Gemstone Guide


Morganite

What is morganite?

Morganite, named for world famous financier JP Morgan, is a mineral called beryl. It has a distinct pale pink to orange-pink colour, and has a Brilliance & Refractive Index of 1.58-1.59.

Are there variations of morganite?

Morganite comes in varying shades of pale pink, rose, peach and salmon. 

How hard is morganite?

Morganite is rated as a 7.5-8 on the Mohs Scale of Hardness, where diamond is the hardest of all minerals with a value of 10. Please refer to the chart at the bottom of this page for more information.

How do I care for morganite?

Morganite does need to be cared for, like all gemstones, to ensure its long lasting beauty. Make sure to take care not to scratch your morganite or knock it on hard surfaces. It can be washed with a mild foaming soap and warm water and left to air dry, or be dried with a microfibre cloth. Ultrasonic or steam cleaning is usually safe, but if your gemstone has inclusions or fractures, it’s best to make sure by consulting with your jeweller.

Emerald

What is emerald?

Emerald is a product of the mineral beryl, coloured by chromium or vanadium. Its trademark is its rich green colour.

Are there variations of emerald?

There are many varying colours of emerald, and no two are ever alike. The green colour ranges from yellowish green to blueish green. The intensity of the colour varies from light green to dark green. Choice of colour and its intensity is personal preference, however, the bluish rich green colour is known to be the most desirable. There are also varying amounts of inclusions in emeralds, making each stone very unique from the next. Inclusions are materials that get trapped in the stone during its formation. Inclusions in other stones such as diamonds are considered a flaw, but in emeralds, they add charm and natural beauty. 

How hard is emerald?

Emerald, or beryl, is rated as a 7.5-8 on the Mohs Scale of Hardness.

How do I care for emerald?

Use a microfibre cloth to gently wipe away any dirt or grease. Use a mild soap and warm water to suds up your ring, and rinse it gently in another bowl of warm water. We recommend washing your jewellery in bowls rather than in the sink—because losing a ring down the drain is everyone’s worst nightmare.

Sapphire

What is sapphire?

Sapphire is a mineral called corundum. Corundum comes in various colours, and has a Brilliance & Refractive Index of 1.76-1.77.

Are there variations of sapphire?

Sapphires come in many different colours, the most common being blue, white, yellow, and pink. Within each colour, there are varying shades. Typically, the more intense the colour is, the better quality. In terms of deepness of the shade, medium to dark is the most desirable shade.

How hard is sapphire?

Sapphire is rated as a 7.5-8 on the Mohs Scale of Hardness.

How do I care for sapphire?

You can soak your sapphire for a few minutes in lukewarm water and use mild soap and a soft toothbrush or microfibre cloth to clean the dirt away. It can be air dried or dried with microfibre cloths.

Moonstone

What is moonstone?

Moonstone is composed of two feldspar species, orthoclase and albite. The two species intermingle and as they cool, the two species separate into stacked, alternating layers. When light falls between these thin, flat layers, it scatters in many directions, creating its unmistakable glimmer and lustre. Moonstone has a Brilliance & Refractive Index of 1.52-1.53.

Are there variations of moonstone?

Generally the more transparent and colourless the stone, and more blue the shine, the higher the quality. The cloudier and more opaque the stones are more abundant, and therefore less desirable. 

How hard is moonstone?

Moonstone is rated as a 6-6.5 on the Mohs Scale of Hardness.

How do I care for moonstone?

Moonstone needs to be cared for, like all gemstones, to ensure its long lasting beauty. Make sure to take care not to scratch your moonstone or knock it on hard surfaces. It can be washed with a mild foaming soap and warm water and left to air dry, or be dried with a microfibre cloth. Ultrasonic or steam cleaning is usually safe, but if your gemstone has inclusions or fractures, it’s best to make sure by consulting with your jeweller.

Aquamarine

What is aquamarine?

Aquamarine is a product of the mineral beryl, and is a blue cyan colour. Aquamarine has a Brilliance & Refractive Index of 1.57-1.58.

Are there variations of aquamarine?

Aquamarine comes in varying colours from very pale blue to clear sky blue to greenish blue. Typically richer the colour, more valuable the stone is. 

How hard is aquamarine?

Aquamarine is rated as a 7.5-8 on the Mohs Scale of Hardness.

How do I care for aquamarine?

You can soak your aquamarine for a few minutes in lukewarm water and use mild soap and a soft toothbrush or microfibre cloth to clean the dirt away. It can be air dried or dried with microfibre cloths.

Opal

What is opal?

Opal is the product of rain that has soaked deep into ancient underground rock, carrying dissolved silica. After the evaporation of the water, the solid deposits left over forms opal. Opal has a Brilliance & Refractive Index of 1.37-1.42.

Are there variations of opal?

Opal comes in many different colours from white to black to blue. They all have the same characteristic of having a sheen of rainbow colours due to a similar effect as light travelling through a prism. For engagement rings, semi-transparent white opal with a splash of rainbow has been the most popular choice.

How hard is opal?

Opal is rated as a 5.5-6 on the Mohs Scale of Hardness.

How do I care for opal?

Opal does need to be minded, like all gemstones, to ensure its long lasting beauty. Make sure to take care not to scratch your moonstone or knock it on hard surfaces. It can be washed with a mild foaming soap and warm water and left to air dry, or be dried with a microfibre cloth. Ultrasonic or steam cleaning is usually safe, but if your gemstone has inclusions or fractures, it’s best to make sure by consulting with your jeweller.