This is a beautful, soft-looking necklace which goes well with light-coloured blouses.The resin rose was from Japan (I got it from Fie Japan 2 years back!) while the pendant on which the rose sits is sterling silver, slightly oxidised. A grey moonstone hangs on the pendant. 
Other materials that form the chain are rose quartz, rainbow moonstone and freshwater pearls.
The picture below shows that these moonstones give out a bluish light from certain angles. This is the beauty of moonstones :)
What you can;t see is that the last part of the chain is formed by sterling silver chain (behind Mr Neck).