natural color colour diamond encyclopedia encyclopædia naturel naturelle diamant couleur encyclopédie natural color diamond fancy color diamond color diamond encyclopedia sectionmedia stephane aisinber vivid purple pink brilliant intense pink hexagon intense pink radiant brownish pink pear shape light brown cushion chocolat brown brilliant deep reddish brown pear shape olive green emerald grayish-yellow oval deep orange brilliant brownish-yellow heart shape intense orange oval vivid yellow triangle vivid orange yellow marquise yellow cushion olive green brilliant intense yellow pear shape deep yellow triangle deep olive green marquise olive brown cushion grayish olive oval intense greenish yellow princess yellowish green bishops hat intense yellowish green radiant vivid green blue oval grey blue pear shape grey brilliant intense blue Asscher cut deep blue oval

Natural color and treated color In light of the growing interest in color diamonds it is important to clear the confusion between treated or synthetic diamonds on the one hand, and natural color diamonds on the other. Technological developments now allow us to create diamonds of almost any color, either completely artificially or from natural diamonds whose color is unattractive (not clearly defined, yellowish, brownish etc). Such stones can be manufactured at will, resulting in the production of goods that are the exact contrary of what they are substituting for: diamonds by definition are unique, rare, and exceptional. A natural color diamond is unique. It is a product of nature, shaped by millions of years of crystallization. Its color is the product of chance and no two natural color diamonds can be identical: it is this uniqueness, this rareness that gives them all their value. Natural and treated color diamonds are two completely different products that operate on two completely different markets. The intrinsic value and the price of each of these cannot even begin to be compared. And the confusion which now exists - and some would say is willfully created by some manufacturers of treated diamonds - is dangerous since it will impact on consumer confidence. Natural color diamonds are to be considered like any authentic work of art - a painting by a Master, an ancient sculpture, a signed piece of furniture, etc. Treated or synthetic diamonds are only pale imitations, created by the thousands and sold at low cost - just as is the case for copied works of art.                    Natural color diamonds are a stable investment whose value has only increased over the past 25 years. Treated or synthetic diamonds on the other hand only have long-term setbacks : - They may be cheaper to buy, however their resale value is almost zero; - No serious auction house would accept to put such stones up for sale and no serious buyer would want them; - Colors obtained through treatment are not stable and can change with time - the long-term effects of such treatments are not well known. It is therefore indispensable, before purchasing a color diamond, to obtain a guarantee from the seller - or a certificate from an approved laboratory - stating the origin of the stone, and certifying the natural origin of its color.