Nowadays, you can purchase almost any color pearl of the rainbow. And yes, pearls do naturally occur in almost every color of the rainbow but that doesn’t mean that all pearls currently on the market got their color naturally.
Most different pearl colors are the result of treatments and dyes. Truth is, certain colored pearls are sometimes pretty rare. Pearl farmers often use treatments to induce certain colors in pearls. So that leads us to the question… What is the rarest pearl color?
Blue pearls.
Blue pearls are known as the rarest pearl color in all of the oceans. Blue pearls, when occurring naturally, carry very high price tags. Here is everything you need to know about the rarest pearl color in all four oceans: