Need help on the Shiva puzzle!!

[Matt-010]

I got extremely stocked on the Shiva puzzle... I've collected both diamonds to place in Shiva's hands and also got both of her arms down already. I had no problem with putting the first diamond into the left arm, but when i stand in front of the right hand on the other side i don't get the diamond into the ring! When i asked a tip, it's says that i've to put the diamond i've found into the hand of Shiva, but how in #$%% name??? Can anybody please help me with this?

Many thanks!!