Vertical: 6.1 - 7.0mm

【202608GIA Appraisal Request】【On Sale June 5th, 10 PM】Russian Demantoid Garnet (with horsetail inclusion) 6.8mm/1.366ct Loose Stone with Appraisal Report Sale price¥458,000

[Available 9/11 at 10 PM] Almandine Garnet from Tanzania, 1.354ct Loose Gemstone Sale price¥15,800

[Available 10/9, 10 PM] Sri Lankan Green Zircon 1.113ct Loose Gemstone Sale price¥9,800

タンザニア産サンストーン（イリュージョンサンストーン） 6.3mm/0.762ctルース

【9/11 10 PM Release】 Tanzanian Sunstone (Illusion Sunstone) 6.3mm/0.762ct Loose Gemstone Sale price¥9,800

[On sale 9/15 at 10 PM] Tanzanian Blue Spinel 0.725ct Loose Gemstone with Identification Report Sale price¥22,800

[Available 10/14 at 22:00] Madagascar Sphene 6.8mm/1.363ct Loose Gemstone with Appraisal Report Sale price¥19,800

[Available 9/17 at 10:00 PM] Russian Phenakite from Malyshevo, 0.493ct Loose Gemstone, JGGL Certified Sale price¥14,800

[Lottery Sale 0718_05] Unheated Australian Teal Blue Sapphire 1.010 ct Loose GIA Sale price¥128,000

Zimbabwean Apatite (UV Type) 0.585ct Loose Sale price¥8,800

Mozambique Pink Tourmaline 1.122ct Loose Stone (Contains CuO) Sale price¥39,800

Brazilian Goshenite 0.771ct loose stone Sale price¥6,980

Colombian Trapiche Emerald 0.372ct Loose Sale price¥18,800

【Available Sept 10, 10:00 PM】 Tanzanian Bicolor Grossular Garnet 0.869ct Loose Stone Sale price¥25,800

ブラジル産非加熱ピンクインペリアルトパーズ（シェリーピンク） 0.496ctルース

[9/7 10 PM Release] Brazilian Unheated Imperial Topaz (Sherry Color) 0.496ct Loose Gemstone Sale price¥29,800

South African Rhodochrosite 0.990ct Loose Stone by Nikkei Sale price¥128,000

[Lottery Sale 0731_10] Colombian Muzo Non-Oil Emerald 0.370ct Loose GIA Sale price¥298,000

[Lottery Sale 0818_07] Madagascar Bi-Color Sapphire 1.870ct Loose Stone with Gem Identification Report Sale price¥79,800

[Lottery Sale 0818_09] Brazilian Dioptase 1.608ct Loose with Certificate Sale price¥59,800

[Available 8/29 at 10 PM] Madagascar Andalusite 0.454ct Loose Gemstone Sale price¥7,980

[Available 8/29 at 10 PM] Tanzanian Purple Spinel 0.751ct Loose Stone Sale price¥18,800

Royal blue sapphire 1.220ct loose stone Sale price¥258,000

Synthetic Alexandrite 0.578ct loose stone Sale price¥9,800

【9/1 10 PM Release】US Peridot 1.280ct Loose Stone Sale price¥18,800

[9/2, 10 PM release] Madagascar Padparadscha Sapphire 0.497ct Loose Stone, DGL Certified Sale price¥69,800

[Available 9/3, 10 PM] Turkish Diaspore 0.410ct Loose Stone Sale price¥9,800

[On sale 9/3 at 10:00 PM] Brazilian Rhodonite in Quartz 6.2mm/0.600ct Loose Stone Sale price¥9,800

[On sale 8/23 at 10 PM JST] Sri Lankan Yellow Sapphire 1.100ct Loose Stone, Japan/Germany certified Sale price¥49,800

[On sale 8/23 10 PM JST] Brazilian Rio Grande do Norte Apatite Cat's Eye 7.0mm/ 2.219ct Loose Stone with Appraisal Sale price¥22,800

[Sales start August 23rd at 10 PM] Brazilian Rio Grande do Norte Apatite Cat's Eye 1.782ct Loose Stone with Certificate Sale price¥25,800

[On sale August 23rd at 10 PM] Apatite Cat's Eye from Rio Grande do Norte, Brazil, 1.295ct Loose Stone with Certificate Sale price¥19,800

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

[12558559] Zimbabwe bicolor euclase rough stone 0.744ct Sale price¥39,800

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

[#202607 Akihabara Pop-up Store Takeout in Progress] [12562065 Posted] Brazilian Sky Blue Topaz 0.906ct Loose Stone Sale price¥12,800

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

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

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

Apatite from Madagascar 0.608ct Loose Stone Sale price¥8,800

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

[Listed as 12563246] Mexican Fire Opal 1.115ct Loose Sale price¥25,800

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

[Listed on 12563726] Sri Lankan Purple Sapphire 0.661ct Loose Stone Sale price¥59,800

Australian Rainbow Lattice Sunstone 0.850ct Loose Stone Sale price¥8,800

Oregon Sunstone from the USA, 7.0mm/1.345ct Loose Sale price¥35,800

Brown Diamond 0.778ct Loose Stone (FANCY BROWN, SI-1) Sale price¥59,800

Sphalerite from Bulgaria 7.0mm/1.790ct Loose Stone Sale price¥59,800

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

Bicolor Grossular Garnet from Tanzania 0.839ct Loose Sale price¥19,800

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.