Nude Pearlised Effect

Hi All,

We are doing a cake similar to the one attached below which is by the amazing Yummy Cupcakes & Cakes from Australia, and im wondering if anyone has any ideas how to get the nude looking pearlised color of the 2 tier from the top.

I cant seem to work out what lustre dust they would have used to achieve the color.

Any help with be really appreciated, many thanks!

Sejal
U.K.

https://fbcdn-sphotos-b-a.akamaihd.net/hphotos-ak-snc6/229844_10151103277857858_712202908_n.jpg