Ladies, I own and have done extensive due diligence on grad A jadeite imperial jade bangles. It's my latest obsession. First off, the best quality jade bangles are worth upwards of 40K, gag inducing ones cost up to 250k. Therefore if the bangle you are eyeing cost less, and you want only the best and not a run of the mill, could be found everywherelse, move on. A few facts: imperial grade A jadeite jade has 7-8 hardness on the moh's scale, therefore, should not break easily. Make sure bangle fits your wrist perfectly. Bangles with flat interior are best in my opinion. Yes, they must be tight enough that you will need vaseline to put them on. To determine what size fits you, measure length in mm width from center of pinkie knuckle to center of forefingler knuckle. Bangle must never have any brown spots and MUST be translucent and flawlessly smooth to the touch. If you still want one, go to webite of any 5-star hotel in Hongkong to find a boutique. Hope this helps.