1.00 - 1.49ct I SI2 Natural Marquise
As of April 2026, there are 1,202 natural marquise diamonds with I color and SI2 clarity in the 1.00 - 1.49ct range available across retailers worldwide. Prices range from £144 GBP to £267,650 GBP, with an average of £4,711 GBP.
Last updated: April 2026
Available
1,202
Lowest Price
£144 GBP
Highest Price
£267,650 GBP
Average Price
£4,711 GBP
Market Intelligence
Retailers Selling
46
Cross Retailer %
N/A
Price Spread
43.2%
30-Day Price Trend
N/A
30-Day Supply Change
N/A
Volatility (30d)
N/A
Price Range
Price per carat distribution across retailers
10th Percentile
$1,868
Median
$2,762
90th Percentile
$4,090
Score Distribution
1.2K diamonds scored across 4 quality tiers
Excellent
218 (18.1%)
Very Good
437 (36.4%)
Good
427 (35.5%)
Average
120 (10.0%)
Find Your Diamond
Search 1,202 I SI2 marquise diamonds and compare prices.
Search DiamondsConsider Instead
Save money without compromising on what matters. These alternatives are visually similar but cost less.