0.1ct - 0.3ct

Ruby from Greenland 0.307ct loose with certificate Sale price¥15,800

【KEN氏】メキシコ産ファイアオパール 5mm/0.342ctルース - カラッツSTORE

Mexican Fire Opal 5mm/0.342ct Loose (Contralus Opal) Sale price¥9,800

【KEN氏】アンデシン 4.2mm/0.257ctルース - カラッツSTORE

Tibetan Andesine 4.2mm/0.257ct Loose Stone Sale price¥2,980

【KEN氏】アンデシン 4.5mm/0.289ctルース - カラッツSTORE

Tibetan Andesine 4.5mm/0.289ct Loose Stone Sale price¥2,980

Madagascar Grandidierite 0.156ct loose stone Sale price¥35,800

[On sale at 10pm on 7/17] Cambodian orange zircon 0.371ct loose stone Sale price¥3,980

Spanish Andalusite 4mm/0.204ct loose stone (rose cut) Sale price¥4,980

Dominican Republic Conch Pearl 0.388ct Loose Sale price¥7,980

Brazilian alexandrite 0.151ct loose Sale price¥25,800

Sapphire from Sri Lanka (Safarin) 0.245ct loose Sale price¥12,800

Colombian trapiche emerald (reverse trapiche) 0.134ct rough stone Sale price¥12,800

[7/12 22:00 Sale] Pakistani Veirinite (Beirinite) 0.161ct Loose Stone, Japan-Germany Exchange Sale price¥45,800

South African diamond rough stone 0.430ct Sale price¥9,800

Colombian trapiche emerald (reverse trapiche) 0.178ct rough stone Sale price¥15,800

Greenland Pink Sapphire (Ice Ruby) 3.5mm/ 0.217ct Loose Stone with Certificate Sale price¥12,800

Pezzotite from Madagascar 0.257ct loose Sale price¥15,800

Veilinite from Pakistan (Vailinite) 0.168ct loose Sale price¥39,800

Paraiba tourmaline from Brazil 0.200ct loose (CuO: 0.7%, MnO: 4.0%) Sale price¥29,800

Brazilian Paraiba Tourmaline 3.1mm/0.116ct loose stone (CuO:0.9%, MnO:2.4%) Sale price¥19,800

Nigerian Cobalt Garnite 0.175ct Loose Stone, Japan-Germany Exchange Sale price¥35,800

Andalusite from Madagascar 4.6mm/0.369ct loose stone Sale price¥5,980

Sweet Home Rhodochrosite 2.7mm/0.108ct Loose Stone Sale price¥12,800

フォレストグリーンダイヤモンド（トリートメント） 0.431ctルース(FANCY DARK GRAY GREEN, SI-2)

Forest Green Diamond (Treatment) 0.431ct Loose (FANCY DARK GRAY GREEN, SI-2) Sale price¥35,800

フォレストグリーンダイヤモンド（トリートメント） 0.326ctルース(FANCY DARK GRAY GREEN, SI-2)

Forest Green Diamond (Treatment) 0.326ct Loose (FANCY DARK GRAY GREEN, SI-2) Sale price¥29,800

Mexican Fire Opal 0.448ct Loose Sale price¥3,980

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.265ct loose stone Sale price¥2,980

ブラジル産パーティカラーパライバトルマリン 0.203ctルース（CuO:1.7%、MnO:2.9%）

Particolor Paraiba tourmaline from Brazil 0.203ct loose (CuO:1.7%, MnO:2.9%) Sale price¥59,800

Russian demantoid garnet (horsetail recognized) 0.291ct loose Sale price¥69,800

Sri Lankan bicolor sapphire 0.301ct loose stone Sale price¥8,800

【KEN氏】アンデシン 5.2mm/0.453ctルース - カラッツSTORE

Tibetan Andesine 5.2mm/0.453ct Loose Stone Sale price¥4,980

アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.385ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.385ct loose stone Sale price¥2,980

American oil-free red beryl 0.21ct loose GIA Sale price¥188,000

Myanmar Musgravite 0.351ct Loose Stone Japan-Germany Sale price¥188,000

American Red Beryl 0.104ct Loose Sale price¥15,800

Montana Sapphire 4mm/0.330ct Loose (Yellow Sapphire) Sale price¥7,980

Nigerian Cobalt Garnite 0.216ct Loose Stone, Japan-Germany Exchange Sale price¥45,800

Paraiba tourmaline from Brazil 0.217ct loose (CuO:1.5%, MnO:0.5%) Sale price¥39,800

ブラジル産パーティカラーパライバトルマリン 0.146ctルース（CuO:1.8%、MnO:3.0%)

Brazilian particolor Paraiba tourmaline 0.146ct loose (CuO:1.8%, MnO:3.0%) Sale price¥29,800

Myanmar Musgravite 0.214ct Loose Stone Nikko Kan Sale price¥258,000

ブラジル産パライバトルマリン 0.215ctルース（CuO:1.1%、MnO:3.3%）

Brazilian Paraiba tourmaline 0.215ct loose (CuO:1.1%, MnO:3.3%) Sale price¥55,800

Sri Lankan bicolor sapphire 0.304ct loose stone Sale price¥14,800

ダイヤモンド 0.131ctルース(G, VS-1, EXCELLENT ハート＆キューピッド)

Diamond 3.3mm/0.131ct Loose (G, VS-1, EXCELLENT Heart & Cupid) Sale price¥25,800

ロシア産デマントイドガーネットキャッツアイ（ホーステール認む） 2.8mm/0.188ctルース

Russian demantoid garnet cat's eye (horsetail recognized) 2.8mm/0.188ct loose Sale price¥25,800

South African diamond rough stone 0.330ct Sale price¥5,980

American Red Beryl 0.200ct Loose (Heart Shape) Nikkeikan Sale price¥35,800

American Red Beryl 0.252ct Loose Sale price¥39,800

Madagascar Bicolor Sapphire 0.298ct Loose (Padparadscha Color) Sale price¥35,800

[On sale from 10pm on 5/11] Madagascar bicolor sapphire 0.263ct loose stone (Padparadscha color) Sale price¥29,800

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.