"The Bachelor" Engagement Ring Scoop

The Bachelor franchise has something going for it other than manufacturing doomed marriages for the sake of its deluded viewers (including yours truly). It has Neil Lane.

The celebrity designer has bedazzled the ring fingers of many blushing Bachelor brides-to-be and Bachelorettes since the show's inception 800 years ago. (Ok. 15 years ago)

According to StyleList, Lane personally globe-trots with a case of his vintage-inspired diamonds to help the reality show's stars handpick the rings that are part of the dramatic final rose ceremonies.

On the Season 15 finale airing tonight, hunky Texan Brad Womack will either offer single mom Emily Maynard or sultry siren Chantal O'Brien the final rose and the Neil Lane diamond stunner - which in previews appears to be a cushion-cut stone with pave accents.

Lane has bejeweled every celebrity under the sun  - from Jessica Simpson's ruby engagement ring to Reese Witherspoon's emerald earrings at this year's Oscars. But his diamonds are the most drool-worthy - which is why Kay Jewelers offers a line of Neil Lane bridal designs at price points mere mortals can afford.

"My rings used to be aspirational, but now they're attainable", he tells StyleList about the Kay partnership.

A ring from "The Bachelorette" in 2010. Photo courtesy: Neil Lane Archives

As for tonight's lucky lady? No one gets to keep the rock unless the relationship ends in a marriage that lasts longer than two years. So in other words? It's a Neil Lane loaner until she gets a gig on Dancing With The Stars. Stay tuned!