Among them are a 8.2-carat blue sapphire ring, set to go for anywhere from $300,000-$500,000, and a 10.95-carat round brilliant-cut diamond set in gold, which will go for somewhere between $40,000 ...

Of course, today's most famous vintage ring owner is arguably the Princess of Wales, whose iconic sapphire and diamond piece dates back to 1981 when Prince Charles purchased it for Princess Diana ...