Choosing a diamond is a special experience, and today's market offers more options than ever. At Elray Jewellers, we want you to make an informed decision when it comes to rings, engagement rings, and earrings. Here's a look at the key differences between lab-grown and mined diamonds.
The Creation Process
Mined diamonds are a geological marvel, forming deep within the Earth's mantle over billions of years under immense heat and pressure. They are then brought to the surface through volcanic eruptions.
Lab-grown diamonds, on the other hand, are created in a controlled laboratory environment. Scientists use advanced technology to mimic the natural process. There are two primary methods:
High-Pressure, High-Temperature (HPHT): This method replicates the intense conditions found in the Earth's mantle.
Chemical Vapour Deposition (CVD): This technique involves a vacuum chamber where carbon-rich gas forms layers on a diamond seed.
Both processes produce diamonds with the exact same atomic structure and optical properties as their mined counterparts.
Cost and Value
One of the most significant differences is the price. Lab-grown diamonds are typically 30-50% less expensive than mined diamonds of comparable size and quality. This is because the supply chain for lab-grown diamonds is shorter and more efficient, without the extensive costs associated with mining, transportation, and distribution. This allows customers to purchase a larger or higher-quality stone for the same budget, especially when looking for stunning engagement rings or diamond earrings.
The Grading and Quality
Both lab-grown and mined diamonds are graded using the same criteria—the 4Cs:
- Carat: The weight of the diamond.
- Cut: The quality of the diamond's proportions, symmetry, and polish.
- Colour: The absence of colour in the diamond.
- Clarity: The absence of inclusions or blemishes.
Reputable gemological laboratories like the Gemological Institute of America (GIA) and the International Gemological Institute (IGI) grade both types of diamonds, so you can be confident in the quality of your purchase. A lab-grown diamond is chemically, physically, and optically identical to a mined diamond—even an experienced jeweller can’t tell the difference with the naked eye. This applies to all our beautiful rings, including engagement rings and earrings.
Resale and Market Perception
Historically, mined diamonds have held a strong resale value, largely due to their rarity and the marketing behind them. The resale market for lab-grown diamonds is still developing, and their value is generally lower than that of their mined counterparts.
However, the market is shifting. Lab-grown diamonds are gaining popularity as a fantastic option for engagement rings, earrings, and other jewellery. The focus is moving from a diamond as an investment to a diamond as a beautiful, high-quality gemstone that can be worn and cherished.
Whether you prefer the unique history of a mined diamond or the innovative, sustainable brilliance of a lab-grown one, we can help you find the perfect piece. Visit us at Maurizio Jewellery Designs or Russ Studio Jewellers St Arnaud to see our stunning collections of rings, engagement rings, and earrings, and speak with our expert jewellers.