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Lab-grown diamond (synthetic diamond)

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Sold out Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Light Pink) 1 stone loose (multiple purchase discount available)
Sold out Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Vivid Pink) 1 stone loose (multiple purchase discount available)
Sold out Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Intense Pink) 1 stone loose (multiple purchase discount available)
Sold out 【12/7 22時販売】ラボグロウンダイヤモンド(合成ピンクダイヤモンド)13石ハーフエタニティリングセット(2.0mm)
Sold out 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 INTENSE YELLOW, VVS-2)
Sold out ラボグロウンダイヤモンド(合成ダイヤモンド) 0.633ctルース(FANCY DEEP BLUE, SI1)
Sold out ラボグロウンダイヤモンド(合成ダイヤモンド) 0.598ctルース(FANCY VIVID BLUE, VVS2)
Sold out ラボグロウンダイヤモンド(合成ダイヤモンド) 0.661ctルース(FANCY VIVID BLUE, VS1, Excellent)
Sold out 合成ダイヤモンド(ラボグロウンダイヤモンド)2.6mm/0.071ctルース《HPHT製法》 中宝鑑
Sold out 合成ダイヤモンド(ラボグロウンダイヤモンド) 1.391ctルース
Sold out ラボグロウンダイヤモンド(合成ダイヤモンド) 0.240ctルース(FANCY VIVID BLUE, SI1)
Sold out ラボグロウンダイヤモンド(合成ダイヤモンド) 0.230ctルース(FANCY VIVID BLUE, VS-2)
Sold out ラボグロウンダイヤモンド(合成ダイヤモンド) 0.300ctルース(FANCY VIVID BLUE, VS-2)
Sold out ラボグロウンダイヤモンド(合成ダイヤモンド) 0.280ctルース(FANCY INTENSE PINK, VS-2)
Sold out Lab-grown Blue Diamond (Synthetic Blue Diamond) 0.380ct Loose (FANCY DEEP BLUE, VVS-2)
Sold out ラボグロウンダイヤモンド(合成ダイヤモンド)
Sold out ラボグロウンダイヤモンド(合成ダイヤモンド) 0.380ctルース(E, IF, 3Excellent)
Sold out ラボグロウンダイヤモンド(合成ダイヤモンド) 0.230ctルース(FANCY VIVID YELLOWISH GREEN, VS-1)
Sold out ラボグロウンダイヤモンド(合成ダイヤモンド) 0.790ctルース(FANCY VIVID BLUE, VS-2)
Sold out ラボグロウンダイヤモンド(合成ダイヤモンド) 0.510ctルース(D, VS-1, IDEAL)
Sold out Lab-grown diamond (synthetic diamond) & natural diamond 2 stone set 1.8mm/0.045ct loose (H&C, VS class equivalent)

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.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.