This 1970s pendant necklace features a vibrant green pear-shaped Colombian emerald, weighing approximately 4.50 carats. The necklace is meticulously hand-crafted in 18kt white gold and set with 143 round brilliant-cut diamonds, totaling about 15 carats. A marquis-cut diamond of roughly 0.85 carats connects the riviera to the pendant, which houses the emerald surrounded by an additional 28 diamonds. This piece offers versatility as both the marquis and emerald can be detached from the riviera for a simpler look. With an estimated total diamond weight of around 17.35 carats, this vintage necklace provides elegance without compromising comfort due to its V-shape ending design that prevents it from turning on your neck.