More couples are opting for lab-grown diamonds when selecting engagement rings, according to the latest findings. In a notable shift, 52% of couples surveyed indicated that their rings featured lab-grown diamonds, as highlighted in the 2025 Real Weddings Study conducted by The Knot. This represents a 6% increase from the previous year and an impressive 40% rise since 2019.
The Knot’s 2025 analysis included insights from nearly 17,000 couples who married in the U.S. during 2024, as well as data from couples planning weddings in 2025. Financial considerations play a significant role in this trend, with many couples attracted to the lower cost of lab-grown diamonds. On average, a couple may expect to pay about $4,900 for a lab-grown ring, compared to approximately $7,600 for a traditional mined diamond.
According to Paul Zimnisky, a globally recognized diamond industry analyst, prices for lab-grown diamonds can be significantly lower, often costing around one-tenth that of their natural counterparts. In the first quarter of 2025, the average price for a 1-carat round lab-grown diamond was about $845, while a similar natural diamond would set buyers back roughly $3,895.
Comparing Lab-Grown and Natural Diamonds
Lab-grown diamonds share identical chemical properties and hardness levels with mined diamonds, which means they undergo the same grading system based on the “four C’s” — cut, color, clarity, and carat. Many wonder whether one can distinguish between a lab-grown and a mined diamond. Experts, including research scientists like Ulrika F.S. D’Haenens-Johansson from the Gemological Institute of America, state that while both appear the same to the naked eye, they can be differentiated under specific testing conditions.
Pros and Cons of Lab-Grown Diamonds
The primary benefit of lab-grown diamonds is their affordability, as increased supply has led to lower prices. Amanda Gizzi, director of public relations and events at Jewelers of America, emphasized that the enticing pricing has drawn in many consumers.
However, there are additional factors to contemplate:
- Ethics: Lab-grown diamonds offer a solution for consumers worried about “blood diamonds,” which are mined in conflict zones. Yet, advancements in the diamond industry have improved ethical sourcing significantly, largely due to the Kimberley Process, which was established to enhance transparency in the diamond supply chain.
- Environmental Impact: While lab-grown diamonds are often seen as a more sustainable option, they may require high energy consumption, especially since the laboratories often rely on fossil fuels. Some experts suggest considering second-hand diamonds as an even more environmentally friendly choice.
- Value Over Time: While engagement rings are generally seen as sentimental purchases rather than investments, lab-grown diamonds do typically depreciate in value faster than natural diamonds.
Key Considerations When Shopping for an Engagement Ring
Budgeting is crucial when purchasing an engagement ring. Lauren Kay, executive editor at The Knot, advises couples to set a budget that reflects their comfort level. The outdated notion of spending “three months’ salary” should be discarded, as Kay pointed out that this guideline is no longer relevant.
Regardless of whether one opts for a lab-grown or natural diamond, the emphasis should be on finding the best quality possible within the set budget.
When shopping for an engagement ring, consider these crucial points:
1. **The Four C’s:** Understanding cut, color, clarity, and carat will help in making an informed decision regarding which aspects matter most.
2. **The Metal:** The chosen ring metal affects both the aesthetic and price. While platinum is rarer and stronger, leading to a higher cost, its longevity may offset this initial investment compared to alternatives like white gold, which require more maintenance.
In conclusion, the growing acceptance of lab-grown diamonds reflects changing attitudes toward luxury and sustainability, making them a popular choice among modern couples.
