* A 1.71-carat heart-shaped fancy red diamond with SI2 clarity surrounded by white diamonds and mounted on an 18k white and pink gold pendant for a necklace. Its estimate is $2.5 million - $3.5 ...

Combined, their high estimate is $18.5 million. The first is a 5.04-carat fancy vivid blue heart modified brilliant-cut diamond. The gem has a VS2 clarity grade, according to its lab report.

On Friday, the business organization is launching Kansas City’s branding effort with the KC heart logo popularized in recent years by Charlie Hustle, the local vintage T-shirt maker.