OZBARGAIN
As each opal colour and pattern is unique and no two stones are alike, the opal you purchase will vary from the pictures shown here.
Natural Australian Opal Gemstone: Solid Opal
Opal Size: 3.5 mm (diameter)
Pendant Size: 15 mm (Length) by 27 mm (Width)
Necklace Length: approximately 390 mm with a 55 mm adjustable extension chain
Base: 925 Sterling Silver
Plating: 18K Rose Gold Plating
More options on official website
Australian Made
1 year international warranty.
I'm having difficulty in valuing this over $30.