From the collection of petit works in the exhibition - "Champagne Diamond & Black Sapphires" is named after the gems which match its feathers. 
 
The monochromatic yellow was deliberate choice, yellow is the lightest and brightest color on the color spectrum. It is the most visible hue to the human eye; it also seems to be lit from within by the way it glows. Spiritually it is related to our sacral chakra, stars, guidance, and more.