Individual opals are as diverse as snowflakes or fingerprints and can vary widely in appearance and quality. Learn about the factors that make opals so desirable!
Read MoreTypically, 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!
Read MoreLearn about the factors that make tourmaline so desirable.
Read MoreLearn about the factors that make tanzanite so desirable.
Read MoreSapphire 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!
Read MoreRuby 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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