Independent laboratory reports are available for any of these stones...just ask. You can choose the lab; I don't have to. If you want my guidance in getting good value for your money you can ask, but if you already know the labs here and which one you prefer, just let me know that as well.
The very special Welo opal from Ethiopia above, the faceted emerald-shape- weighs 1.04 carats x $66 per carat = $68.64 plus $12 for registered mail with tracking. The opal is 8.79 x 6.42 x 3.88mm deep.
The Welo opal is entirely untreated. It was mined from the earth, cut and polished ONLY. No smoke, no sugar, no resin or wax treatments. No treatment at all. Zip Zilch nothing nada, no treatment.
If you have a question about gemstones- please post here!
~Dave