How Are Diamonds Made? Natural vs Lab-Created Explained
Two Paths, One Diamond Not all diamonds come from the same place — but they all start the same way. Pure carbon, crystalized under immense pressure and heat. Whether it…
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.Â
Round Diamond Price Chart
The global market for lab-grown diamonds is projected to reach $29.73 billion in 2025 (Precedence Research, 2025), driven by increasing consumer awareness, improved affordability, and technological advancements in production. Notably, demand for larger carat sizes and fancy shapes such as Emerald and Radiant cuts has surged, reflecting a shift towards unique and high-value designs. Meanwhile, the price gap between lab-grown and natural diamonds has widened, solidifying lab-grown options as an attractive alternative for budget-conscious buyers.
| ROUNDÂ Lab Diamond Price Changes For The Last 3 months | |||
| Diamond Carat Sizes | 1/1/2025 | 2/1/2025 | 3/1/2025 |
| 0.0 – 0.5 | 6 % ↑ | 4 % ↑ | 1 % ↑ |
| 0.5 – 1.0 | 12 % ↑ | 11 % ↑ | -5 % ↓ |
| 1.0 – 2.0 | 9 % ↑ | 5 % ↑ | -10 % ↓ |
| 2.0 – 3.0 | 37 % ↑ | 38 % ↑ | -9 % ↓ |
| 3.0 – 4.0 | 71 % ↑ | 26 % ↑ | 28 % ↑ |
| 4.0 – 99 | 38 % ↑ | 22 % ↑ | 33 % ↑ |
Average Price Per Carat For a Round DiamondÂ
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 for round diamonds in the 1.00–1.19 carat range in March 2025 revealed dynamic pricing trends across clarity and color categories. These shifts highlight the evolving interplay of consumer demand, manufacturing trends, and competitive pressures within the lab-grown diamond market.
Premium Grades
Flawless lab-grown diamonds exhibited mixed performance in March. D/FL clarity diamonds saw a modest increase, rising from $794 in February to $808 in March, reflecting stable demand for flawless lab-grown diamonds. Conversely, D/IF clarity diamonds remained relatively flat, moving from $619 to $621, indicating consistent interest in internally flawless options despite broader market adjustments.
Mid-Range Grades
The mid-range clarity categories experienced notable fluctuations. F/VVS1 clarity diamonds declined slightly from $515 in February to $498 in March, reflecting a cooling in demand for high-clarity diamonds within this tier. However, G/VVS2 clarity diamonds saw an increase, rising from $584 to $617, suggesting selective purchasing patterns among consumers seeking value in premium mid-range options.
Lower Grades
The lower-tier clarity grades faced contrasting trends. J/SI1 diamonds experienced a sharp decline, dropping from $1,091 in February to $1,038 in March, pointing to reduced demand in this segment. Meanwhile, K/SI2 diamonds remained stable at $1,272, reflecting steady interest in lower-grade lab-grown diamonds.
Popular Diamond Shapes
Our analysis of the Top 5 Popular Lab-Grown Diamond Shapes from February to March 2025 highlights evolving consumer preferences.
Round diamonds, increasing from 55.14% to 55.86% (+0.72%), remain the benchmark for brilliance and symmetry. Emerald diamonds rose slightly from 11.28% to 11.43% (+0.15%), valued for their step-cut faceting. Cushion diamonds grew from 8.70% to 9.00% (+0.30%). Oval diamonds edged up from 7.66% to 7.86% (+0.20%). Radiant diamonds entered the Top 5 at 5.87%. Radiant diamonds stand out for their hybrid faceting, which merges the brilliance of round cuts with the structured geometry of emerald shapes. This versatile design is favored for its vibrant light performance and bold appeal.
