Precious coral grows in rocky seabottoms, typically in dark environments in the depths or in dark caverns. Coral gemstones are composed of hard calcium carbonate, colored by carotenoid pigments. Coral exhibits a range of colors, from warm reddish pink colors to salmon pink, and even deep red to black; White coral is often with slight pinkish hue and some white coral can be the result of color enhancements. Coral belongs to the small and unique group of organic gems, which also includes pearl, mother-of-pearl, amber, petrified wood, ivory and jet.
全体の評価 -> 9
A great selection and size choice of the gems I have been looking for. Very happy with the purchase.
It's pretty great having a whole lot of different gemstones to choose from. When doing crafts and jewelry making, it's great to have all kinds of options, and it's amazing how much cheaper it is to just purchase un-set gemstones and make the setting yourself, as opposed to buying fully-made jewelry already. It's also extra special since you made it yourself.