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Round|Lab Grown|IGI

4.01ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG640419749

Shape and cutting style on the report: Round brilliant

Certificate IGI LG640419749

Diamond specifications and retailer prices

From HK$3,538 HKD
$451 USD
As of October 29, 2026
Save HK$26,589 HKD (88%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$30,127 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.01ct lab-grown round diamond

This 4.01ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG640419749 or 640419749. Listed at 16 retailers as of October 29, 2026, with prices from HK$3,538 to HK$30,127, a HK$26,589 spread on the same certified stone. Brilliant Earth lists it at HK$30,127. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640419749
Dimensions10.21 × 10.27 × 6.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
10.21 mm10.27 mm4.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640419749
Side View
Table 57.0%Crown 34.2°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.7%

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: Oct 29
Current: HK$30,127 HKD|Low: HK$3,538 HKD|High: HK$33,815 HKD|Avg: HK$9,850 HKD|-10.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 4HK$3,538 HKD
Retailer 12HK$3,962 HKD
Retailer 3HK$4,386 HKD
Retailer 16HK$4,386 HKD
Retailer 9HK$5,492 HKD
Retailer 15HK$5,642 HKD
Retailer 6HK$6,881 HKD
Retailer 2HK$7,101 HKD
Retailer 10HK$7,234 HKD
Retailer 7HK$7,618 HKD
Retailer 8HK$9,556 HKD
Retailer 13HK$11,784 HKD
Retailer 5HK$14,099 HKD
Retailer 11HK$16,192 HKD
Retailer 14HK$17,849 HKD
Brilliant EarthHK$30,127 HKD

39 data points across 16 retailers

16 retailersHK$3,538 HKD to HK$30,127 HKD

A
Cheapest Retailer
-
HK$3,538 HKD
$451 USD
A
Retailer 2
-
HK$3,962 HKD
$505 USD
View
A
Retailer 3
-
HK$4,386 HKD
$559 USD
View
Retailer 4
-
HK$4,386 HKD
$559 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
HK$5,492 HKD
$700 USD
View
Retailer 6
-
HK$5,642 HKD
£566 GBP
View
Price last confirmed 15 days ago
B+
Retailer 7
-
HK$6,881 HKD
$877 USD
View
A
Retailer 8
-
HK$7,101 HKD
€862 EUR
View
A
Retailer 9
-
HK$7,234 HKD
£726 GBP
View
A
Retailer 10
-
HK$7,618 HKD
$971 USD
View
B+
Retailer 11
-
HK$9,556 HKD
$1,218 USD
View
B+
Retailer 12
-
HK$11,784 HKD
$1,502 USD
View
B+
Retailer 13
-
HK$14,099 HKD
$1,797 USD
View
B
Retailer 14
-
HK$16,192 HKD
£1,625 GBP
View
Retailer 15
-
HK$17,849 HKD
$2,275 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
10688124A · Oct 31
HK$30,127 HKD
$3,840 USD
View
15 more retailers have this diamond
Prices start from HK$3,538 HKDSave up to HK$26,589 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 Round
HK$3,538 HKD