A fabulous 9ct yellow gold ring with an emerald cut deep "Swiss blue" topaz, which has been set in a 4-claw setting. The topaz is an emerald cut measuring 14mm by 12mm. The Swiss blue colour is achieved by heat treatment. This treatment is stable and so the colour will not change. Topaz is a hard gemstone at number 8 on the Mohs hardness scale, making it very durable. The Mohs hardness scale has diamond at 10 and talc as number one. It is an exponential scale as diamond is the hardest mineral on earth.
Designed and made in Australia.
Swiss blue topaz: 14mm x 12mm
Weighs: 6.8 grams