct Ring with Appraisal Report Sale price¥188,000

【On Sale August 1st, 10 PM JST】Cambodian Blue Zircon (Ratanakiri Blue) 1.847ct Loose Stone with Certificate Sale price¥22,800

0.752ct Tanzanian Golden Zircon Loose Gemstone with Certificate Sale price¥12,800

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

[Sales start August 2nd at 10 PM] Madagascar blue sapphire 0.662 ct loose gemstone with a certificate Sale price¥18,800

1.025ct Loose White Sapphire from Sri Lanka with Gemological Report Sale price¥35,800

[Posted as 12562691] Malawi Bicolor Zircon 2.082ct Loose Sale price¥128,000

Spanish Sphalerite 6.5mm/1.321ct Loose Stone Sale price¥19,800

Madagascar Padparadscha Sapphire 3.4mm/0.208ct Loose Gem with Central Gem Laboratory Appraisal Sale price¥45,800

Cambodian Blue Zircon (Ratanakiri Blue) 1.360ct Loose Stone with Certification Sale price¥18,800

Oregon Sunstone from USA, 6.7mm/1.032ct, loose stone Sale price¥18,800

[Posted on 12563480] Madagascar Teal Green Sapphire 0.470ct Loose Stone Sale price¥29,800

[Listed as 12563489] Sri Lankan Blue Sapphire 0.636 ct Loose Stone Sale price¥39,800

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

Tanzanian Zircon 1.237 ct Loose Stone [Listing 12563381] Sale price¥15,800

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.