Product review (4 stars): GE Part Number WB31K10028 GRATE (BLK)
I chose this because my last one is the same part number; but there was a difference.  My last one is flat, but this one is raised, which I couldn't really see in the picture provided by Amazon.  I can use it because It fits correctly in its position, except that the pointers are raised higher than the others I have.  I suppose this is how they are making them nowadays, considering my stove is older than 10 years.
BUT the quality is great and seems to be quite strong.