PriceScope is proud to present the second edition of our comprehensive Lab-Grown Diamond Price Analysis, a monthly report providing actionable insights into this rapidly changing market. Since introducing lab-grown diamonds to our platform in 2020, PriceScope has become a trusted resource for tracking real-time prices on 400,000+ loose diamonds from leading online vendors.
This month’s analysis covers how March 2025 market conditions influenced lab-grown diamond pricing in April, highlighting key trends across color and clarity categories. Additionally, we unpack the shifting consumer demand for popular diamond shapes, offering data-driven insights into emerging preferences and their potential implications for the natural diamond trade.
Where can I buy loose lab-grown diamonds? Shop loose lab-grown diamonds at PriceScope. Featuring premium quality lab-grown diamonds at Whiteflash, James Allen, Blue Nile, Adiamor, B2C Jewels, and more.
| ROUND Lab Diamond Price Changes For The Last 3 months | |||
| Diamond Carat Sizes | 2/1/2025 | 3/1/2025 | 4/1/2025 |
| 0.0 – 0.5 | 4 % ↑ | 1 % ↑ | 1 % ↑ |
| 0.5 – 1.0 | 11 % ↑ | -5 % ↓ | 6 % ↑ |
| 1.0 – 2.0 | 5 % ↑ | -10 % ↓ | -2 % ↓ |
| 2.0 – 3.0 | 38 % ↑ | -9 % ↓ | 4 % ↑ |
| 3.0 – 4.0 | 26 % ↑ | 28 % ↑ | 27 % ↑ |
| 4.0 – 99 | 22 % ↑ | 33 % ↑ | 11 % ↑ |
Click any cell in the table to see 12 different size categories and 12 different shape prices searchable by color and clarity.
The lab-grown diamond market in April 2025 exhibited distinct pricing trends across clarity and color categories, reflecting the ongoing change in consumer preferences, manufacturing efficiencies, and competitive market dynamics. Below is a detailed analysis comparing the data from March and April 2025.
In the premium grades, flawless (FL) diamonds experienced a slight price increase, rising from $808 in March to $844 in April. This marginal growth indicates a softening demand for flawless diamonds, though their premium appeal remains strong. Similarly, internally flawless (IF) diamonds demonstrated a modest increase from $621 to $626, maintaining their position as a stable option for consumers seeking high-quality lab diamonds. These trends highlight the enduring appeal of premium-grade diamonds among discerning buyers.
In the mid-range clarity categories, the market exhibited mixed results. F/VVS1 diamonds showed a minor price increase, rising from $515 in March to $597 in April, suggesting a rebound in demand for high-clarity diamonds in this tier. At the same time, G/VVS2 diamonds continued their upward trajectory, increasing from $617 to $653, reflecting strong consumer interest in diamonds that balance quality and affordability. These shifts underscore selective purchasing patterns among value-conscious buyers seeking premium mid-range options.
The lower-tier clarity grades experienced notable fluctuations, particularly in the SI1 category. J/SI1 diamonds saw a significant price increase from $1,038 in March to $1,236 in April, signaling a resurgence in demand for lower-grade diamonds. This may be attributed to cost-sensitive buyers or the increased use of these diamonds in fashion jewelry. On the other hand, K/SI2 diamonds remained stable at $1,272 across both months, reflecting consistent interest from budget-conscious buyers seeking larger carat sizes.
Our analysis of the Top 5 Popular Lab-Grown Diamond Shapes from March to April 2025:
In April 2025, round-cut maintained their dominance as the most popular lab-grown diamond shape, capturing 51.97% of the market, though this represented a 3.89% decline from March’s 55.86%, potentially signaling a shift in demand toward alternative shapes. Cushion-cut lab-grown diamonds demonstrated substantial growth, increasing from 9.00% to 10.83%. Oval-cut lab-grown diamonds also saw a significant increase in popularity, rising from 7.86% to 10.24%. Emerald-cut lab-grown diamonds saw a reduction in market share from 11.43% to 9.12%, suggesting a shift in consumer preferences toward more brilliant cuts. Meanwhile, radiant-cut diamonds, with their hybrid faceting that merges the brilliance of round cuts and the structured geometry of emeralds, continued to gain traction, increasing from 5.87% to 6.92%.
These trends show a shift in the lab-grown diamond market, with consumers favoring shapes that combine brilliance, precision, and unique designs. Rising demand for cushion, oval, and radiant diamonds highlights a preference for individuality, while the slight decline in round and emerald cuts reflects diversifying tastes.
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