5.00ct+ J SI1 Lab Grown Cushion
As of April 2026, there are 574 lab grown cushion diamonds with J color and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices range from ￥28,657 JPY to ￥13,226,400 JPY, with an average of ￥630,691 JPY.
Last updated: April 2026
Available
574
Lowest Price
￥28,657 JPY
Highest Price
￥13,226,400 JPY
Average Price
￥630,691 JPY
Score Distribution
574 diamonds scored across 4 quality tiers
Excellent
29 (5.1%)
Very Good
46 (8.0%)
Good
296 (51.6%)
Average
203 (35.4%)
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