Skip to content

colorless diamond

Colorless diamonds are a classic engagement ring.
It shines strongly in the light and has an exceptional beauty.
Diamonds are usually said to have a pale yellow or brown tinge, but the closer they are to colorless, the more valuable they are.
Evaluations are mainly based on global value standards called the 4Cs.
Diamond is the birthstone for April.

Sort by

Sold out Internally Flawless Diamond 3.7mm/0.200ct Loose (E, IF, 3Excellent H&C) GIA & Chuho
Sold out ダイヤモンド 2.7mm/0.074ctルース(E, SI2,特殊カット)
Sold out マクルダイヤモンド(トライゴン有) 0.149ctルース
Sold out マクルダイヤモンド(トライゴン有) 0.126ctルース
Sold out ホワイトダイヤモンド 0.479ctルース(FANCY WHITE, I-1)
Sold out ダイヤモンド 0.492ctルース(E, SI2)
Sold out バイカラーダイヤモンド 0.020ctルース 日独鑑
Sold out ダイヤモンド 0.411ctルース(F, SI2)
Sold out ダイヤモンド 0.610ctルース(F, SI1, ホースヘッドカット)
Sold out 【12523514掲載】ダイヤモンド 0.190ctルース
Sold out Diamond 0.777ct loose (butterfly cut)
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 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 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 ダイヤモンド 0.215ctルース(ローズカット)
Sold out インターナリーフローレスダイヤモンド 4mm/0.240ctルース(E, IF)  GIA
Sold out ダイヤモンド 0.200ctルース(E, IF)
Sold out ダイヤモンド 0.206ctルース(H, VVS1, 3Excellent H&C ハート&キューピッド)
Sold out K18ダイヤモンド1.0ctピアス
Sold out 【32500872掲載】ダイヤモンド 0.330ctルース(J, IF, Excellent)
Sold out ダイヤモンド 1.261ctルース(D, SI1) - KARATZ STORE|カラッツSTORE
Sold out K18レモンクォーツ9.791ct ・ダイヤモンドペンダント(甲州貴石切子) - KARATZ STORE|カラッツSTORE
Sold out ダイヤモンド 0.309ctルース(D, VVS-1, 3Excellent)
Sold out フローレスダイヤモンド(H&C) 0.230ctルース(D, FL, 3Excellent H&C)

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.