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Cushion|Lab Grown|IGI

4.01ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG581330008

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG581330008

Diamond specifications and retailer prices

From HK$4,464 HKD
$569 USD
As of November 1, 2026
Save HK$20,094 HKD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$24,558 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.01ct lab-grown cushion diamond

This 4.01ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG581330008 or 581330008. Listed at 10 retailers as of November 1, 2026, with prices from HK$4,464 to HK$24,558, a HK$20,094 spread on the same certified stone. Brilliant Earth lists it at HK$24,558. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.01
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG581330008
Dimensions9.30 × 9.14 × 6.00 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
9.30 mm9.14 mm4.01 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG581330008
Side View
Table 63.0%Crown 36.4°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$24,558 HKD|Low: HK$3,805 HKD|High: HK$25,264 HKD|Avg: HK$9,949 HKD|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9HK$4,464 HKD
Retailer 6HK$4,943 HKD
Retailer 4HK$6,041 HKD
Retailer 3HK$6,846 HKD
Retailer 10HK$7,681 HKD
Retailer 7HK$8,058 HKD
Retailer 2HK$8,237 HKD
Retailer 8HK$8,999 HKD
Retailer 5HK$20,756 HKD
Brilliant EarthHK$24,558 HKD

34 data points across 10 retailers

10 retailersHK$4,464 HKD to HK$24,558 HKD

A
Cheapest Retailer
-
HK$4,464 HKD
$569 USD
Final sale: no returns
Retailer 2
-
HK$4,943 HKD
$630 USD
View
Price last confirmed 23 days ago
A
Retailer 3
-
HK$6,041 HKD
$770 USD
View
A
Retailer 4
-
HK$6,846 HKD
€831 EUR
View
B+
Retailer 5
-
HK$7,681 HKD
$979 USD
View
A
Retailer 6
-
HK$8,058 HKD
$1,027 USD
View
B+
Retailer 7
-
HK$8,237 HKD
£827 GBP
View
A
Retailer 8
-
HK$8,999 HKD
$1,147 USD
View
B
Retailer 9
-
HK$20,756 HKD
£2,083 GBP
View
Most Expensive
B
Brilliant Earth
7631457A · Nov 2
HK$24,558 HKD
$3,130 USD
View
9 more retailers have this diamond
Prices start from HK$4,464 HKDSave up to HK$20,094 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
4.01ct Cushion
HK$4,464 HKD