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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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Sold out K18YG アメリカ産オレゴンサンストーン 0.676ct ・パパラカラーサファイア・ブラウンダイヤモンド・ペンダントトップ（ネックレストップ）

K18YG Oregon Sunstone 0.676ct from the United States, Padparadscha Color Sapphire, Brown Diamond Pendant (Necklace)

Sold out Pt900/K18PGピンクダイヤモンド0.048ct リング - KARATZ STORE｜カラッツSTORE

Pt900/K18PG pink diamond 0.048ct ring

Sold out ピンクダイヤモンド 0.049ctルース(FANCY INTENSE PURPLE PINK, VS2)

0.049ct Pink Diamond Loose (Fancy Intense Purple Pink, VS2)

Sold out 【カラフリ】K18WGブラウンダイヤモンドリング

[Colorful] K18WG Brown Diamond Ring
Sold out 南アフリカ産グリーンダイヤモンド原石（ソーヤブル） 0.233ctルース

Green diamond rough from South Africa (sawable) 0.233ct loose

Sold out 【カラフリ】Pt900ブルーダイヤモンド0.20ct ペンダントトップ - カラッツSTORE

[Colorful] Pt900 blue diamond 0.20ct pendant top

Sold out ピンクダイヤモンド 0.092ctルース(FANCY PURPLISH PINK, SI2) - KARATZ STORE｜カラッツSTORE

Pink diamond 0.092ct loose (FANCY PURPLISH PINK, SI2)

Sold out 南アフリカ産グリーンダイヤモンド原石（メイカブル） 0.212ctルース

South African green diamond rough (makeable) 0.212ct loose

Sold out ブラウンダイヤモンド 1.334ctルース(FANCY DARK BROWN, I1) - KARATZ STORE｜カラッツSTORE

Brown diamond 1.334ct loose (FANCY DARK BROWN, I1)

Sold out イエローダイヤモンド 3mm/0.111ctルース(FANCY VIVID ORANGY YELLOW, SI-2)

Yellow Diamond 3mm/0.111ct Loose (FANCY VIVID ORANGY YELLOW, SI-2)

coming soon [Posted in 32501467] Brown Diamond (Treatment) 0.169ct Loose (FANCY RED BROWN, VS2)

[Posted in 32501467] Brown Diamond (Treatment) 0.169ct Loose (FANCY RED BROWN, VS2) Sale price¥39,800
Sold out パープルダイヤモンド 0.041ctルース(FANCY PINK PURPLE, SI2)

[On Sale at 10 PM on August 12th] Purple Diamond 0.041ct Loose (FANCY PINK PURPLE, SI2)

Sold out イエローダイヤモンド（カボションカット） 0.324ctルース

Yellow Diamond (Cabochon Cut) 0.324ct Loose
Sold out アイスブルーダイヤモンド 3.0mm/0.090ctルース（Undetermined） GIA

Ice Blue Diamond 3.0mm/0.090ct Loose (Undetermined) GIA

Sold out ファンシーパープリッシュピンクダイヤモンド 1.7mm/0.022ctルース(FANCY PURPLISH PINK, SI2)

Fancy Purplish Pink Diamond 1.7mm/0.022ct Loose (FANCY PURPLISH PINK, SI2)

Sold out イエローダイヤモンド 0.306ctルース(LIGHT YELLOW, SI1)

Yellow diamond 0.306ct loose (LIGHT YELLOW, SI1)

Sold out ピンクダイヤモンド 0.059ctルース(FANCY LIGHT PURPLISH PINK, SI1) - KARATZ STORE｜カラッツSTORE

Pink diamond 0.059ct loose (FANCY LIGHT PURPLISH PINK, SI1)

Sold out 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)
Sold out カメレオンダイヤモンド 0.140ctルース(VERY LIGHT GRAYISH YELLOW GREEN, SI2)

Chameleon Diamond 3.3mm/0.140ct Loose (VERY LIGHT GRAYISH YELLOW GREEN, SI2)
Sold out カメレオンダイヤモンド 0.110ctルース(FANCY BROWNISH GREENISH YELLOW, SI2)

Chameleon Diamond 3mm/0.110ct Loose (FANCY BROWNISH GREENISH YELLOW, SI2)
Sold out イエローダイヤモンド 0.206ctルース(FANCY DEEP ORANGY YELLOW, SI2) - KARATZ STORE｜カラッツSTORE

Yellow diamond 0.206ct loose (FANCY DEEP ORANGY YELLOW, SI2)

Sold out シエラレオネ産イエローダイヤモンド原石（ソーヤブル） 0.102ct原石

Sierra Leone Yellow Diamond Rough (Sawable) 0.102ct Rough
Sold out パープルダイヤモンド（トリートメント） 2.6mm/0.088ctルース（バイカラー蛍光）

[On Sale 10/11 at 10 PM] Purple Diamond (Treated) 2.6mm/0.088ct Loose (Bicolor Fluorescent)
Sold out 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)
Sold out 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)

