Identifying Lab-Created Opals: Tips for the Informed Buyer
Opals, with their mesmerizing play of colors, are one of the most sought-after gemstones in the jewelry industry. However, not all opals are naturally formed beneath the Earth’s surface. In recent years, lab-created opals have gained popularity due to their affordability and consistency. As an informed buyer, it is essential to know how to identify lab-created opals and distinguish them from their natural counterparts. In this comprehensive guide, we will explore the characteristics of lab-created opals, the differences between natural and lab-created opals, and tips to help you make an informed purchasing decision.
What are Lab-Created Opals?
Lab-created opals, also known as synthetic or man-made opals, are created in laboratories using a process that replicates the natural formation of opals. These opals have similar physical and chemical properties as natural opals, including the mesmerizing play of colors opals are known for. However, they are produced in controlled environments under specific conditions, resulting in a more consistent appearance and quality.
Physical Characteristics of Lab-Created Opals
Lab-created opals exhibit a few distinct physical characteristics that can help you identify them:
- Uniformity: Lab-created opals often display a higher level of uniformity in color and pattern compared to natural opals.
- Perfectly Symmetrical Patterns: The play of colors in lab-created opals may appear more regular and symmetrical, lacking the irregularities and “fire” seen in natural opals.
- Fluorescence: Under ultraviolet light, lab-created opals may exhibit a stronger fluorescence compared to natural opals.
Differences in Composition
While lab-created opals closely resemble their natural counterparts, there are some differences in their composition:
- Water Content: Natural opals contain water, while lab-created opals have a lower water content or are entirely water-free.
- Inclusion-Free: Lab-created opals are often free from inclusions, which are common in natural opals.
- Density: Lab-created opals may have a higher density due to the absence of water.
Identifying Lab-Created Opals with Tools
Several tools can assist you in identifying lab-created opals:
- Loupe: Examine the opal under a loupe to check for any irregularities or visible signs of synthetic production.
- Ultraviolet Light: Natural opals may exhibit a stronger play of colors under ultraviolet light compared to lab-created opals.
- Dichroscope: Use a dichroscope to observe the opal’s pleochroism, which can differ between natural and lab-created opals.
Price Differences
Lab-created opals are generally more affordable than natural opals. This price difference is primarily due to the controlled production process and the higher availability of lab-created opals. However, the value of natural opals lies in their rarity and unique characteristics, making them more desirable for collectors and enthusiasts.
Making an Informed Decision
When purchasing opals, it is essential to consider your personal preferences, budget, and the intended use of the gemstone. If you value consistency, a wide range of colors, and affordability, lab-created opals may be the right choice for you. On the other hand, if rarity, individuality, and natural beauty are your priorities, investing in natural opals would be more fitting.
Conclusion
Now that you are equipped with valuable knowledge about lab-created opals, you can confidently navigate the market and make an informed purchasing decision. Remember to consider the physical characteristics, composition, and tools that can help you identify lab-created opals. Penultimately, the choice between lab-created and natural opals boils down to your personal preferences and the story you want your jewelry to tell. Explore our website further to discover more insightful articles that will guide you through the fascinating world of jewelry and gemstones.