diamond

Diamond is the birthstone of April. This gemstone is sometimes called the king of gemstones. It is said to be the hardest gemstone on earth, and its strong shine is exceptionally beautiful. Colorless is the most common, but it comes in a variety of shades including yellow, pink, blue, orange, and green.

Karatz GemMagazine
" diamond "

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Salt and pepper diamond 0.373ct loose

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Salt and pepper diamond 0.366ct loose

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Salt and pepper diamond 0.553ct loose

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Zimbabwean rough diamond (sawable) 0.054ct rough stone

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South African green diamond rough (makeable) 0.311ct loose

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White diamond 0.479ct loose (FANCY WHITE, I-1)

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K18ブルースピネル0.31ct・ローズカットダイヤモンド・アクアマリンリング - カラッツSTORE

K18 Blue Spinel 0.31ct/Rose Cut Diamond/Aquamarine Ring

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Diamond 0.492ct loose (E, SI2)

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Black diamond 3.7mm/0.200ct loose (rose cut)

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Blue diamond 0.070ct loose (LIGHT BLUE, SI1)

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【32501006掲載】ブルーダイヤモンド 0.051ctルース(LIGHT GRAYISH BLUE, SI1)

Blue diamond 0.051ct loose (LIGHT GRAYISH BLUE, SI1)

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Rough diamond (sawable) 0.635ct rough diamond (with trigon)

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Black diamond 1.125ct loose

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Black diamond 0.983ct loose

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Black diamond 0.646ct loose

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Bicolor diamond 0.020ct loose Japanese-German book

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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)

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Diamond 0.411ct loose (F, SI2)

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【カラフリ】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

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Diamond 0.610ct loose (F, SI1, horsehead cut)

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Rough diamond (makeable) 0.727ct rough stone

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Rough diamond (sawable) 0.259ct rough diamond with trigon

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Rough diamond (sawable) 0.251ct rough stone, with trigon

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【カラフリ】Pt900一粒ダイヤモンド1.08ct ペンダントトップ（ネックレストップ） - カラッツSTORE

[Colorful] Pt900 single diamond 1.08ct pendant top (necklace top)

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【カラフリ】Pt900ブルーダイヤモンド0.20ct ペンダントトップ - カラッツSTORE

[Colorful] Pt900 blue diamond 0.20ct pendant top

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Diamond 3.35ct rough stone with medium treasure

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Diamond 5.003ct rough stone

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K18 diamond 0.18ct ring (rose cut)

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Sliced diamond 0.190ct loose (Trapiche diamond)

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【31500773掲載】ピンクダイヤモンド 0.104ctルース(FANCY LIGHT PURPLISH PINK, I1)

Pink diamond 0.104ct loose (FANCY LIGHT PURPLISH PINK, I1)

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【31500767掲載】ピンクダイヤモンド 0.088ctルース(FANCY PURPLE PINK , VS2)

FANCY PURPLE PINK 0.088ct loose (FANCY PURPLE PINK, VS2)

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Pt900ローズカットダイヤモンド0.30ct ハーフエタニティリング - KARATZ STORE｜カラッツSTORE

Pt900 rose cut diamond 0.30ct half eternity ring

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K18PGモルガナイト1.54ct リング - KARATZ STORE｜カラッツSTORE

K18PG morganite 1.54ct diamond ring

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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)

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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)

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ダイヤモンド 0.082ctルース（トリリアントカット） - KARATZ STORE｜カラッツSTORE

Diamond 0.082ct loose (trilliant cut)

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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)

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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)

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Pt900/K18PGピンクダイヤモンド0.048ct リング - KARATZ STORE｜カラッツSTORE

Pt900/K18PG pink diamond 0.048ct ring

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【10/13 22時販売】ファンシーインテンスパープルピンクダイヤモンド 0.021ctルース(FANCY INTENSE PURPLE PINK, SI2) Sale price¥39,800

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ラボグロウンダイヤモンド（合成ダイヤモンド） 0.290ctルース(FANCY VIVID PINK, VS-2)

[On Sale at 10 PM on October 12th] Lab-Grown Diamond (Synthetic Diamond) 0.290ct Loose (FANCY VIVID PINK, VS-2) Sale price¥45,800

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インターナリーフローレスダイヤモンド（H&C） 4.45mm/0.305ctルース(F, IF, 3Excellent H&C) GIA&中宝

[On Sale 10/12 at 10 PM] Internally Flawless Diamond (H&C) 4.45mm/0.305ct Loose (F, IF, 3 Excellent H&C) Sale price¥98,000

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18K Yellow Gold American Oregon Sunstone 0.44ct, Pink Diamond, Orange Spinel Ring Sale price¥158,000

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[12534932] Purple Diamond (Treated) 0.088ct Loose

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Yellow diamond 2.6mm loose (equivalent to VS class) Sale price¥12,800

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South African diamond 0.240ct rough stone

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Yellow Diamond (Cabochon Cut) 0.324ct Loose

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.