color diamond

Diamond is the birthstone of April. Diamonds with a deep color are collectively called fancy color diamonds. It has various shades such as yellow, brown, pink, blue, green, and orange. Rare items such as red and blue can often be traded for billions of yen or more, depending on the color depth and size.

Karatz GemMagazine
" Colored Diamond "

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ファンシーイエローダイヤモンド0.090ctルース - KARATZ STORE｜カラッツSTORE

Fancy yellow diamond 0.090ct loose

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【4/3 22時販売】ブラウンダイヤモンド 0.169ctルース

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[On sale from 22:00 on 2/8] 1 deep blue diamond (SI-I class equivalent, 4-4, 2mm, average 0.29ct, treated) {Multiple purchase discount}

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Green Diamond (treated) 2.6mm/0.078ct loose (SI class equivalent)

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Light mint green diamond (treatment) 2.6mm/0.074ct loose (VS-SI class equivalent)

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Ice blue diamond 0.051ct loose (equivalent to VS class)

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ブラウンダイヤモンド 3mm/0.183ctルース（VSクラス相当,プリンセスカット）

Brown diamond 3mm/0.183ct loose (VS class equivalent, princess cut)

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ピンクダイヤモンド 0.042ctルース(FANCY LIGHT BROWNISH PINK, SI-2)

Pink diamond 0.042ct loose (FANCY LIGHT BROWNISH PINK, SI-2)

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ブラウンダイヤモンド3石セット 0.091ctルース（SI-Iクラス相当,蛍光色違い3石）

Brown diamond 3 stone set 0.091ct loose (SI-I class equivalent, 3 stones with different fluorescent colors)

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アイスブルーダイヤモンド 0.040ctルース（VSクラス相当,マーキースカット）

Ice blue diamond 0.040ct loose (VS class equivalent, marquise cut)

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Ice blue diamond 0.040ct loose (VS class equivalent, marquise cut)

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アイスブルーダイヤモンド 0.040ctルース（VSクラス相当,プリンセスカット）

Ice blue diamond 0.040ct loose (VS class equivalent, princess cut)

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Canary Yellow Diamond (Treatment) 2mm Loose

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Canary Yellow Diamond (Treatment) 2mm Loose

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Mint green diamond 0.060ct loose (SI class equivalent)

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Ice blue diamond 0.057ct loose (equivalent to VS class)

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Ice blue diamond 0.046ct loose (equivalent to VS class)

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Ice blue diamond 0.042ct loose (equivalent to VS class)

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【31500915掲載】ブルーダイヤモンド（トリートメント） 0.179ctルース(FANCY DEEP GREEN BLUE treated, SI2)

Blue Diamond (Treatment) 0.179ct Loose (FANCY DEEP GREEN BLUE treated, SI2)

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Yellow diamond 0.188ct loose (FANCY DEEP BROWNISH YELLOW, I1)

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イエローダイヤモンド 0.055ctルース(FANCY DEEP ORANGY YELLOW, I1) - KARATZ STORE｜カラッツSTORE

Yellow diamond 0.055ct loose (FANCY DEEP ORANGY YELLOW, I1)

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ロンドンブルーダイヤモンド（トリートメント） 2.5mm/0.070ctルース（VSクラス相当）

London Blue Diamond (Treatment) 2.5mm/0.070ct Loose (VS class equivalent)

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アイスブルーダイヤモンド 0.037ctルース（VSクラス相当,プリンセスカット）

Ice blue diamond 0.037ct loose (VS class equivalent, princess cut)

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Ice blue diamond 0.065ct loose (SI class equivalent)

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{7th Anniversary Special}💎[On sale from 10pm on 12/8] Gem Gacha💎 Chameleon diamonds, pink diamonds, benitoite, etc. (plus one Brazilian alexandrite) {Multiple purchase discounts available}

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ジェムガチャ💎 ピンクダイヤモンド2石含むやブラジル産パライバトルマリンインクォーツやモンタナサファイアなど20石《複数購入割引有》

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{7th Anniversary Special}💎 Fluorescent Pink Diamond or Yellow Diamond & Fluorescent Rose Cut 2 Stone Set {Multiple Purchase Discount}

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Brown Diamond 0.141ct Loose

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Limited to 17 stones: Peridot green diamond (treated, VS class equivalent, 2mm) Multiple purchase discounts available

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Limited to 2 stones Orange diamond (treated, 2mm) Multiple purchase discount available

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Limited to 10 stones: Blue diamond rough and loose stone set of 2 (treated) Multiple purchase discount

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Mint green diamond (treatment) 0.043ct loose (equivalent to VS class)

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Ice blue diamond 0.064ct loose (SI class equivalent)

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オレンジダイヤモンド (トリートメント) 2mm/0.033ctルース（SIクラス相当）

Orange Diamond (Treatment) 2mm/0.033ct Loose (SI class equivalent)

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オレンジダイヤモンド (トリートメント) 2mm/0.031ctルース（VSクラス相当）

Orange diamond (treatment) 2mm/0.031ct loose (equivalent to VS class)

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スカイブルーダイヤモンド（トリートメント） 2.1mm/0.042ctルース（VSクラス相当）

Sky blue diamond (treatment) 2.1mm/0.042ct loose (equivalent to VS class)

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アイスブルーダイヤモンド 0.039ctルース（VSクラス相当,プリンセスカット）

Ice blue diamond 0.039ct loose (VS class equivalent, princess cut)

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FANCY DARK BROWN, SI2

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カナリーイエローダイヤモンド（トリートメント） 2mm/0.029ctルース（VSクラス相当）

Canary yellow diamond (treatment) 2mm/0.029ct loose (equivalent to VS class)

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Yellow diamond 0.106ct loose (equivalent to I class)

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Ice blue diamond 0.047ct loose (SI class equivalent)

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Ice blue diamond 0.043ct loose (equivalent to VS class)

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Ice blue diamond 0.038ct loose (equivalent to VS class)

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【31500826掲載】イエローダイヤモンド 0.083ctルース(FANCY YELLOW, I1)

Fancy Yellow Diamond 0.083ct Loose (FANCY YELLOW, I1)

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Limited to 2 stones: London Blue Diamond (treated) 1 loose stone (VS class equivalent, including round 3mm) Multiple purchase discounts available

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Limited to 3 stones: 1 loose brown diamond (princess cut, 0.1ct or more, VS class equivalent) Multiple purchase discounts available

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Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Vivid Pink) 1 stone loose (multiple purchase discount available)

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Mint green diamond (treatment, VS to SI class equivalent) 1 stone

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.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.

KARATZ・Five Commitments