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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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Pink Diamond 0.137ct Loose (FANCY DEEP BROWNISH PINK, I-1)

Pink Diamond 0.137ct Loose (FANCY DEEP BROWNISH PINK, I-1) Sale price¥29,800
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
Brown Diamond 5.2mm/0.561ct Loose (FANCY DARK BROWN, SI2)

Brown Diamond 5.2mm/0.561ct Loose (FANCY DARK BROWN, SI2) 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
ピンクダイヤモンド（トリートメント） 0.095ctルース(FANCY PURPLISH PURPLISH PINK, SI1)

Pink Diamond (Treated) 0.095ct Loose (FANCY VIVID PURPLISH PINK, SI1) Sale price¥26,800
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
イエローダイヤモンド（カボションカット） 0.185ctルース

Yellow Diamond (Cabochon Cut) 0.185ct Loose Sale price¥25,800
イエローダイヤモンド 0.071ctルース(FANCY INTENSE ORANGEY YELLOW, SI2)

Fancy intense orangey yellow diamond 0.071ct loose stone (FANCY INTENSE ORANGEY YELLOW, SI2) Sale price¥22,800
【32501908掲載】ブラウンダイヤモンド 0.290ctルース(FANCY BROWN, SI-2)

Loose Brown Diamond 0.290ct (FANCY BROWN, SI-2) Sale price¥15,800
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
《Limited to 2 Stones》Brown Diamond (4mm/0.3ct, with Certificate of Authenticity)《Multiple Purchase Discount Available》

《Limited to 2 Stones》Brown Diamond (4mm/0.3ct, with Certificate of Authenticity)《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
[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¥2,580
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
coming soon [Lottery Sale 0829] Blue Diamond 0.064ct Loose Stone (FANCY LIGHT GREEN BLUE, VS-1)

[Lottery Sale 0829] Blue Diamond 0.064ct Loose Stone (FANCY LIGHT GREEN BLUE, VS-1) Sale price¥298,000
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)

Sold out アイスブルーダイヤモンド 1.008ctルース(FANCY INTENSE GREENISH BLUE, I1)

Ice blue diamond 1.008ct loose (FANCY INTENSE GREENISH BLUE, I1, heart shape)

Sold out パープルダイヤモンド 0.170ctルース(FANCY PINK PURPLE, SI2) GIA付 - KARATZ STORE｜カラッツSTORE

Purple diamond 0.170ct loose (FANCY PINK PURPLE, SI2) with GIA

Sold out ピンクダイヤモンド（クッションカット） 0.157ctルース(FANCY DEEP PUPPLE PINK, I1)

Pink Diamond (Cushion Cut) 0.157ct Loose (FANCY DEEP PURPLISH PINK, I1)

Sold out K18 Orange Sapphire 1.980ct Pink Diamond Ring DGL Appraisal

K18 Orange Sapphire 1.980ct Pink Diamond Ring DGL Appraisal

Sold out K18WGグリーンダイヤモンド0.23ct リング 日独鑑 - カラッツSTORE

[Colorful] K18WG Green Diamond 0.23ct Ring Japanese-German Edition

Sold out 【12552511掲載】ピンクダイヤモンド 0.296ctルース

Pink Diamond 0.296ct Loose (Cabochon Cut) Certificate of Authenticity
Sold out 【12554800掲載】アンゴラ産グリーンダイヤモンド原石（ソーヤブル） 0.524ct原石

Angola Green Diamond Rough (Sawable) 0.524ct Rough (Trigon)

Sold out アンゴラ産グリーンダイヤモンド原石（ソーヤブル） 0.525ct原石

Angola Green Diamond Rough (Sawable) 0.525ct Rough
Sold out ピンクダイヤモンド 0.060ctルース(FANCY INTENSE PINK, VS-2)

Pink Diamond 0.060ct Loose (FANCY INTENSE PINK, VS-2) CBT

Sold out アンゴラ産グリーンダイヤモンド原石（ソーヤブル） 0.491ct原石（トライゴン）

Angola Green Diamond Rough (Sawable) 0.491ct Rough (Trigon)
Sold out 【31500771掲載】ピンクダイヤモンド 0.137ctルース(FANCY DEEP PURPLISH PINK, SI1)

Pink diamond 0.137ct loose (FANCY DEEP PURPLISH PINK, SI1)

Sold out 【32501905掲載】ブルーダイヤモンド（トリートメント） 0.801ctルース(FANCY INTENSE GREEN BLUE, SI-2)

Sky Blue Diamond (Treated) 0.801ct Loose Stone (FANCY INTENSE GREEN BLUE, SI-2) Certificate

Sold out Pt950 アイスブルーダイヤモンド リング

Pt950 Ice Blue Diamond Ring
Sold out K18YG アメリカ産オレゴンサンストーン 0.44ct・ピンクダイヤモンド・オレンジスピネル リング

18K Yellow Gold American Oregon Sunstone 0.44ct, Pink Diamond, Orange Spinel Ring
Sold out ブラジル産パライバトルマリン・サンタマリアアクアマリン・アイスブルーダイヤモンド・タンザナイト１３石ハーフエタニティリングセット（2.0mm)

Brazilian Paraiba tourmaline, Santa Maria aquamarine, ice blue diamond, and 13-stone tanzanite half eternity ring set (2.0mm)

Sold out ブルーダイヤモンド 0.070ctルース(LIGHT BLUE, SI1)

Blue diamond 0.070ct loose (LIGHT BLUE, SI1)

Sold out Pt900ベニトアイト0.17ct・ピンクダイヤモンドリング

Pt900 Benitoite (Ice Blue) 0.17ct Pink Diamond Ring
Sold out Pt950 ピンクダイヤモンド 0.058ct（FANCY INTENSE PURPLE PINK）・ダイヤモンド0.11ctリング 中宝ソーティング

[Lottery Sale 0812_09] Pt950 Pink Diamond 0.058ct (FANCY INTENSE PURPLE PINK) / Diamond 0.11ct Ring, with Central Gem Lab Sorting

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.