Here's a guide to key factors affecting the price of red Corals:
1.Color: red Coral comes in a range of hues, but the most valuable ones are deep, saturated shades like "ox blood" red or a lighter "angel skin" pink. Presence of orange undertones or excessive white blemishes can bring down the price.
2.Clarity: red Coral with high clarity and minimal inclusions is more expensive. Stones with visible cracks, fractures, or impurities will be less valuable.
3.Cut: red Coral is typically cabochon cut to best display its color and smooth surface. Well-proportioned and highly polished cabochons are more valuable.
4.Carat Weight: Larger red Corals are rarer and more expensive, but due to its relative scarcity, size has a significant impact on price compared to softer gemstones.
5.Origin: Mediterranean red Coral, traditionally harvested from the Mediterranean Sea, is considered the benchmark for quality. However, red Coral from other locations like Japan or China can also be valuable depending on color and clarity.
6.Certification: A certified red Coral from a reputable gemological institute like the Gemological Institute of America (GIA) adds value and assures authenticity.
7.Sustainability: red Coral is a marine organism and overharvesting is a concern. Stones with documentation of sustainable harvesting practices can fetch a premium price.
8.Treatments: red Coral is sometimes dyed to enhance its color. Undyed, natural stones are generally more valuable. Avoid stones treated with fillers or artificial resins.