Lab-grown diamond engagement rings are on the rise—and the numbers prove it. According to The Knot’s 2025 Real Weddings Study, 52% of couples in 2024 chose lab-grown diamonds for their engagement rings. That marks a 6% increase from last year and a staggering 40% jump since 2019.
So, what’s driving this shift? From affordability to ethical sourcing, lab-grown diamonds are reshaping how couples shop for fine jewelry.
Lab-Grown Diamonds vs. Natural Diamonds: What’s the Difference?
Chemically and visually, lab-grown and natural diamonds are nearly identical. Both are evaluated by the same 4Cs: cut, color, clarity, and carat. To the naked eye, they look the same—but under specialized testing, jewelers can distinguish the origin.
Why Lab-Grown Diamonds Are So Popular
1. Lower cost:
The average lab-grown diamond engagement ring costs around $4,900, compared to $7,600 for a mined diamond, according to The Knot. A 1-carat lab-grown diamond currently averages $845, while a similar natural diamond is priced around $3,895.
2. Ethical appeal:
Many buyers appreciate that lab-grown diamonds avoid the ethical concerns tied to “blood diamonds.” Though the natural diamond industry has implemented safeguards like the Kimberley Process, lab diamonds provide a modern alternative for socially conscious shoppers.
3. Accessibility and customization:
Because lab-grown diamonds cost less, couples often afford larger stones or higher clarity grades without breaking their budget. This allows for more personalization in style and size.
Are Lab-Grown Diamonds a Good Investment?
Not necessarily. While they’re ideal for sentimental value, lab-grown diamonds generally don’t retain resale value. Amanda Gizzi of Jewelers of America warns that they often resell for less than their original price. In contrast, natural diamonds and gemstones can hold or increase in value over time—particularly high-quality stones.
Sustainability and Environmental Impact
Although often marketed as “eco-friendly,” the sustainability of lab-grown diamonds remains debated. The process can be energy-intensive, with many labs powered by fossil fuels. For a truly low-impact option, experts recommend vintage or second-hand diamonds.
How to Shop Smart: Expert Engagement Ring Tips
1. Know the Four C’s:
Understand which of the 4Cs—cut, color, clarity, and carat—matters most to you. Prioritizing one or two can help reduce overall cost while still delivering a beautiful stone.
2. Choose the right metal:
The ring’s metal influences both appearance and price. White gold is more affordable but requires periodic re-plating, while platinum is stronger and more durable, though more expensive upfront.
3. Set a realistic budget:
The old “three months’ salary” rule is outdated. Instead, focus on buying the best diamond your budget allows—lab-grown or natural.
Lab-grown diamond rings are no longer a niche choice—they're a mainstream trend for 2025. Whether you’re drawn by cost, ethics, or customizability, lab-grown engagement rings offer a smart, stylish option for modern couples.
Still, understanding the long-term value and environmental impact is key to making a confident decision. Whether you go lab-grown or mined, the best engagement ring is the one that feels right for your love—and your budget.
