Most Champagne diamonds come from the Argyle Mine within the distant East Kimberly area of Western Australia. They’re near the decrease finish of the worth scale compared to different pure fancy diamonds as a result of they’re nonetheless fairly ample. Nevertheless, trade consultants consider that Champagne diamonds will seemingly comply with the identical ‘profitable’ trajectory as Pink diamonds when the world’s largest producer of Champagne diamonds, the Argyle Mine closes in 2018.
Till latest years, Brown diamonds had been solely used for industrial functions. They went from a zero to a 5 billion greenback trade in 5 quick years. Immediately, Champagne diamonds are offered in all places and have gotten the selection of many celebrities. Champagne Diamonds that obtain a excessive readability grade or include pink or orange modifiers are significantly extra invaluable than people who do not.
Characterization of Champagne (Brown) Diamonds
When somebody describes a diamond as being “brown,” they’re referring to the dominant shade seen in that stone. “If you’re wanting via the facet of a refined brown diamond (physique shade), that is known as inherent shade number of a diamond” says Stephen Hofer (Accumulating and Classifying Coloured Diamonds, 1998). Nevertheless he exhibits if you’re wanting on the similar diamond from a birds eye perspective (face up shade), that is known as obvious shade selection diamond price.
Brown diamonds are lovely diamonds and trade writers have made varied makes an attempt to assist the general public perceive the complexity of browns. The Rio Tinto Argyle Mine developed a easy grading scale based mostly on visible comparability (C1, C2, C3, C4, C5, C6, C7). The seven grades are meant to differentiate between completely different (shades) of brown (Hofer, 1998).
This has been an vital step in elevating consciousness and speaking the fantastic thing about brown diamonds, nonetheless, for the avid collector it over simplifies the issue of differentiating brown diamonds (Hofer, 1998).
The issue in grading brown diamonds is that the area of ‘shade’ that defines brown diamonds (the brown shade house) is three-dimensional, extra like a field, which covers a big lightness vary together with appreciable variations in hue and saturation (Hofer, 1998).
Plastic deformation is the explanation for the brownish shade in Champagne (brown) diamonds and it refers to a change within the diamond’s molecular construction. Champagne diamonds include low ranges of nitrogen making them extra vulnerable to this deformation. Nitrogen is an impurity atom that trigger yellow coloring in diamonds.
Pure shade brown diamonds happen in 4 coloured tone quadrants; pale, brilliant, boring and deep. Pale, boring and deep happen in nature extra usually than brilliant. That’s as a result of as browns lighten and saturate i.e. brighten they seem orange or yellow generally even pink or crimson (Hofer, 1998).
As famous above, Champagne diamonds are graded on a scale from C1 to C6. C1 is the lightest color and C6 essentially the most intense. C1 and C2 are gentle champagne, C3 and C4 medium champagne, and C5 and C6 darkish champagne. Diamonds graded C7 exhibit essentially the most intense, deep brown color and are essentially the most uncommon and costly (Argyle: Previous and Current). Darkish brown diamonds that include bigger quantities of orange are known as Cognac.
A pure brown diamond with no secondary shade is extraordinarily uncommon and to seek out one with a certificates stating that it’s pure brown is a particular incidence.
The colour blue with brown creates uncommon results, which don’t regularly happen in nature. However when it does, its florescence can look ‘oily blue’ (and/or inexperienced) (Hofer, 1998). Hofer explains that these are referred to as shade modifiers (1998). Colour modifiers- additionally known as minor, subordinate or secondary hues.