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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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Pt850/K14WG アップルグリーンダイヤモンド0.38ct・ダイヤモンド0.50ct ピアス 鑑別書

[On sale July 30, 10 PM] [Colorfri] Pt850/K14WG Apple Green Diamond 0.38ct / Diamond 0.50ct Earrings with appraisal report Sale price¥98,000
ピンクダイヤモンド 0.075ctルース(FANCY PURPLE PINK, SI1)

[On sale 7/18 at 10 PM] Pink Diamond 0.075ct Loose Stone (FANCY PURPLE PINK, SI1) Sale price¥79,800
カメレオンダイヤモンド 4.0mm/0.255ctルース(LIGHT GRAYISH GREEN YELLOW, VS2)

[For xxx only] Chameleon Diamond 0.255ct Loose (LIGHT GRAYISH GREEN YELLOW, VS2) (Listed under 32501581) Sale price¥59,800
ブラウンダイヤモンド 0.778ctルース(FANCY BROWN, SI1)

[On sale July 18th at 10 PM] Brown Diamond 0.778ct Loose (FANCY BROWN, SI1) Sale price¥59,800
ブラウンダイヤモンド 0.728ctルース(FANCY DARK BROWN, SI2)

[On sale July 18th at 10 PM] Brown Diamond 0.728ct Loose Stone (FANCY DARK BROWN, SI2) Sale price¥49,800
ピンクダイヤモンド 2.2mm/0.044ctルース(FANCY LIGHT PURPLE PINK, SI1)

[On sale July 26, 10 PM] Pink Diamond 2.2mm/0.044ct Loose (FANCY LIGHT PURPLE PINK, SI1) Sale price¥39,800
ピンクダイヤモンド 0.073ctルース(FANCY LIGHT PURPLE PINK, SI2)

[On Sale July 31, 10 PM JST] Pink Diamond 0.073ct Loose (FANCY LIGHT PURPLE PINK, SI2) Sale price¥39,800
ブラウンダイヤモンド 5.0mm/0.556ctルース(FANCY LIGHT BROWN, VS-1)

[Sales from 10 PM on July 18] Brown Diamond 5.0mm/0.556ct Loose (FANCY LIGHT BROWN, VS-1) Sale price¥39,800
[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" Sale price¥22,000
[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.) Sale price¥3,980
Pt900 アイスブルーダイヤモンド（トリートメント） 1.00ct リング

[On sale May 6th, 10 PM JST] [Colorfury] Pt900 Ice Blue Diamond (Treated) 1.00ct Ring Sale price¥298,000
Zimbabwe Green Diamond Rough (Sawable) 0.428ct Rough Stone with Trigon

Zimbabwe Green Diamond Rough (Sawable) 0.428ct Rough Stone with Trigon Sale price¥158,000
Zimbabwe Green Diamond Rough (Sawable) 0.402ct Rough Stone with Trigon

Zimbabwe Green Diamond Rough (Sawable) 0.402ct Rough Stone with Trigon Sale price¥148,000
0.338ct Canadian Green Diamond Rough (Sawable) - With Trigons

0.338ct Canadian Green Diamond Rough (Sawable) - With Trigons Sale price¥128,000
Pt900 アイスブルーダイヤモンド（トリートメント） 0.256ctct ペンダント（ネックレス）

[On Sale 5/26 at 10 PM] Colorful Pt900 Ice Blue Diamond (Treated) 0.256ct / Diamond 0.06ct Pendant (Necklace) Sale price¥98,000
【12560362掲載】ブラウンダイヤモンド 0.989ctルース

Brown Diamond 6.5mm/0.989ct Loose Stone (FANCY DARK ORANGE BROWN, SI-2) Sale price¥98,000
南アフリカ産グリーンダイヤモンド原石（メイカブル） 0.298ctルース

South African green diamond rough (makeable) 0.298ct loose Sale price¥69,800
ブラウンダイヤモンド 0.554ctルース (カボションカット,SIクラス相当)

Brown diamond 0.554ct loose (cabochon cut, SI class equivalent) Sale price¥69,800
イエローダイヤモンド 0.291ctルース(FANCY INTENSE ORANGY YELLOW, SI2)

Yellow diamond 0.291ct loose (FANCY INTENSE ORANGY YELLOW, SI2) Sale price¥59,800
イエローダイヤモンド 4mm/0.261ctルース(LIGHT YELLOW, VS-2, VeryGood)（セミオーダーメイドセット）

[Staff Selection] Yellow Diamond 4mm/0.261ct Loose (LIGHT YELLOW, VS-2, Very Good) (Semi-Custom Made Set) Sale price¥59,800
グリーンダイヤモンド 0.100ctルース(VERY LIGHT GREEN, SI-1)

[On sale July 4th at 10 PM] Green Diamond 0.100ct Loose Stone (VERY LIGHT GREEN, SI-1, Old Cut) Sale price¥39,800
【32501864掲載】ブラウンダイヤモンド 0.531ctルース(FANCY DARK BROWN, SI-2)

Brown Diamond 0.531ct Loose (FANCY DARK BROWN, SI-2) Sale price¥39,800
イエローダイヤモンド 0.190ctルース(FANCY DEEP ORANGY YELLOW, SI2) - KARATZ STORE｜カラッツSTORE

Yellow diamond 0.190ct loose (FANCY DEEP ORANGY YELLOW, SI2) Sale price¥39,800
イエローダイヤモンド 0.153ctルース(FANCY INTENSE YELLOW ORANGE, SI1)

