White gold has been prominent in fine jewelry for over a century with no signs of fading. That's not a trend. That's a track record. For pieces meant to last, the stylistic staying power is part of the argument.
Skilled Craftsmanship
Part of what you're giving when you give Italian jewelry is the result of a training system built to last. Scuole orafe (goldsmith schools) in Vicenza, Arezzo, Valenza, and other districts have formalized goldsmithing education so that traditional techniques remain in active, skilled hands.
Elemental Detail
The choice between 14kt and 18kt depends on preferences and priorities. 18kt carries more gold and reads slightly deeper in color, while 14kt is harder, more resistant to everyday abrasion and remains the standard purity in American fine jewelry.