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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
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Sold out 【31500773掲載】ピンクダイヤモンド 0.104ctルース(FANCY LIGHT PURPLISH PINK, I1)
Sold out 【31500767掲載】ピンクダイヤモンド 0.088ctルース(FANCY PURPLE PINK , VS2)
Sold out 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
Sold out K18PGモルガナイト1.54ct リング - KARATZ STORE|カラッツSTORE
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
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
Sold out 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
Sold out 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
Sold out 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
Sold out Pt900/K18PGピンクダイヤモンド0.048ct リング - KARATZ STORE|カラッツSTORE
coming soon 《Shinjuku Pop-Up Event Commemorative Offer》《Limited Stock Remaining》 Color Diamond Set (including pink, ice blue, green diamonds, and more, 9 stones or more in total), valued at ¥30,000 normally. 《Multi-Purchase Discount Available》
coming soon {June Campaign Limited Edition} Rare Stone Gacha💎 Padparadscha Sapphire 0.3ct+ with Certificate, Benitoite, Red Beryl, etc. Loose Stones for 1 Stone {Multiple Purchase Discounts Available}
coming soon ピンクダイヤモンド 0.030ctルース(FANCY PURPLISH PINK, SI-1)
coming soon パープルダイヤモンド 0.048ctルース(FANCY VIVID PINK PURPLE, SI-1)
coming soon 【抽選販売0530_06】インターナリーフローレスダイヤモンド(H&C) 0.527ctルース(E, IF, 3Excellent H&C)
coming soon 【32501932掲載】ダイヤモンド 0.192ctルース(F, VVS-2, VeryGood)
coming soon 【32501930掲載】ブラウンダイヤモンド 0.600ctルース(FANCY LIGHT BROWN, SI-2)
coming soon 【32501929掲載】グレーダイヤモンド 0.064ctルース(LIGHT BLUISH GRAY, SI-1)
coming soon 【32501928掲載】グレーダイヤモンド 0.039ctルース(LIGHT BLUISH GRAY, VS-1)
coming soon 【32501927掲載】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)
coming soon 【32501926掲載】ダイヤモンド 0.172ctルース(G, VS-1)
coming soon Internally Flawless Diamond 0.272ct Loose (D, IF, 3Excellent H&C)
coming soon Internally Flawless Diamond 0.217ct Loose (D, IF, 3Excellent H&C)
coming soon 【32501894掲載】ダイヤモンド 0.095ctルース(F, VS-2, Excellent)
coming soon Flawless Diamond (H&C) 0.280ct Loose Stone (D, FL, 3Excellent H&C)
coming soon Flawless Diamond (H&C) 0.290ct Loose (D, FL, 3Excellent H&C)
Sold out 【32501858掲載】グレーダイヤモンド 0.141ctルース(FANCY GRAY, I-1)
Sold out Gray Diamond 0.200ct Loose (FANCY DARK GRAY, SI-2)
Sold out Gray Diamond 0.079ct Loose (FANCY DARK GRAY, I-1)
Sold out Diamond 0.120ct loose (G, VS2, Excellent H&C)
Sold out White Diamond 6.2mm/0.988ct Loose (FANCY WHITE, I2)
Sold out Internally Flawless Diamond (H&C) 3.8mm/0.210ct Loose (F, IF, 3 Excellent H&C) GIA & Chuho
Sold out ダイヤモンド 0.131ctルース(F, VS-1)
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)
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)
Sold out ダイヤモンド 0.210ct原石
Sold out イエローダイヤモンド(カボションカット) 0.324ctルース
Sold out フローレスダイヤモンド(H&C) 4.2mm/0.276ctルース(D, FL, 3Excellent H&C)
Sold out インターナリーフローレスダイヤモンド(H&C) 0.204ctルース(F, IF, 3Excellent H&C)
Sold out ダイヤモンド原石(ソーヤブル) 0.103ct原石
Sold out フローレスダイヤモンド(H&C) 4.0mm/0.224ctルース(D, FL, 3Excellent H&C) GIA&中宝
Sold out Diamond 3.2mm/0.129ct loose (F, SI-1, EXCELLENT)
Sold out ダイヤモンド 0.215ctルース(ローズカット)
Sold out アイスブルーダイヤモンド 3.0mm/0.090ctルース(Undetermined) GIA
Sold out ブラウンダイヤモンド 0.169ctルース

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.