I have selected a RB diamond with SB fluorescence for a free in-store preview through Ritani. I understand that in some stones the SB fluorescence can cause the diamond to appear cloudy in sunlight. I assume that means I should ask the jeweler to bring it outside with me so I can view it in daylight to see how it actually appears in person? Should I also ask to see how the stone appears under UV light? If so, what should I look for, other than the fact that it will glow blue? Anything else I should look for? My gf and I previous saw a MB fluorescent RB that she liked because she thought it made it appear more "colorless." (Both the stone we saw and I stone I am considering are I color.) She will not be viewing this stone beforehand, as I want it to be a surprise, so any help you can offer to help me ensure the SB fluor is not a negative would be greatly appreciated.