More than any other gem, each opal is distinctly an individual. No other stone has as rich and varied a folklore. Opals are also the most delicate gems commonly worn. They require special care to ensure their health and longevity.
Opal's fire was long thought to be the result of iridescence. However, with the advent of scanning electron microscopes, we now know that it is a result of diffraction.
Opal is relatively soft, with a rating of 5.5-6.5 on the Mohs scale. Despite its frequent use in rings, opal is a poor choice for a ring stone; it is much better suited to earrings, pins, and pendants.
Major suppliers include Australia, Brazil, Mexico, and the US. Values are normally determined by the presence and nature of color flashes.
Comentarios certificados de los clientes
Calificación General -> 8
I ordered my gems off this website called GemSelect, they have a good selection and it's easy to navigate. You can also have the gems professionally certified when you buy them, but they do provide certificates of their own.
Good experience with finding a variety of stones. Due to the vast selection, it is important to be able to search, and I had issues with the site not returning matches when I put in a specific size range. I was eventually able to narrow it down by sorting the items by size, but it was slower than if I could have typed it in. I also wish Gem Select would offer lab created stones (fully disclosed, of course!) so I could get some exotic colors more frequently. Overall, I love browsing and will continue to patronize, but this would put the site as my #1 go to.
I have been browsing stones on GemSelect for a few months. They have such a large selection and I found some stones I had never even hear of before visiting GemSelect! I cannot wait to receive my order and show my gems off!