The prestigious US magazine, Advertising Age, in its January 1999 edition, proclaimed "A Diamond is Forever", the most recognized and effective slogan of the twentieth century. Today, diamond engagement rings are commonplace, but were it not for a single company and its drive to dominate the diamond industry, history would have turned out differently.
That may be a satiric narrative but the subject is dead serious. Blood diamonds are used to fund wars and other brutal activities in certain parts of the world. Diamonds sold in this illicit trade promote violence and kill people; you want to make sure that your own non conflict diamonds.
The following is excerpted from the Federal Trade Commission's "Guides for the Jewelry, Precious Metals, and Pewter Industries" Misuse of the term "blue white."
The impact of fluorescence has long been debated; in the Winter 1997 issue of GIA's Gems & Gemology, William E. Boyajian, President of the Gemological Institute of America, had the following to say on the topic: Opinions of even the most experienced trades people vary widely. With great conviction, some say that blue fluorescence of different strengths typically enhances a diamond's overall appearance. Others, as convincingly, say that it has a negative effect.
The bottom line about fluorescence A D-colored diamond (the highest color) with very strong fluorescence may display a "haze" or "cloudiness" that detracts from the overall luster of the stone. However, diamonds exhibiting fluorescence especially those diamonds with lower colors like I or J may seem more white and give the appearance of being G-color or H-color diamonds. Since the diamond trade still undervalues diamonds with any fluorescence in the colorless color-grades (D through F), customers may obtain a diamond at a relative bargain when buying one with faint or even medium fluorescence. For excellent value in a diamond with no noticeable color to the unaided eye, look for near-colorless grades of G-color through J-color, and a fluorescence grade of medium or strong blue.
That may be a satiric narrative but the subject is dead serious. Blood diamonds are used to fund wars and other brutal activities in certain parts of the world. Diamonds sold in this illicit trade promote violence and kill people; you want to make sure that your own non conflict diamonds.
The following is excerpted from the Federal Trade Commission's "Guides for the Jewelry, Precious Metals, and Pewter Industries" Misuse of the term "blue white."
The impact of fluorescence has long been debated; in the Winter 1997 issue of GIA's Gems & Gemology, William E. Boyajian, President of the Gemological Institute of America, had the following to say on the topic: Opinions of even the most experienced trades people vary widely. With great conviction, some say that blue fluorescence of different strengths typically enhances a diamond's overall appearance. Others, as convincingly, say that it has a negative effect.
The bottom line about fluorescence A D-colored diamond (the highest color) with very strong fluorescence may display a "haze" or "cloudiness" that detracts from the overall luster of the stone. However, diamonds exhibiting fluorescence especially those diamonds with lower colors like I or J may seem more white and give the appearance of being G-color or H-color diamonds. Since the diamond trade still undervalues diamonds with any fluorescence in the colorless color-grades (D through F), customers may obtain a diamond at a relative bargain when buying one with faint or even medium fluorescence. For excellent value in a diamond with no noticeable color to the unaided eye, look for near-colorless grades of G-color through J-color, and a fluorescence grade of medium or strong blue.
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