Overstock and Macy's are two great places to find diamond heart earring on sale. Both of these websites offer great prices for high quality merchandise.
Earring materials can be a diamond, but you'll need metal in order to mount the stone so that it can be worn in the ear.
Faje
Take your earring to a certified gemologist who can assess its value for you, based on the individual weight of each diamond. Thirty carats total weight is an extremely valuable amount of diamonds to find in a single earring. (However, if the earring is .30 carats in total weight of diamonds, a jeweler can give you an estimate of the earring's value.)
for sale bracelet silver w/DIAMOND's links are heart shaped
Earring stamp 925ehc diamond encircle by little diamond
Many companies make matching diamond earring and necklace sets, pretty much any jeweler will have several different sets.
They choose the diamond size they want, then set it in the earring mounting, then put them in stores to sell.
Take your earring to a local jeweler who can help you grade and value the diamonds and the metal. S/he can give you a price.
One large heart diamond beneath a small heart diamond means "Love is forever"
I would go back to Zales. If it is the whole earring you will have to buy a new pair, but if it is only the stone you could buy a loose diamond. I would also suggest going to a pawn shop.
They choose the diamond size they want, then set it in the earring mounting, then put them in stores to sell.
Go Well Diamond Heart was created in 2010.