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 "

coming soon

Pink diamond 2.2mm/0.041ct loose (FANCY LIGHT PURPLE PINK, SI2) Sale price¥49,800

Sold out

イエローダイヤモンド 0.706ctルース(FANCY DEEP ORANGY YELLOW, I-1)

[Posted in 32501430] Yellow Diamond 0.706ct Loose (FANCY DEEP ORANGY YELLOW, I-1)

Sold out

グリーンイエローダイヤモンド 0.502ctルース(VERY LIGHT GREEN YELLOW, I1)

Green yellow diamond 5mm/0.502ct loose (VERY LIGHT GREEN YELLOW, I1)

Sold out

イエローダイヤモンド 0.390ctルース(UNDER S(LIGHT YELLOW), VVS1, 3Excellent H&C)

Yellow Diamond 4.7mm/0.390ct Loose (LIGHT YELLOW, VVS1, 3Excellent H&C)

Sold out

Yellow Diamond 0.551ct Loose (Cabochon Cut)

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

Brown diamond (sugarloaf cut) 0.278ct loose (SI class equivalent)

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)

Sold out

グリーンダイヤモンド（トリートメント） 0.183ctルース(FANCY INTENSE YELLOW GREEN TREATED, VS1)

【On sale June 26th, 10 PM JST】 Apple Green Diamond (Treated) 3.6mm/0.183ct Loose (FANCY INTENSE YELLOW GREEN TREATED, VS1)

Sold out

ブラウンダイヤモンド 0.600ctルース(FANCY LIGHT BROWN, SI-2)

Brown Diamond 5.3mm/0.600ct Loose Stone (FANCY LIGHT BROWN, SI-2)

Sold out

[On sale May 3rd, 10 PM] [Colorful] Pt900 Pink Diamond 0.008ct / Diamond 0.03ct Pendant (Necklace) with Identification Card

Sold out

ブラウンダイヤモンド 0.554ctルース(UNDER S(LIGHT YELLOWISH BROWN), SI-2)

Brown Diamond 0.554 ct Loose (Color Distribution / LIGHT YELLOWISH BROWN, SI-2)

Sold out

Pink diamond 2.2mm/0.043ct loose (FANCY LIGHT PURPLISH PINK, SI2)

Sold out

0.084ct loose green diamond (FANCY GRAY GREEN, I-1)

Sold out

Fancy Intense Purple Pink Diamond 0.021ct Loose (FANCY INTENSE PURPLE PINK, SI2)

Sold out

【32501456掲載】ピンクダイヤモンド（プリンセスカット） 0.089ctルース(FANCY LIGHT PURPLISH PINK, I-1)

[Posted in 32501456] Pink Diamond (Princess Cut) 0.089ct Loose (FANCY LIGHT PURPLISH PINK, I-1)

Sold out

パープルダイヤモンド 0.041ctルース(FANCY PINK PURPLE, SI2)

0.041ct loose purple diamond (FANCY PINK PURPLE, SI2)

Sold out

Yellow Diamond (Cabochon Cut) 0.324ct Loose

Sold out

イエローダイヤモンド（H&C） 0.313ctルース(UNDER N(VERY LIGHT YELLOW), VVS-2, Excellent H&C)

Yellow Diamond (H&C) 4.3mm/0.313ct Loose (VERY LIGHT YELLOW), VVS-2, Excellent H&C)

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

ピンクダイヤモンド 2.2mm/0.044ctルース(FANCY PURPLE PINK, I-1)

Pink diamond 2.2mm/0.044ct loose (FANCY PURPLE PINK, I-1)

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

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

Yellow Diamond (Cabochon Cut) 0.237ct Loose

Sold out

イエローダイヤモンド 0.180ctルース(FANCY DEEP ORANGY YELLOW, I1) - KARATZ STORE｜カラッツSTORE

Yellow diamond 0.180ct loose (FANCY DEEP ORANGY YELLOW, I1)

Sold out

【32501256掲載】イエローダイヤモンド 0.167ctルース(FANCY VIVID ORANGY YELLOW, VS-2)

[Posted in 32501256] Yellow Diamond 0.167ct Loose (FANCY VIVID ORANGY YELLOW, VS-2)

Sold out

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

フォレストグリーンダイヤモンド（トリートメント） 0.326ctルース(FANCY DARK GRAY GREEN, SI-2)

Forest Green Diamond (Treatment) 0.326ct Loose (FANCY DARK GRAY GREEN, SI-2)

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

Canary Yellow Diamond (Treatment) 0.260ct Loose (FANCY INTENSE GREENISH YELLOW*, SI-2)

Sold out

カメレオンダイヤモンド 0.057ctルース(FANCY LIGHT GRAY GREEN, SI2)

Chameleon Diamond 0.057ct Loose (FANCY LIGHT GRAY 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

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)

[Sale starts at 10 PM on June 20th] Yellow Diamond (treated) 0.190ct Loose Stone (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

Yellow diamond rough stone (makeable) 0.247ct rough stone

Sold out

ブルーダイヤモンド（トリートメント） 0.139ctルース(Fancy Greenish Blue, SI1)

Ice Blue Diamond (Treatment) 3.2mm/0.139ct Loose (Fancy Greenish Blue, SI1)

Sold out

Sierra Leone Yellow Diamond Rough (Sawable) 0.102ct Rough

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

ブルーダイヤモンド（トリートメント） 0.095ctルース(Fancy Greenish Blue, SI1)

Ice Blue Diamond (Treatment) 2.8mm/0.095ct Loose (Fancy Greenish Blue, SI1)

Sold out

ピンクダイヤモンド（ラウンドカット） 0.060ctルース(VERY LIGHT BROWN PINK, I-2)

Pink diamond (round cut) 2.5mm/0.060ct loose (VERY LIGHT BROWN PINK, I-2)

Sold out

オレンジダイヤモンド 0.176ctルース(FANCY DEEP YELLOWISH ORANGE, I-1)

[Sale on 7/26 at 10 PM] 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)

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.