I really love the OEC diamond & ruby halo ring I found through a private seller but given the warmth of this particular M, have been looking into a few other stones online. I came across this one at a local jewelery store. It's EGL F-G SI1 although I only see a super tiny inclusion by a prong. The crown isn't as high as mine. Is it possible this isn't an OEC? It's 2.5ct 8.77 x 8.71 x 5.24. Thoughts?