0.1ct - 2.0ct

Purple spinel 0.424ct loose (rose cut) Sale price¥6,980

Pink tourmaline 0.391ct loose Sale price¥4,980

Pigeon Blood Ruby 0.590ct Loose AIGS Sale price¥55,800

ロシア産デマントイドガーネット（ホーステール認む） 5.3mm/0.633ctルース

Russian demantoid garnet (horsetail recognized) 5.3mm/0.633ct loose Sale price¥198,000

Mexican Topaz 1.50ct Loose Sale price¥9,800

【NOBU氏】アマゾン産グリーンオパール《コラボ》6.8mmルース - カラッツSTORE

[Mr. NOBU] Green Opal from Amazon [Collaboration] 6.8mm loose Sale price¥6,980

[Cat cut] Amazon green opal 6.5mm/0.580ct loose Sale price¥6,980

Red beryl 0.181ct loose Sale price¥29,800

Conch pearl 0.390ct loose (pink white color) Sale price¥18,800

Sealight (Shealight) 1.940ct loose Sale price¥15,800

Pink zircon 0.930ct loose Sale price¥8,800

【KEN氏】アフガニスタン産クリノゾイサイト 1.810ctルース（ファントムカット） - カラッツSTORE

Afghanistan Clinozoisite 1.810ct Loose Stone (Phantom Cut) Sale price¥8,800

タンザニア産アンデシン・ラブラドライト（通称名ブルームーンストーン） 0.726ctルース

[Available at 10 PM on September 9th] [Dandelion Cut] Tanzanian Andesine Labradorite (also known as Blue Moonstone) 6.0mm/0.726ct Loose Stone Sale price¥49,800

[On sale at 10pm on September 16th] Sri Lankan saffron 0.116ct loose stone with certificate of authenticity Sale price¥25,800

[On Sale at 10 PM on September 16th] Brazilian Indigolite Tourmaline 4.0mm/0.240ct Loose Stone with Certificate of Authenticity Sale price¥29,800

[On Sale at 10 PM on September 14th] Tanzanian Sunstone 1.599ct Loose Sale price¥9,800

[On Sale at 10 PM on September 27th] Brazilian Gashenite 0.259ct Loose Stone Sale price¥6,980

[On sale at 10pm on September 14th] Brazilian Imperial Topaz 0.563ct Loose Sale price¥15,800

coming soon

奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 0.321ctルース

[10/11 22:00] Rainbow Garnet from Tenkawa Village, Nara Prefecture, 3.9mm/0.321ct Loose Stone (Rose Cut) Sale price¥8,800

[On Sale at 10 PM on September 14th] Tanzanian Rhodolite Garnet 0.801ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on September 26th] Tanzanian Rhodolite Garnet 0.405ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on September 21st] Chinese Cinnabar 0.549ct Loose Stone with Certificate of Authenticity Sale price¥19,800

[On Sale at 10 PM on September 21st] Chinese Cinnabar 0.486ct Loose Stone with Certificate of Authenticity Sale price¥16,800

[Sold at 10 PM on September 18th] Synthetic Alexandrite 1.538ct Loose Stone Sale price¥29,800

[Sold at 10 PM on September 13th] Brazilian Indigolite Tourmaline 0.715ct Loose Stone with Certificate of Authenticity Sale price¥45,800

[On sale at 10pm on September 18th] 1.476ct loose sphalerite from Spain Sale price¥29,800

[On Sale at 10 PM on September 19th] Colombian Emerald 0.101ct Loose Sale price¥15,800

[Sold at 10 PM on September 19th] Blue Sapphire 4.0mm/0.314ct Loose Sale price¥112,800

[Sale at 10 PM on September 13th] [Sakura Shape] Siberian Blue Quartz (Synthetic Quartz) 1.171ct Loose Stone Sale price¥39,800

[On Sale at 10 PM on September 19th] Tanzanian Dragon Garnet 0.829ct Loose Stone Sale price¥22,800

[On Sale at 10 PM on September 15th] Tanzanian Dragon Garnet 0.977ct Loose Stone Sale price¥27,800

[On Sale at 10pm on October 5th] Tanzanian Dragon Garnet 0.754ct Loose Stone Sale price¥19,800

[On Sale at 10 PM on September 13th] Tanzanian Dragon Garnet 0.754ct Loose Stone Sale price¥19,800

Zimbabwean Bicolor Euclase 0.183ct Loose Stone Sale price¥49,800

[On Sale at 10 PM on September 13th] Mozambique Paraiba Tourmaline 0.154ct Loose Stone Sale price¥19,800

Sold out

[Sold at 10 PM on September 7th] Tanzanian Magnesioaxinite 0.357ct Loose Stone, Japan-Germany Qualification

[Sold at 10 PM on September 6th] Tanzanian Magnesioaxinite 0.380ct Loose Stone, Japan-Germany Qualification Sale price¥39,800

Star spinel 1.210ct loose Sale price¥15,800

Fire Opal 2 Stone Pair 4mm/0.336ct Loose Sale price¥3,980

Red beryl 0.109ct loose Sale price¥18,800

Montebrasite 4.1mm 2 stone pair loose (green) Sale price¥6,980

[Posted 12529980] Paraiba tourmaline from Brazil 1.649ct loose Sale price¥18,800

Red beryl 0.310ct loose Sale price¥39,800

Bicolor spinel 1.040ct loose (gray/purple) Sale price¥69,800

[Dandelion cut] Morganite 7mm/1.02ct loose with patch Sale price¥49,800

Diamond 0.618ct loose (I, I1, tree cut) Sale price¥128,000

[On Sale at 10 PM on August 31st] Paraiba Tourmaline from Mozambique, 3.5mm/0.172ct Loose Stone Sale price¥15,800

[On Sale at 10 PM on September 3rd] Paraiba Tourmaline from Mozambique, 3.2mm/0.119ct Loose Stone Sale price¥9,800

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.