Ashley Tisdale got a huge sparkler from fiance Christopher French, and she had a good time flaunting it.

Tisdale showed off the rock that she got at the InStyle Summer Soiree, held poolside at the Mondrian hotel yesterday (Aug. 14) in West Hollywood, Calif.

Aside from an awesome ring, apparently French is just an awesome match for the erstwhile 'High School Musical' starlet.

The couple have been dating since December 2012, when they met through mutual pals -- shortly after Tisdale split from longtime on-again off-again love Scott Speer.

"She is in love with the 'darker, bad boy' types, and him being just that is why she has always been attracted to him," a source told Us Weekly of French. "He is still a gentleman, though. [He] holds out her chair for her, holds the door, etc. but is still edgy, which is why they mesh."

Cute! And based on his choice in fiancees and jewelry, the man's got fine taste.