1.50 - 1.99ct I SI1 Natural Marquise
As of April 2026, there are 1,175 natural marquise diamonds with I color and SI1 clarity in the 1.50 - 1.99ct range available across retailers worldwide. Prices range from $216 CAD to $192,378 CAD, with an average of $6,215 CAD.
Last updated: April 2026
Available
1,175
Lowest Price
$216 CAD
Highest Price
$192,378 CAD
Average Price
$6,215 CAD
Market Intelligence
Retailers Selling
46
Cross Retailer %
N/A
Price Spread
32.4%
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
$4,374
Median
$6,632
90th Percentile
$8,750
Score Distribution
1.2K diamonds scored across 4 quality tiers
Excellent
221 (18.8%)
Very Good
299 (25.5%)
Good
421 (35.9%)
Average
232 (19.8%)
Find Your Diamond
Search 1,175 I SI1 marquise diamonds and compare prices.
Search DiamondsConsider Instead
Save money without compromising on what matters. These alternatives are visually similar but cost less.