Where do you start seeing color in diamonds? Can you see the difference between F and H color? Can you see the difference between D and E color? In full context those answers will become diamond-specific.
Impressions and reactions from IGI Worldwide
Rob Bates is a highly regarded diamond and jewelry industry journalist. Now, drawing on his wealth of knowledge and experience involving the worldwide trade of gemstones and jewelry, Rob has created a fun, fictional work... A mystery novel entitled "A Murder Is Forever."
Today we turn our attention to the optical phenomenon of iridescence, that is the display of dispersive prismatic colors caused by the interference of light - generally due to thin films of gas or liquid - like Iridescent Quartz, Iridescent Agate and Ammolite.
IGI has provided insight and advice to diamond, gem and jewelry industry professionals in tandem with JCK Online's sponsored-content initiative: "Solving New Trends in the New Normal" addresses explosive growth in two disruptive industry areas.
Another independent analysis has concluded that IGI's loose diamond grading ranks among the world's strictest. In an independent comparison of dual-certified diamonds IGI's color grading was stricter than that of GIA in a majority of cases, with clarity the same or stricter in most cases, as well.
USA jewelry sales are climbing. Signet Jewelers, the parent of Kay and Jared, saw sales rise at the end of the last quarter and continue to climb in August. Tiffany & company reported the same trend. And diamond jewelry was one of the top product categories at both Macy's and Bloomingdale's during the quarter ending August 1.
An exceptionally rare, clear diamond "the size of a lollipop" is being offered without reserve at auction by Sotheby's. According to the auction house, an item of this historic importance and value has never been offered with no-reserve before.
No matter if I am Black, Crystal, White, Fire, Water or in a Matrix, depending on the basic color and in a decreasing progression of red, violet, orange, yellow, green, blue, indigo... The title of Noble Opal is the one that I deserved and I still deserve.