1.00 - 1.49ct I SI1 Lab Grown Radiant
As of April 2026, there are 401 lab grown radiant diamonds with I color and SI1 clarity in the 1.00 - 1.49ct range available across retailers worldwide. Prices range from ￥28,812 JPY to ￥80,909,403 JPY, with an average of ￥615,730 JPY.
Last updated: April 2026
Available
401
Lowest Price
￥28,812 JPY
Highest Price
￥80,909,403 JPY
Average Price
￥615,730 JPY
Market Intelligence
Retailers Selling
25
Cross Retailer %
N/A
Price Spread
31.1%
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
$411
Median
$1,375
90th Percentile
$2,557
Score Distribution
401 diamonds scored across 4 quality tiers
Excellent
10 (2.5%)
Very Good
36 (9.0%)
Good
260 (64.8%)
Average
95 (23.7%)
Find Your Diamond
Search 401 I SI1 radiant diamonds and compare prices.
Search Diamonds