aquamarine

Aquamarine

Aquamarine is a blue to green-blue variety of precious beryl. Aquamarine is exceptionally hard and has an outstanding glass-like luster. It is most famous for its breathtaking sea-blue colours which can range from light blue to dark blue. Crystals form in large hexagonal prisms. In ancient times, it was believed that sailors wearing aquamarine pendants would be protected from the perils of the sea. The stone symbolized happiness and eternal youth. It was viewed in Christian symbolism to bring moderation and control of passions to its owner. It is a gentle and peaceful gemstone, and it is said to fortify one’s sense of self-esteem.

Stock Sizes: Available in both Faceted and Cabochon
Round: 1mm – 8mm
Oval: 4x3mm – 12x10mm
Octagon: 4x3mm – 14x10mm
Octagon/Radiant: 7x5mm – 10x8mm
Pear: 3x2mm – 12x8mm
Marquise: 4x2mm – 10x5mm
Trillion: 3.5mm – 10mm
Heart: 3mm – 12mm
Triangle: 4mm – 6mm
Hexagon: 4mm
Cushion: 4x3mm – 10x8mm + 4x4mm – 8x8mm
Square (Carre): 2x2mm – 8mm
Square (Princess cut): 1.5mm – 7mm
Baguette: 3x2mm – 10x5mm

A large selection of non-calibrated and specimen stones are also available

Chemical Formula: Be3Al2Si6O18
Crystal Structure: Hexagonal
Colour: Light Blue to Dark Blue, Blue-Green
Hardness: 7.5 to 8.0 on Moh`s scale
Refractive Index: 1.577 to 1.583
Specific Gravity: 2.72
Cleavage: Indistinct

Treatments: Aquamarine is often heat-treated for colour enhancement, but many are untreated. Heating at low temperatures will reduce unwanted green and yellowish tones. Darker shades of Aquamarine are almost always heated, as well as lower quality stones in order to enhance the colour into a favourable blue colour.

Care: Heat exposure is not recommended for Aquamarine, but the colour is stable against light exposure. Aquamarine can be attacked by hydrofluoric acid. Warm soapy water is always a safe cleaning method for Aquamarine. Cleaning by ultrasonic and steam cleaners is usually safe unless the stone has liquid inclusions or fractures. Rarely, Aquamarine might be fracture filled. These stones should only be cleaned with warm soapy water.