Engagement Ring Modern 2.69 Old European Cut Diamond in PlatinumThis incredible engagement ring is features a gorgeous 2. 69 old European cut diamond as the centerpiece. The center diamond is surrounded by a unique halo of accent diamonds, bordered with milgrain detailing. Open filigree work on the undercarriage allows light to radiate from the center stone for maximum brilliance while adding a unique design element. Additional accent diamonds adorn the shoulder of the ring and lend to the overall brilliance of