Synthetic Spinelle

Le synthetic spinel is a laboratory gemstone that mimics the properties of natural spinel. It is mainly used in luxury jewellerySynthetic spinel offers an affordable and visually similar alternative to natural gemstones. Synthetic spinel is valued for its durability, clarity and vibrant colours, making it a popular choice for high-end jewellery.

Origin and manufacture of synthetic spinel

Le synthetic spinel is produced in the laboratory by a process called torch melting or Verneuil method. This process, invented by French chemist Auguste Verneuil in the early 20th century, creates high-quality spinel crystals by fusing metal oxides at high temperatures. The alumina and magnesia powder is introduced into an oxyhydrogen flame, where it slowly crystallises to form synthetic spinel crystals.

Physical and chemical properties

Le synthetic spinel shares several properties with natural spinel. It has a hardness of 8 on the Mohs scale, making it highly resistant to scratches and wear. It also has a cubic crystal structure and a density of 3.6 to 4.1 g/cm³. The colours of synthetic spinel can vary from red, blue, green, yellow to colourless, thanks to the addition of various metal oxides during the manufacturing process.

Use in luxury jewellery

Le synthetic spinel is widely used in the luxury jewellery industry because of its attractive appearance and lower cost compared with natural stones. It is often mounted on rings, pendants, bracelets and earrings. World-renowned jewellers value synthetic spinel for its ability to mimic more expensive gemstones such as ruby and sapphire, while offering excellent durability and remarkable brilliance.

Advantages of synthetic spinel

The main advantage of synthetic spinel lies in its affordability. Because it is produced in a laboratory, it is much cheaper than natural spinel, while offering similar visual and physical characteristics. What's more, the absence of inclusions and imperfections often makes synthetic spinel more attractive than its natural counterpart. Finally, choosing synthetic spinel can also be a more ethical option, as it does not involve mining, which is often associated with environmental and social problems.

Frequently asked questions about synthetic spinel

What is the difference between natural and synthetic spinel?

Le natural spinel is a precious stone extracted from mines, while synthetic spinel is manufactured in the laboratory. Although they share the same chemical and physical properties, synthetic spinel is generally more affordable and free of natural inclusions.

Is synthetic spinel as durable as natural spinel?

Yes, the synthetic spinel is just as durable as natural spinel. With a hardness of 8 on the Mohs scale, it is resistant to scratches and wear, making it an excellent choice for everyday jewellery.

How can you recognise a synthetic spinel?

Recognising a synthetic spinel can be difficult without specialised equipment. However, gemologists can use optical tests and spectroscopic analysis to distinguish between synthetic and natural spinels. As a general rule, synthetic spinels are often more perfect and less included than natural spinels.

Is synthetic spinel a good option for engagement rings?

Absolutely, the synthetic spinel is an excellent option for engagement rings thanks to its durability, brilliance and range of colour options. It is an affordable and ethical alternative to natural gemstones.