FANCY INTENSE YELLOW, SI-1
Sold out ロンドンブルーダイヤモンド（トリートメント）

London Blue Diamond (Treatment) 0.202ct Loose (FANCY DEEP GREEN BLUE, VS2)

Sold out イエローダイヤモンド 0.071ctルース(FANCY INTENSE ORANGY YELLOW, SI2) - KARATZ STORE｜カラッツSTORE

Yellow diamond 0.071ct loose (FANCY INTENSE ORANGY YELLOW, SI2)

Sold out ピンクダイヤモンド 0.030ctルース(FANCY LIGHT PURPLE PINK, SI1)

Pink Diamond 0.030ct Loose (FANCY LIGHT PURPLE PINK, SI1)
Sold out イエローダイヤモンド 0.201ctルース（ローズカット） - KARATZ STORE｜カラッツSTORE

Yellow diamond 0.201ct loose (rose cut)

Sold out イエローダイヤモンド 0.081ctルース(FANCY DEEP YELLOW, SI2) - KARATZ STORE｜カラッツSTORE

Yellow diamond 0.081ct loose (FANCY DEEP YELLOW, SI2)

coming soon イエローダイヤモンド2.6mmルース（VSクラス相当）

Yellow diamond 2.6mm loose (equivalent to VS class) Sale price¥12,800
Sold out イエローダイヤモンド 0.102ctルース（TLC／VSクラス相当）

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

Sold out ピンクダイヤモンド 0.039ctルース(LIGHT PINK, VS2)

[Available at 10 PM on August 3rd] Pink Diamond 2.1mm/0.039ct Loose (Light Pink, VS2)
Sold out ブラウンダイヤモンド 0.169ctルース

Brown Diamond 0.169ct Loose
Sold out 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)

Sold out カナリーイエローダイヤモンド（トリートメント） 0.029ctルース

[Posted in 12530233] Canary Yellow Diamond (Treatment) 0.029ct Loose
Sold out Pink Diamond Gacha! 💎 Fancy Light Pink Diamond 0.117ct (Certified) Includes One UV-Resistant Pink Diamond (Multiple Purchase Discounts Available)

Pink Diamond Gacha! 💎 Fancy Light Pink Diamond 0.117ct (Certified) Includes One UV-Resistant Pink Diamond (Multiple Purchase Discounts Available)

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

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

Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Intense Pink) 1 stone loose (multiple purchase discount available)
Sold out [Available at 10 PM on September 7th] Limited Quantity Gem Gacha 💎 Win 1 or 2 gems, including pink diamonds and 46ct cantera opals. Discounts available for multiple purchases.

[Available at 10 PM on September 7th] Limited Quantity Gem Gacha 💎 Win 1 or 2 gems, including pink diamonds and 46ct cantera opals. Discounts available for multiple purchases.
Sold out [Jeweler's Tools] {3 sets remaining} 3-piece set: Jewelry loupe (14x magnification), blue diamond, and pink tourmaline or sapphire

[Jeweler's Tools] {3 sets remaining} 3-piece set: Jewelry loupe (14x magnification), blue diamond, and pink tourmaline or sapphire
Sold out Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Light Pink) 1 stone loose (multiple purchase discount available)

Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Light Pink) 1 stone loose (multiple purchase discount available)
Sold out Limited to 9 stones: 1 London Blue Diamond Loose (VS-SI class equivalent, 2.0mm) Multiple purchase discounts available

Limited to 9 stones: 1 London Blue Diamond Loose (VS-SI class equivalent, 2.0mm) Multiple purchase discounts available
Sold out Limited to 10 stones: 1 London blue diamond loose (VS-SI class equivalent, 1.8mm) Multiple purchase discounts available

Limited to 10 stones: 1 London blue diamond loose (VS-SI class equivalent, 1.8mm) Multiple purchase discounts available
Sold out Diamond gacha💎Fancy cut brown diamonds and FancyDarkBrown diamonds (with medium treasure chest)《Multiple purchase discount available》

Diamond gacha💎Fancy cut brown diamonds and FancyDarkBrown diamonds (with medium treasure chest)《Multiple purchase discount available》

Sold out Pt950ピンクダイヤモンド0.075ct リング - KARATZ STORE｜カラッツSTORE

Pt950 pink diamond 0.075ct ring

Sold out Pt950ピンクダイヤモンド0.077ct リング（LIGHT BROWN PINK ,SI-1 ） - KARATZ STORE｜カラッツSTORE

Pt950 pink diamond 0.077ct ring (LIGHT BROWN PINK, SI-1)

Sold out Pt950ピンクダイヤモンド0.379ct リング（FANCY DEEP BROWNISH ORANGY PINK,SI2） - KARATZ STORE｜カラッツSTORE

Pt950 pink diamond 0.379ct ring (FANCY DEEP BROWNISH ORANGY PINK, SI2)

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.