After looking through some of the archived threads on diamond cleaning, the general consensus seems to be Sharper Image Ultrasonic cleaning machine and/or the Jewel Jet steam cleaner. However, all those threads are old and SI no longer is in business. I am trying to figure out what to get since the SI ultrasonic is no longer sold. Should I get the Jewel Jet and another ultrasonic machine? Should I get ultrasonic only? If so, which brand/model would you recommend? Should I just use the steam-wand from the espresso machine? This community has been great with educating us newbies on buying the right diamond and giving overall great advice. Some advice here would be appreciated! 