"The scrolling rope-style sides provide a vintage element, but the blackened platinum gives this style a modern twist," jewelry expert Michael O'Connor tells Us Weekly, adding that the center diamond (either radiant- or princess-cut) weighs in at at an impressive six carats.
O'Connor estimates the price tag for the jewel is approximately $130,000!
A source recently told Us that the couple, who dated on-and-off for nearly five years, plan to tie the knot this year. "The big day's this summer at a private estate," the source said. "Monique Lhuillier is [Jessica's] No. 1 choice for the dress."