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Zircon
Article
Zircon Quality Factors

Learn about the factors that make zircon so desirable.

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Turquoise
Article
Turquoise Quality Factors

Typically, turquoise is judged on three basic quality factors: colour, texture and the presence or absence of matrix. Learn more about turquoise and what makes this gem so sought after!

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Tourmaline
Article
Tourmaline Quality Factors

Learn about the factors that make tourmaline so desirable.

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Uniquely cut topaz
Article
Topaz Quality Factors

Learn about the factors that make topaz so desirable.

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Tanzanite
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Tanzanite Quality Factors

Learn about the factors that make tanzanite so desirable.

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Vivid red spinel
Article
Spinel Quality Factors

Learn about the factors that make spinel so desirable.

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Sapphire
Article
Sapphire Quality Factors

Sapphire is one of the big three of coloured gemstones (the other two are ruby and emerald). This durable gemstone captures jewellery buyers with its practicality and aura of romance. Click here to find out more about the factors that make sapphire so desirable!

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Ruby
Article
Ruby Quality Factors

Ruby can command the highest prices of any coloured gemstone. The per-carat prices of fine-quality rubies have been rising consistently, and frequently break auction records. Click here to learn about the factors that make ruby so desirable!

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Peridot
Article
Peridot Quality Factors

Learn about the factors that make peridot so desirable.

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Pearls
Article
Pearl Quality Factors

Learn about the factors that make pearls so desirable.

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