Red coral, the "spirit of the sea", is one of the first gemstones recognized and utilized by mankind. Natural red coral grows extremely slowly, growing 1 inch in 20 years and 1 kg in 300 years.
Red coral, the "spirit of the sea", is one of the first gemstones recognized and utilized by mankind. Natural red coral grows extremely slowly, growing 1 inch in 20 years and 1 kg in 300 years.