The Japanese have discovered a way to 'culture' the most beautiful fiery, blue Opals. The opal silica structure has almost the same physical and chemical composition as natural Opal but without the water content meaning that it is harder wearing and not so prone to breaking. Cultured opals display fiery blue colours with flashes of green or turquoise which are truly breathtaking!
Gem Type: Polymer stabilised opal.
Colour: Light blue with turquoise flashes.
Clarity: VVS Fine quality.
Treatment: Lab Created AAA Gem Grade.
Specific Gravity: 1.89
Find out more about cultured blue opals here.
Cubic Zirconia is extremely rare in nature but widely synthesized for use as a diamond simulant, hence the name 'CZ diamonds'. They are almost as brilliant as diamonds, have even greater fire and are extremely hard wearing so won't dull or change colour.
Gem Type: Zirconium Oxide (ZrO2)
Clarity: Internally Flawless
Treatment: Lab Created AAA Gem Grade
Hardness: 8.5 (mohs scale)
Specific Gravity: 5.8