Diamonds are one of the purest forms of carbon, crystallized more than a 100 km beneath the earth’s surface for centuries. They grow under tremendous heat and must be transported to the earth’s surface in less than an hour or two by volcanic activity. In a way, diamonds are snap-frozen. If the journey is too long, the stone may return to its graphite form or carbonaceous gas.
Other atoms, sometimes, get trapped in a diamond during its violent journey to the surface. Nitrogen is the most common and even the tiniest amount causes absorption of blue light that lends the diamond its yellow color. The Argyle diamond, mined in Australia, is an exception because it is actually very pure. The cause of the signature pink color is a work of nature which means more inclusions from other sources than other types of diamonds.
These are brownish or champagne colored stones that adore a variety of diamond changeable pendants set. They are also one of the most affordable varieties, costing a third of the price of a white diamond. The lighter champagne diamonds are more popular as they sparkle more. The intense colored ones are also popular because they are unusual. So demand and supply of such diamonds are balanced.
The naturally occurring blue diamond has a light bluish-grey tint. It is more “steely” colored than sapphire. The Hope Diamond, of course, is the most famous among its peers. It’s steeped in legends of ghastly deaths that befell its owners from guillotining in the French Revolution to the suicide of a Wall Street broker in 1930.
These stones get their shade when they come in contact with radioactive materials like uranium. The radiation stains the diamond’s exterior. The cutter has to be careful not to shave off too much of the surface. A laboratory analysis is required to confirm that the radiation was natural. Buyers beware of your diamond changeable pendants set.
Orange and yellow
Fancy colored diamond changeable pendants set should have more color than Z according to the GIA D-Z grading scale. Yellow diamonds come in a range of shades ranging from amber to greenish yellow. The price is similar to white diamonds and the price increases with the color intensity.
Many diamond connoisseurs describe intense yellow diamonds as “canary”. The burnt orange colored ones are less expensive than pure orange or gold colors.