Diamond Open Heart Pendant Necklace (1/4 ct. t.w.) in 14k Gold-Plated Sterling Silver, 16" + 2" extender

Some of the diamonds were dark, and not real

I purchased this item for my birthday with a lot of excitement and initially loved it—except for one issue: it was smaller and shorter than expected. Still, I decided to keep it. Unfortunately, within just a month of occasional wear, one side of the necklace turned black. I’m extremely disappointed, especially considering that even inexpensive costume jewelry has lasted me longer. To make matters worse, the return window has already closed, which only adds to the frustration. I expected better quality for the price and would appreciate if the seller could offer a resolution.