0.1ct - 0.3ct

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Montebrasite 0.370ct loose (green)

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イエローダイヤモンド（トリートメント） 0.247ctルース(FANCY INTENSE GREENISH YELLOW, SI2)

Yellow Diamond (Treatment) 0.247ct Loose (FANCY INTENSE GREENISH YELLOW, SI2)

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Yellow diamond 2.8mm/0.102ct loose (TLC/VS class equivalent)

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Color change garnet 0.290ct loose

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Sphane 4.3mm/0.275ct loose Sale price¥3,980

coming soon

Sphene 4.3mm/0.360ct loose Sale price¥3,980

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[Available at 10 PM on August 23rd] [Limited to 8 stones] Brazilian Rainbow Aquamarine Loose Stone (Pear Shape) [Multiple purchase discounts available]

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Sri Lankan White Sapphire 4.3mm/0.382ct Loose

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Mint Tourmaline 3.2mm/0.164ct Loose Stone

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ファンシーインテンスイエローダイヤモンド 0.126ctルース(FANCY INTENSE YELLOW, SI-1)

Tagtupite from Greenland 0.236ct loose

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ロシア産デマントイドガーネット（ホーステール認む） 3mm/0.138ctルース

Russian demantoid garnet (horsetail recognized) 3mm/0.138ct loose

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Colombian trapiche emerald (reverse trapiche) 0.147ct rough stone

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Montebrasite from Madagascar 0.366ct loose

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Russian demantoid garnet (horsetail recognized) 0.457ct rough stone

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Paudretite from Myanmar 0.193ct loose sunflower beads

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Brazilian rainbow scapolite 3mm/0.101ct loose (rose cut)

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Mexican Opal 0.498ct Loose (Contralus Opal)

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South African diamond 0.240ct rough stone

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ナミビア産エレメージェバイト（ジェレメジェバイト） 0.315ctルース（酸化鉄含有）

Eremejevite (jeremejevite) from Namibia 0.315ct loose (contains iron oxide)

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ブラジル産パライバトルマリン 0.157ctルース（CuO:1.0%、MnO:3.7%）

Brazilian Paraiba tourmaline 0.157ct loose (CuO:1.0%, MnO:3.7%)

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Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.265ct loose stone

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Afghanistan Hackmanite 0.212ct loose stone

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Madagascar Pink Sapphire 0.301ct Loose Stone (Silky Pink)

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Dominican Republic Conch Pearl (with flame pattern) 0.432ct loose

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Sri Lankan bicolor sapphire 0.301ct loose stone

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【KEN氏】アンデシン 5.2mm/0.479ctルース - カラッツSTORE

Tibetan Andesine 5.2mm/0.479ct Loose Stone

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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） 0.339ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.339ct loose stone

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American oil-free red beryl 0.21ct loose GIA

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【ダンデライオンカット】グリーントルマリン 2.156ctルース《コラボ》ワッペン付

[Dandelion Cut] Brazilian Green Tourmaline 8mm/2.156ct Loose Stone

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Myanmar Taaffeite 0.201ct Loose Stone Japan-Germany

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Thai Pigeon Blood Ruby 0.380ct Loose AIGS

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Madagascar Bicolor Sapphire 0.303ct Loose

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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)

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[On sale from 12:00 on 5/15] Madagascar bicolor sapphire 0.333ct loose stone

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Grandidierite from Madagascar 0.242ct loose stone

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ブラジル産パライバトルマリン 0.225ct原石（ CuO:2.1%、MnO:0.9%）

Brazilian Paraiba tourmaline 0.225ct raw stone (CuO:2.1%, MnO:0.9%)

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Jeremejevite 0.490ct rough stone from Namibia

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Ethiopian oil-free emerald 0.32ct loose GIA

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ミントグリーンダイヤモンド（トリートメント） 0.172ctルース（VSクラス相当,テーパードカット）

Mint green diamond (treatment) 0.172ct loose (VS class equivalent, tapered cut)

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Tanzanian bicolor sapphire 0.417ct loose stone

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Diamond 3.2mm/0.129ct loose (F, SI-1, EXCELLENT)

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American Benitoite 5-stone set 2.0mm/0.124ct loose stone

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Dioptase from Namibia 0.121ct loose Japanese-German book

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.