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    The Zimmi Yellow Diamond

    The term "Zimmi" yellow diamond is more of an insiders' term, used mostly by diamond manufacturers and dealers. It's like a code name. When they use it, they mean to say - "this is no ordinary canary yellow diamond, it's color saturation level doubles that of other vivid yellow diamonds, and thus should be priced much higher".

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    Fancy Red Diamonds - The real blood diamonds

    Red is so rare and pretty that even a tiny glimpse of it within a stone under the right lighting might add to its value tenfold. Scientifically speaking red diamonds are unlike other fancy color diamonds such as pink diamonds, yellow diamonds and blue diamonds all of which contain foreign element impurities (such as Nitrogen or Boron)

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    All about natural fancy color diamonds

    There are many interesting facts to learn about natural fancy color diamonds and their origins. Did you know that a natural red diamond occurs only once in every 500,000 diamonds? Read more >

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    RED DIAM SPONSORS HERMITAGE MUSEUM 250TH ANNIVERSARY GALA EVENT

    Reddiam Ltd is proud to announce it's partnership with Hermitage museum foundation in Israel and will contribute Two memorable diamond jewelry pieces for the gala event held in the Tel Aviv museum of arts. Read more >

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    Four C's

    Four Cs are the most common parameters used to grade a natural diamond. There is a 5th "C" as well - read more inside! Read more >

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    Famous Color Diamonds

    A diamond’s fame can be owed to its size, its beauty and at times its historical provenance - here you can read about legendary diamonds such as the blue hope diamond, the golden jubilee and the Dresden green diamonds. Read more >

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    Another rare blue diamond breaks auction records

    Earlier in 2016 the world famous Oppenheimer Blue diamond set a new world record by closing the auction at stunning $57.8 million selling price at Christie's. Natural fancy blue color diamonds are extremely rare and are considered as unicorn investment assets. In this article we will break down the chronology of auctions leading up to this one. Read more >

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    Natural Green Diamonds

    Natural green diamonds are estimated as the second rarest variety of color diamonds which number only one out of every 10,000 diamonds occurring in nature. Millions of years of naturally occurring radioactivity within the earth lead to the unique color characteristics of natural fancy green diamonds. Read more >

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    The Black Diamond - Black Is Beautiful

    Unlike other fancy color diamonds such as blue, pink and yellow, black diamonds don't get their color characteristics from having a foreign element such as Boron or Nitrogen within the formation of the crystal, but by a large amount of graphite inclusions that are so dominant the diamond appears evenly black and opaque. This phenomenon is quite rare. Read more >