* Color: This is the single most important factor.
* Hue: Pure pink is the most desirable, but pink diamonds often have secondary hues like purple, orange, or brown. The closer to a "pure" pink, the higher the value.
* Saturation (Intensity): Pink diamonds are graded on a scale of color intensity:
* Faint Pink
* Very Light Pink
* Light Pink
* Fancy Light Pink
* Fancy Pink
* Fancy Intense Pink
* Fancy Vivid Pink
* Fancy Deep Pink
* The more intense the color (e.g., Fancy Vivid Pink), the exponentially higher the price.
* Tone: Tone refers to the lightness or darkness of the diamond's color. Medium tones are often considered the most desirable for pink diamonds.
* Carat Weight: Larger pink diamonds are much rarer, so the price per carat increases dramatically with size. A 1-carat Fancy Pink diamond will be significantly more expensive per carat than a 0.5-carat Fancy Pink diamond.
* Clarity: While color is paramount, clarity still plays a role. Inclusions (internal flaws) and blemishes (surface flaws) can affect a diamond's brilliance and value. The clarity scale ranges from Flawless (FL) to Included (I3). Higher clarity grades (FL, IF, VVS1, VVS2, VS1, VS2) are generally more valuable.
* Cut: The cut of a diamond affects its brilliance, fire, and scintillation. While the "ideal" cut for a white diamond is well-defined, for colored diamonds, cutters often prioritize maximizing color intensity over achieving the perfectly proportioned cut. However, a well-cut pink diamond will still be more valuable.
* Shape: While round brilliant cuts are common for white diamonds, fancy shapes (e.g., oval, cushion, radiant, pear) are often used for pink diamonds to enhance their color. The shape preference can influence the price.
* Origin: While most pink diamonds come from the Argyle mine in Western Australia (which is now closed), this mine was known for producing some of the world's most vibrant and valuable pink diamonds. Diamonds from Argyle often command a premium, especially those with Argyle certification. The closure of the Argyle mine has significantly increased the value of existing pink diamonds.
* Certification: A reputable gemological laboratory like the Gemological Institute of America (GIA) or Argyle provides a certificate that verifies the diamond's characteristics (color, clarity, cut, carat weight). This certification is crucial for establishing the diamond's authenticity and value.
General Price Ranges (Keep in Mind These are Broad Estimates):
* Faint Pink to Light Pink: Starting around $10,000 to $50,000+ per carat.
* Fancy Pink: $50,000 to $100,000+ per carat.
* Fancy Intense Pink: $100,000 to $500,000+ per carat.
* Fancy Vivid Pink: $500,000 to *millions* of dollars per carat.
Important Considerations:
* The closure of the Argyle mine has dramatically increased prices. Expect to pay a premium, especially for Argyle-certified pink diamonds.
* Market conditions fluctuate. Supply and demand can impact prices.
* Rare and exceptional pink diamonds can fetch record-breaking prices at auction. These are usually the largest, most intensely colored, and flawlessly clear stones.
* It's essential to work with a reputable jeweler or diamond dealer specializing in colored diamonds. They can provide expert guidance and ensure you are getting a fair price.
In conclusion, determining the worth of a pink diamond requires careful evaluation by a qualified gemologist or appraiser who can assess all the factors mentioned above. The price can range from tens of thousands to millions of dollars per carat, depending on the specific characteristics of the stone.