Turquoise is a traditional 11th-anniversary gift and is a sky-blue to blue-green colour. Utopian Creation's turquoise is sourced typically from Ammaroo Station in the Northern Territory and Victoria.
Turquoise is a 5-6 on the Mohs scale, making it a softer stone. That is why some ancient civilisations chose to build sculptures using the stone. They are unsuitable as an engagement ring as they are prone to chipping when knocked against hard surfaces.