Yellow diamond 0.153ct loose (FANCY INTENSE YELLOW ORANGE, SI1) Sale price¥35,800
フォレストグリーンダイヤモンド（トリートメント） 0.431ctルース(FANCY DARK GRAY GREEN, SI-2)

Forest Green Diamond (Treatment) 0.431ct Loose (FANCY DARK GRAY GREEN, SI-2) Sale price¥35,800
カメレオンダイヤモンド 0.128ctルース(FANCY LIGHT GRAY GREEN, SI-1)

[Sale on May 9, 10 PM JST] Chameleon Diamond 3.2mm/0.128ct Loose Stone (FANCY LIGHT GRAY GREEN, SI-1) Sale price¥31,800
南アフリカ産グリーンダイヤモンド原石（メイカブル） 0.117ctルース

South African green diamond rough (makeable) 0.117ct loose (VS-SI class equivalent) Sale price¥29,800
イエローダイヤモンド（カボションカット） 0.176ctルース

Yellow Diamond (Cabochon Cut) 0.176ct Loose Sale price¥29,800
"PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring with Inspector Design [Tsunemori Akane Model] (Pink Diamond)

"PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring with Inspector Design [Tsunemori Akane Model] (Pink Diamond) Sale priceFrom ¥29,800
カメレオンダイヤモンド 0.079ctルース(FANCY LIGHT GRAY GREEN, SI-1)

Green Diamond, Chameleon Diamond 0.079ct Loose Stone (FANCY LIGHT GRAY GREEN, SI-1) Sale price¥25,800
0.174ct Brown Diamond Loose (FANCY DARK BROWN, SI-2)

0.174ct Brown Diamond Loose (FANCY DARK BROWN, SI-2) Sale price¥25,800
南アフリカ産ダイヤモンド（メイカブル） 0.202ct原石

South African yellow diamond (makeable) 0.202ct rough stone Sale price¥15,800
南アフリカ産ダイヤモンド（メイカブル） 0.159ct原石

South African yellow diamond (makeable) 0.159ct rough stone Sale price¥12,800
[On Sale June 13, 10 PM] [Limited to 2 Stones] Brown Diamond (4mm/0.3ct, with certificate) [Multiple Purchase Discount Available]

[On Sale June 13, 10 PM] [Limited to 2 Stones] Brown Diamond (4mm/0.3ct, with certificate) [Multiple Purchase Discount Available] Sale price¥5,980
《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》 Sale price¥4,980
Ice blue diamond 1.2mm or 2.0mm 1 stone (VS class equivalent, round cut) {Multiple purchase discount available}

Ice blue diamond 1.2mm or 2.0mm 1 stone (VS class equivalent, round cut) {Multiple purchase discount available} Sale priceFrom ¥4,980
グリーンダイヤモンド（トリートメント）1石（約1.3mm)

Green Diamond (Treatment) 1 stone (approx. 1.3mm)《Multiple purchase discount available》 Sale price¥3,580
Sold out 【31500770掲載】ピンクダイヤモンド 0.100ctルース(FANCY INTENSE PURPLE PINK, SI2)

Pink diamond 0.100ct loose (FANCY INTENSE PURPLE PINK, SI2)

Sold out 【31500769掲載】ピンクダイヤモンド 0.109ctルース(FANCY INTENSE PURPLE PINK, SI2)

Pink diamond 0.109ct loose (FANCY INTENSE PURPLE PINK, SI2)

Sold out ピンクダイヤモンド 0.121ctルース(FANCY PURPLE PINK, VS2) - KARATZ STORE｜カラッツSTORE

Pink diamond 0.121ct loose (FANCY PURPLE PINK, VS2)

Sold out ブルーダイヤモンド (スターカット) 0.094ctルース(Treted FANCY INTENSE GREEN BLUE, VS1) - KARATZ STORE｜カラッツSTORE

Blue Diamond (Star Cut) 0.094ct Loose (Treted FANCY INTENSE GREEN BLUE, VS1)

Sold out イエローダイヤモンド 0.092ctルース(FANCY DEEP ORANGY YELLOW, I1) - KARATZ STORE｜カラッツSTORE

Yellow diamond 0.092ct loose (FANCY DEEP ORANGY YELLOW, I1)

Sold out イエローダイヤモンド 0.249ctルース(VERY LIGHT YELLOW, SI1) - KARATZ STORE｜カラッツSTORE

Yellow diamond 0.249ct loose (VERY LIGHT YELLOW, SI1)

Sold out ピンクダイヤモンド 3.0mm/0.110ctルース(FANCY INTENSE PINK, SI2)

Pink Diamond 3.0mm/0.110ct Loose (FANCY INTENSE PINK, SI2)

Sold out 【31500772掲載】ピンクダイヤモンド 0.114ctルース(FANCY VIVID PURPLE PINK, I1)

Vivid pink diamond 0.114ct loose (FANCY VIVID PURPLE PINK, I1)

Sold out Fancy Deep Yellowish Green Diamond (Treatment) 1.570ct Loose (FANCY DEEP YELLOWISH GREEN, VS2) GIA

Fancy Deep Yellowish Green Diamond (Treatment) 1.570ct Loose (FANCY DEEP YELLOWISH GREEN, VS2) GIA
Sold out グリーンダイヤモンド原石（ソーヤブル） 0.666ctルース

Green diamond rough stone (sawable) 0.666ct rough stone

Sold out アイスブルーダイヤモンド 1.021ctルース(FANCY INTENSE BLUE GREEN, I1) - KARATZ STORE｜カラッツSTORE

Ice blue diamond 1.021ct loose (FANCY INTENSE BLUE GREEN, I1, radiant cut)

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.