This is certainly a very beautiful paperweight to add to your collection.
It was made by the glass maestro at Caithness Glass, Colin Terris (1937 - 2006). This one is called Vision and is CT-752. It is number 274 out of a limited edition of just 750 pieces (closed at No. 478).
This lovely weight has a large egg-shaped air bubble in a lilac tone - which is surrounded by dancing lilac flumes - around the exterior are wavering parallel lines of blue trails - (which forms a square shape when seen from above or below). The internal decoration is simply cased in crystal clear glass.
It is of course in perfect condition with no damages - and measures 3 inches in diameter.