Top 5 blue gemstones for your engagement ring

Blue gemstones have become one of the most popular alternatives for engagement rings.

Some believe that they symbolise purity, fidelity and love. From a psychological point of view, blue is associated with knowledge, power and stability.

If you’re considering custom engagement rings in Sydney, here are five stunning blue gemstones you can use.

1. Blue diamond

Natural blue diamonds are among the rarest and most expensive variety of coloured gemstones. They receive their colour through the traces of boron present during their formation.

They have exceptional brilliance and fire as colourless diamonds. Although they’re scratch resistant, they’re not the toughest gemstone. They can break if exposed to harsh conditions or when they hit or fall on hard material like rocks.

If your heart is set on a blue diamond, the most affordable option is to go for a synthetic or treated version of the stone. But still, they’re somehow expensive due to the intensive process required to create them.

2. Blue sapphire

Blue sapphire is one of the most popular blue gemstones for engagement rings because they’re more affordable and easier to find than blue diamonds. They’re made of corundum and becomes blue due to the presence of titanium and iron during their formation.

It’s also durable, resistant to breaking and chipping and can be a great investment. They’re one of the most sought-after gems in the world.

A blue sapphire with purplish tints is more valuable than those with greenish shades.

3. Blue topaz

A pure topaz is colourless and to produce the beautiful blue shade of the stone, it’s treated by heat. They’re a good choice for engagement rings because they’re affordable, durable, and can last for many decades.

London Blue, Sierra Blue and Swiss blue are the most expensive varieties of blue topaz and they’re darker versions of the stone.

4. Aquamarine

Aquamarine is a favourite alternative gemstone for engagement rings due to its unique sea-blue colour. They have beautiful clarity, making them look expensive and they’re also known as a 'lucky stone.'

Aquamarine is a member of the beryl family. They have a vitreous lustre. And when faceted, the light reflects well.

An aquamarine that has a vivid deep blue hue is considered the most valuable variety of the stone.

5. Tanzanite

Tanzanite is very rare and often called as one of the most underrated gemstones in history. They range from light to intense vivid blue and their secondary colour is purple.