Chunky 1.8ct diamonds band, 18K

This amazing chunky wide band has a stunning 0.80 ct Old European Cut diamond in the center. It is most likely an heirloom diamond set in this newer band with a heart-shaped diamond of 0.35 ct and three dots of 5 points on each side, calculating 1.8 ct of an estimated total! All bezel set and in great condition.
The band is 8mm wide and weighs 11.8 grams of 18K yellow gold. Hallmarked with 750 and a makers mark PG. It's most likely from Swiss with the main diamond being antique and the band and the rest of the diamonds from 1990-2000. 
It's in great vintage condition, with the center diamond being slightly loose in the setting and a bit of the bezel missing from one of the hearts (see 50x magnifying picture), but both still secure.
sz 5.25-5.5 US / 50 EU, a bit resizeable
11.8 grams of 18K
1.8 ct diamonds, estimated
8mm wide
Great vintage condition