Credit: Kevin Winter/Getty Images; Kathy Hutchins/Hutchins

Big bling!

One month after Ginnifer Goodwin's beau, Joey Kern, popped the question, the Big Love actress, 32, flashed her approximately two-and-a-half carat engagement bauble at the HBO hit's season five premiere Wednesday.

"It's one of the most modern platinum settings that we've seen in Hollywood lately," Jewelry and style expert Michael O'Connor tells of the sparkler, which he estimates at $40,000. "The square cut diamond, is set into a sleek platinum mounting with channel set diamond shoulders in an angular, architectural style. Since the diamonds are set in platinum, this ring will become a heirloom piece!"

Luckily for Goodwin, her actor boyfriend, 34, makes her feel equally exceptional.

"I'm a hopeless romantic," the star recently gushed to Health. "When I'm in a healthy relationship, I'm more secure, I'm more alive, I'm more challenged, I'm"