hello Dave - welcome to the GMB. Regrettably, I've never owned a piece of Orrefors Ariel - so can't speak from personal experience, but …..
I think one of the prerequisites of this technique is the bubbles within the glass to give the sparkle and design element, which is then overlaid with clear glass.
To quote Leslie Jackson - '20th Century Factory Glass' - "Ariel involved sandblasting a pattern in deep relief on to a clear or multi-coloured blank, so that when the vessel was re-heated and cased, the design was captured in trails of air'.
If there is an absence of bubbles within your glass, and a lack of clear overlay, then IMHO this is not a piece of Ariel.
Genuine pieces of Swedish Ariel would command substantial prices - what was the origin of this one.

Always better if your pix are posted from your own library direct, rather than an external host - are you able to upload from your pc direct?
Regret I've no idea as to an id for this piece - hopefully someone else might have more information.