When diva Mariah Carey invited her jeweler friend, Eric Meier to the opening of her Las Vegas show at Caesars Palace recently, she received a ‘Thank You’ gift that was totally unexpected. She received a set of black diamond earings in an 18 carat gold setting!

Sources from TMZ valued the set of diamond earings at about $4,000 and it could be worth more since it was obtained directly from the jeweler with a decent discount, as Eric owns the jewelry store.