Bachelor Pad bling!

When it came time to pop the question to Bachelor Pad love Blakely Shea Jones -- in front of a live studio audience, as well as thousands of viewers at home -- Tony Pieper opted for a stunning sparkler designed by Hollywood fave Neil Lane.

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Wetpaint shared exclusive details Tuesday about the approximately 3.5 carat bauble, worth "at least $100,000."

"This is a gorgeous ring," a diamond expert told the site. "It's very substantial. The main stone is a square cut, with a pave border and a double pave band. All in all, there's about 3.5 carats of diamonds. Given its size and the fact that it's a Neil Lane ring, I'd say it's worth at least $100,000. Maybe a little more."

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About a week before the finale taped, "Tony was very quietly flown out to LA," a show insider tells Wetpaint about Pieper's top-secret shopping excursion. "He met with Neil so he could pick the ring out personally."

His efforts certainly paid off during Monday night's dramatic finale -- Jones said yes!

This article originally appeared on Bachelor Pad: See Blakely Shea Jones' Stunning $100,000 Engagement Ring!