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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 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 《Shinjuku Pop-Up Event Commemorative Offer》《Limited Stock Remaining》 Color Diamond Set (including pink, ice blue, green diamonds, and more, 9 stones or more in total), valued at ¥30,000 normally. 《Multi-Purchase Discount Available》

《Shinjuku Pop-Up Event Commemorative Offer》《Limited Stock Remaining》 Color Diamond Set (including pink, ice blue, green diamonds, and more, 9 stones or more in total), valued at ¥30,000 normally. 《Multi-Purchase Discount Available》
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)

Sold out ブルーダイヤモンド 2.3mm/0.056ctルース(LIGHT GREEN BLUE, SI-1)

Blue Diamond 2.3mm/0.056ct Loose (Light Green Blue, SI-1)

Sold out ブラウンダイヤモンド 3.2mm/0.132ctルース（VSクラス相当）

Brown diamond 0.132ct loose

Sold out FANCY PURPLISH PINK/SI-1/with Pink Diamond Gacha (Multiple purchase discount available)

FANCY PURPLISH PINK/SI-1/with Pink Diamond Gacha (Multiple purchase discount available)
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)

Pink Diamond 2.1mm/0.039ct Loose (Light Pink, VS2)
Sold out 南アフリカ産ダイヤモンド（メイカブル） 0.193ct原石

South African yellow diamond (makeable) 0.193ct rough stone

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 [Sale begins 7/XX 10 PM JST] Limited 1 Set: Treated Diamond Set (approx. 1.2mm x 11 stones, 0.086ct) [Bulk purchase discount available]

[Sale begins 7/XX 10 PM JST] Limited 1 Set: Treated Diamond Set (approx. 1.2mm x 11 stones, 0.086ct) [Bulk purchase discount available]
Sold out [On sale July 5th, 10 PM JST] 《Limited 13 Stones》Unique Diamond Gacha - Including 1ct+ diamonds, round cut, rose cut, and fluorescent diamonds (with a bonus London Blue Diamond stone!) 《Multiple Purchase Discount Available》

[On sale July 5th, 10 PM JST] 《Limited 13 Stones》Unique Diamond Gacha - Including 1ct+ diamonds, round cut, rose cut, and fluorescent diamonds (with a bonus London Blue Diamond stone!) 《Multiple Purchase Discount 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 [Sale starts July 11th, 10 PM JST] Limited to 16 Stones! Pink Diamond Gacha with 2 FANCY Color Pink Diamonds (with sorting certificate), normally ¥39,800. Multiple Purchase Discount Available.

[Sale starts July 11th, 10 PM JST] Limited to 16 Stones! Pink Diamond Gacha with 2 FANCY Color Pink Diamonds (with sorting certificate), normally ¥39,800. Multiple Purchase Discount Available.
Sold out Diamond gacha featuring a 0.072ct FANCY DEEP pink diamond, normally priced at 70,000 yen, and ice blue diamonds equivalent to VS class. (Multiple purchase discounts available)

Diamond gacha featuring a 0.072ct FANCY DEEP pink diamond, normally priced at 70,000 yen, and ice blue diamonds equivalent to VS class. (Multiple purchase discounts 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 A single loose pink diamond, including a fancy pink diamond, normally priced at 39,800 yen (multiple purchase discounts available)

A single loose pink diamond, including a fancy pink diamond, normally priced at 39,800 yen (multiple purchase discounts available)

Sold out Limited Quantity Gem Gacha! Win 1 or 2 gems, including pink diamonds and 46ct candela opals. Discounts available for multiple purchases.

Limited Quantity Gem Gacha! Win 1 or 2 gems, including pink diamonds and 46ct candela opals. Discounts available for multiple purchases.
Sold out [Jeweler's Tools] 3-piece set: Jewelry Loupe (14x magnification), Blue Diamond, and Pink Tourmaline or Sapphire

[Jeweler's Tools] 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 [On Sale May 29, 10 PM JST] 《Limited 13 Stones》Yellow Diamond Gacha, win a VVS-2/4.3mm/with Sorting Report worth 39,800 yen (regular price) 💎《Multiple Purchase Discount Available》

[On Sale May 29, 10 PM JST] 《Limited 13 Stones》Yellow Diamond Gacha, win a VVS-2/4.3mm/with Sorting Report worth 39,800 yen (regular price) 💎《Multiple Purchase Discount Available》
Sold out Limited to 10 stones: London Blue Diamond Gacha Loose Stone (including 3.6mm, VS-SI grade equivalent, treated) [Multiple purchase discounts available]

Limited to 10 stones: London Blue Diamond Gacha Loose Stone (including 3.6mm, VS-SI grade equivalent, treated) [Multiple purchase discounts 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 Lab-grown ice blue diamond set of two (synthetic diamond, VS class equivalent, 1mm) {Multiple purchase discount available}

Lab-grown ice blue diamond set of two (synthetic diamond, VS class equivalent, 1mm) {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)

Sold out Pt950ピンクダイヤモンド0.169ct リング（FANCY LIGHT BROWNISH PINK ） - KARATZ STORE｜カラッツSTORE

Pt950 pink diamond 0.169ct ring (FANCY LIGHT BROWNISH PINK)

Sold out Pt950オレンジダイヤモンド0.338ct リング（FANCY DEEP YELLOWISH ORANGE） - KARATZ STORE｜カラッツSTORE

Pt950 Orange Diamond 0.338ct Ring (FANCY DEEP YELLOWISH ORANGE)

Sold out Pt950 イエローダイヤモンド0.158ct ペンダント（FANCY DEEP ORANGE YELLOW） - KARATZ STORE｜カラッツSTORE

Pt950 Yellow Diamond 0.158ct Pendant (FANCY DEEP ORANGE YELLOW)

Sold out 【31500766掲載】ピンクダイヤモンド 0.072ctルース(FANCY PURPLE PINK , SI2)

FANCY PURPLE PINK 0.072ct loose (FANCY PURPLE 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.