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

Yellow diamond 0.306ct loose stone (LIGHT YELLOW, SI-1)

Sold out カメレオンダイヤモンド 0.153ctルース(LIGHT GRAY GREEN, SI-1)

Chameleon Diamond 0.153ct Loose (LIGHT GRAY GREEN, SI-1)
Sold out イエローダイヤモンド（カボションカット） 0.237ctルース

Yellow Diamond (Cabochon Cut) 0.237ct Loose
Sold out [On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"

[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"
Sold out [Available 10/12 at 10 PM] 《Limited to 1 stone》 FANCY LIGHT PINK 2.9mm/0.092ct FANCY Color Pink Diamond (Sorting report included) 《Multi-buy discount available》

[Available 10/12 at 10 PM] 《Limited to 1 stone》 FANCY LIGHT PINK 2.9mm/0.092ct FANCY Color Pink Diamond (Sorting report included) 《Multi-buy discount available》
Sold out 【On sale 10/4 at 22:00】《Limited to 6 stones》 FANCY-color pink diamond gacha, including FANCY PINK, FANCY INTENSE, FANCY DEEP, and rose-cut stones (all stones include sorting reports)《Multi-purchase discount available》

【On sale 10/4 at 22:00】《Limited to 6 stones》 FANCY-color pink diamond gacha, including FANCY PINK, FANCY INTENSE, FANCY DEEP, and rose-cut stones (all stones include sorting reports)《Multi-purchase discount available》
Sold out カメレオンダイヤモンド 0.128ctルース(FANCY LIGHT GRAY GREEN, SI-1)

Chameleon Diamond 3.2mm/0.128ct Loose (FANCY LIGHT GRAY GREEN, SI-1)
Sold out イエローダイヤモンド 0.270ctルース(UNDER N(VERY LIGHT YELLOW), SI-2)

[On sale 8/30 at 10 PM] Yellow Diamond 4.0mm/0.270ct Loose Stone (UNDER N (VERY LIGHT YELLOW), SI-2)
Sold out Pink Diamond 0.137ct Loose (FANCY DEEP BROWNISH PINK, I-1)

Pink Diamond 0.137ct Loose (FANCY DEEP BROWNISH PINK, I-1)
Sold out Pink diamond 0.030ct loose (FANCY PURPLE PINK, SI2)

Pink diamond 0.030ct loose (FANCY PURPLE PINK, SI2)
Sold out イエローダイヤモンド 0.165ctルース(FANCY VIVID ORANGY YELLOW, SI-2)

Yellow Diamond 3.4mm/0.165ct Loose (Fancy Vivid Orangy Yellow, SI-2)
Sold out イエローダイヤモンド 0.262ctルース(UNDER S(LIGHT YELLOW), VS1)

Yellow Diamond 0.262ct Loose (LIGHT YELLOW, VS-1, Princess Cut)
Sold out イエローダイヤモンド（トリートメント） 0.190ctルース(FANCY INTENSE YELLOW*, SI-2)

Loose Yellow Diamond (Treated) 0.190ct (FANCY INTENSE YELLOW, SI-2)
Sold out カメレオンダイヤモンド 0.118ctルース(LIGHT GRAYISH GREENISH YELLOW, VS-2)

Chameleon Diamond 3.1mm/0.118ct Loose Stone (LIGHT GRAYISH GREENISH YELLOW, VS-2)
Sold out ダイヤモンド原石（メイカブル） 0.247ct原石

Yellow diamond rough stone (makeable) 0.247ct rough stone
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 【On sale 10/4 at 22:00】《Limited to 6 stones》 FANCY-color pink diamond gacha, including FANCY PINK, FANCY INTENSE, FANCY DEEP, and rose-cut stones (all stones include sorting reports)《Multi-purchase discount available》

【On sale 10/4 at 22:00】《Limited to 6 stones》 FANCY-color pink diamond gacha, including FANCY PINK, FANCY INTENSE, FANCY DEEP, and rose-cut stones (all stones include sorting reports)《Multi-purchase discount available》
Sold out レッドブラウンダイヤモンド（トリートメント） 3.4mm/0.169ctルース(FANCY RED BROWN, VS2)

Treated red-brown diamond, 3.4mm/0.169ct loose (FANCY RED BROWN, VS2)
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）

Purple Diamond (Treated) 2.6mm/0.088ct Loose (Bicolor Fluorescent)
Sold out オレンジダイヤモンド 0.176ctルース(FANCY DEEP YELLOWISH ORANGE, I-1)

Orange Diamond 0.176ct Loose Stone (FANCY DEEP YELLOWISH ORANGE, I-1)
Sold out イエローダイヤモンド 0.121ctルース(FANCY INTENSE YELLOW, VS-1)

[Posted in 32501431] Yellow Diamond 0.121ct Loose (FANCY INTENSE YELLOW, VS-1)

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 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, SI-2)

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, SI-1)
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 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, VS-2)
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 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 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 《Limited to 5 stones》Fluorescent brown diamond single loose stone (pear shape, SI clarity equivalent, 0.2ct UP) 《Bulk purchase discount available》

《Limited to 5 stones》Fluorescent brown diamond single loose stone (pear shape, SI clarity equivalent, 0.2ct UP) 《Bulk 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 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 《Limited to 13 stones》Yellow Diamond Gacha: Win a VVS-2/4.3mm stone with a sorting report (regularly 39,800 yen) 💎《Multiple purchase discount available》

《Limited to 13 stones》Yellow Diamond Gacha: Win a VVS-2/4.3mm stone with a sorting report (regularly 39,800 yen) 💎《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 [On sale July 20th at 10 PM] "Limited to 13 Stones" Diamond Gacha: Win a FANCY VIVID Yellow Diamond (with sorting report) worth 22,800 yen. One loose stone. (Multiple purchase discount available.)

[On sale July 20th at 10 PM] "Limited to 13 Stones" Diamond Gacha: Win a FANCY VIVID Yellow Diamond (with sorting report) worth 22,800 yen. One loose stone. (Multiple purchase discount 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0.379ct 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, SI-2)

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)

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.