Natural opals vs Synthetic lab opals - spot the difference - what to look for?

Natural opals vs Synthetic lab opals - spot the difference - what to look for?

Natural opals are prized for their rarity and beauty that makes it a high end jewellery gem, while synthetic opals are a more affordable alternative for costume or entry level jewellery. When purchasing an opal, it is important to know the difference between natural and synthetic opals.
David van Niekerk
Opal Jewelry -- Your Own Personal Piece of Rainbow

Opal Jewelry -- Your Own Personal Piece of Rainbow

Opal is a magnificent gemstone whose shades encompass virtually every hue in the color spectrum. The play of color is different on every stone, and its shimmering hues gave rise to the word ‘opalescent.’ Because it is such an entrancing and unique gemstone, it is no wonder that opal jewelry is very popular among collectors and fashion enthusiasts.
David van Niekerk
Australian Opal colour Patterns and how they form

Australian Opal colour Patterns and how they form

I would like to have a closer look at the beauty of Australian Opals and specifically how they show different colours and patterns. Opal is a basically Hydrated Silica that...
David van Niekerk