I played on a 9' Diamond in Nashville that had very light colored rails, and white diamond sights. There was very little contrast, and the diamonds (for banking) were practically invisible. If the rails are light, the sights need to be dark, and vice-versa.
The same table was set up very low. If there is a default for table height, it should be at the upper limit of regulation.
I don't have any complaints about how they play.
The Diamond you played on was more than likely a special order Professional, which means the customer ordered it that way. As far as the height of the playing surface goes, Diamonds are already built 1" higher than a GC, or just about any other table as far as that goes...so you may just be use to tables that have been set higher than standard, but that's adjustable with any of the Professionals or ProAms...so the height of the playing surface of the table you're referring to...would have been a location thing...and not a Diamond problem...because it could have been set higher.

Glen