Topaz
Topaz is a versatile gemstone available in a wide range of colours, from the prized golden-orange of imperial topaz to the popular shades of blue topaz. With excellent hardness and brilliance, topaz offers both beauty and durability.
Quick Facts
Colour
Imperial topaz: golden-orange to pinkish-orange.
Hardness
8 on the Mohs scale.
Origins
Imperial topaz: primarily Ouro Preto, Brazil.
Lustre
Vitreous lustre with excellent brilliance and transparency.
What is Topaz?
Topaz is an aluminium silicate mineral that occurs naturally in a range of colours including colourless, yellow, orange, pink, blue, and brown. The most valued variety is imperial topaz, a rich golden-orange to pinkish-orange found primarily in Brazil. The popular blue topaz seen widely in jewellery is almost always produced by treating colourless topaz with irradiation and heat — natural blue topaz is extremely rare. Topaz rates 8 on the Mohs scale, making it one of the hardest gemstones and excellent for any type of jewellery.
Properties
Colour
Imperial topaz: golden-orange to pinkish-orange. Blue topaz: Sky Blue (light), Swiss Blue (medium vivid), London Blue (deep, slightly greyish). Also available in pink (rare natural or treated), colourless, and sherry (brownish-orange).
Hardness
8 on the Mohs scale. Very durable, harder than most coloured gemstones. However, topaz has perfect cleavage in one direction, meaning it can split if struck at exactly the right angle.
Origins
Imperial topaz: primarily Ouro Preto, Brazil. Blue topaz: treated material sourced globally. Pink topaz: Pakistan, Russia. Colourless topaz: Brazil, Sri Lanka, Nigeria.
Lustre
Vitreous lustre with excellent brilliance and transparency. Well-cut topaz displays beautiful light return.
Varieties
Imperial topaz from Brazil is the most prized variety, ranging from golden orange to pinkish-orange with exceptional saturation. Sky Blue topaz is the palest blue, resembling aquamarine. Swiss Blue topaz is a vivid, saturated blue and the most popular variety. London Blue topaz is a deeper, slightly inky blue with sophisticated appeal. Pink topaz is rare in nature but can be produced by treating certain brown or yellow topaz. Mystic topaz has an artificially applied rainbow coating.
History
The name "topaz" likely derives from the ancient Greek name for the island of Zabargad in the Red Sea, though the gems found there were actually peridots — a confusion that persisted for centuries. In medieval times, topaz was believed to heal physical ailments, strengthen the mind, and prevent sudden death. Imperial topaz gets its name from Russian tsars, who claimed exclusive rights to the pink topaz from Ural Mountain mines. During the Art Deco era, large topaz gems were fashionable in bold jewellery designs.
Meaning & Symbolism
Topaz symbolises warmth, abundance, generosity, and strength. Imperial topaz is associated with luxury, good health, and attracting wealth. Blue topaz represents communication, honesty, and calm. It is believed to promote confidence, creativity, and personal power. Topaz is the traditional gemstone for the 4th wedding anniversary.
How to Care for Topaz
Clean topaz with warm soapy water and a soft brush. Safe for ultrasonic cleaning in most cases. The key concern with topaz is its perfect cleavage — avoid striking the stone sharply, particularly on edges or corners, as it can split along the cleavage plane. Store separately from other gemstones. Protect from hard impacts. Despite the cleavage concern, topaz is a durable gemstone for normal wear.
Topaz Jewellery Ideas
Imperial topaz makes a magnificent cocktail ring or pendant in yellow gold, its warm glow creating an autumnal luxury. Swiss Blue topaz is popular for everyday earrings and necklaces — vivid, affordable, and available in large sizes. London Blue topaz offers a sophisticated, deeper blue for those who want something more unusual. Blue topaz and diamond combinations create fresh, accessible fine jewellery. Large topaz stones are readily available, making statement pieces affordable.