I have been contemplating about purchasing the VCA Vintage 20 motif necklace in Mother-Of-Pearl (MOP). For those of you who owns one or have any particular piece in MOP or have any info. regarding the durability of MOP, can you please share them with me......Is it delicate???? Does it scratch easily??? Does it require special or routine care/cleaning? Will it lose the gorgeous luster/sheen in time??? Will it stain easily (let's say if I accidentally spill coffee, etc...)??? Any info you have would be very much appreciated!