HPHT Lab-Grown Diamonds: The Superior Choice for Brilliance and Durability
At Aroha Diamonds, we specialise in offering the finest HPHT (High-Pressure High-Temperature) lab-grown diamonds, renowned for their unmatched quality and value. As leaders in New Zealand’s jewellery industry, we take pride in educating our customers about the diamonds we offer. In this blog, we’ll explore the HPHT process, its benefits, and why it’s the ideal choice for luxurious, sustainable jewellery.
What is HPHT?
The HPHT method replicates the natural diamond formation process, creating diamonds that are identical to mined ones in every way—except for their origin. Here’s how it works:
- Diamond Seed: The process begins with a small diamond seed, which serves as the foundation for crystal growth.
- High Pressure and Heat: The seed is placed in a chamber and subjected to intense pressure (equivalent to 1.5 million pounds per square inch) and extreme heat (up to 1,500°C).
- Crystallisation: Carbon atoms crystallise around the seed, forming a genuine diamond over several weeks.
The result? A lab-grown diamond that’s indistinguishable from natural diamonds in brilliance, hardness, and sparkle—but with added benefits.
Why HPHT Diamonds Are Better
1. Superior Colour and Clarity
HPHT diamonds undergo a natural enhancement process that ensures they are consistently high-quality. At Aroha Diamonds, our HPHT diamonds are graded within the D to F colour range, meaning they are colourless or nearly so. Their clarity (IF to VVS2) ensures minimal inclusions, delivering a diamond that shines with brilliance.
2. Exceptional Durability
Just like mined diamonds, HPHT diamonds are incredibly durable, scoring a perfect 10 on the Mohs scale of hardness. This makes them ideal for everyday wear, especially in engagement rings and heirloom jewellery.
3. Ethical and Sustainable
Unlike mining, which can damage ecosystems and displace communities, the HPHT method has a much smaller environmental footprint. Choosing HPHT lab-grown diamonds means embracing a future of sustainability and ethical sourcing.
4. Natural Aesthetic
HPHT diamonds share the same cubic crystal structure as mined diamonds, giving them their characteristic sparkle and fire. Additionally, they are free from the slight strain patterns sometimes seen in diamonds grown using the CVD method.
HPHT vs. CVD: What Sets HPHT Apart?
While both HPHT and CVD (Chemical Vapor Deposition) methods produce lab-grown diamonds, HPHT offers unique advantages:
- Purity and Consistency: HPHT diamonds often have better colour purity, as the process eliminates the risk of brown or grey undertones sometimes seen in CVD diamonds.
- Cost-Effectiveness: The HPHT process allows for more efficient production, translating to better value for customers.
- Resilience: HPHT diamonds are naturally more stable under high temperatures, making them ideal for jewellery that stands the test of time.
At Aroha Diamonds, we carefully select every HPHT diamond to ensure it meets our strict standards for clarity, colour, and overall quality.
The Future of Luxury is HPHT
By choosing an HPHT lab-grown diamond, you’re investing in more than just a beautiful gemstone—you’re supporting a future of ethical luxury. Whether it’s a timeless engagement ring or a statement piece of fine jewellery, Aroha Diamonds ensures that every diamond is as perfect as the moment it celebrates.
Explore our dazzling collection of HPHT diamonds on our Shop Page today. For inquiries, feel free to contact us at info@arohadiamonds.co.nz or visit our homepage to learn more about what makes us New Zealand’s trusted source for sustainable, luxurious jewellery.
