One of the main features of this Princess Isabella guitar is the special velvet that has a crocodile skin-like texture. The inlay is made of 18k white gold and contains 7 flawless and perfectly white brilliant cut diamonds. For the pot knobs, I wanted gemstones that matched the color of the fabric and its reflection. After a long search at various gemstone dealers I found two brilliant cut 6mm Paraiba tourmalines that fit the fabric's color perfectly. The hardware has been finished in "Scratchy 18K White Gold" to perfectly match the appearance of the entire instrument.