I was told the most important C in a diamond is the Cut - if it is cut the right way it actually makes a small stone look bigger and sparklier. My ering is an assher and even though it is not big DH made sure it has all the right Cs. I don't know if it looks smaller than another diamond of a different style, personally I'd like my ring to look clear and sparkly, rather than large but dull/white. It has gotten so much compliment in the past few years because of how unique and classy the diamond is. I have it set on an X prong so light can come through from the bottom. I'd say go for it, and pay special attention to the cut and how you set it.