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Radiant|Lab Grown|IGI

4.07ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG640439977

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG640439977

Diamond specifications and retailer prices

From HK$3,344 HKD
£336 GBP
As of October 28, 2026
Save HK$29,533 HKD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$32,876 HKD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 4.07ct lab-grown radiant diamond

This 4.07ct lab-grown radiant 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 LG640439977 or 640439977. Listed at 17 retailers as of October 26, 2026, with prices from HK$3,344 to HK$32,876, a HK$29,533 spread on the same certified stone. Brilliant Earth lists it at HK$32,876. 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

4.07
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.3°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640439977
Dimensions11.22 × 7.94 × 5.37 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.22 mm7.94 mm4.07 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640439977
Side View
Table 64.0%Crown 41.3°Girdle: MediumPavilion 35.5°Culet: NoneDepth 67.6%

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: Oct 28
Current: HK$32,876 HKD|Low: HK$3,343 HKD|High: HK$35,858 HKD|Avg: HK$10,450 HKD|-8.3%
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
October 28, 2026
Retailer 7HK$3,344 HKD
Retailer 3HK$3,601 HKD
Retailer 4HK$3,931 HKD
Retailer 8HK$3,986 HKD
Retailer 13HK$6,042 HKD
Retailer 14HK$6,309 HKD
Retailer 2HK$6,512 HKD
Retailer 12HK$6,830 HKD
Retailer 5HK$7,274 HKD
Retailer 6HK$10,875 HKD
Retailer 10HK$11,173 HKD
Retailer 9HK$15,585 HKD
Retailer 11HK$19,538 HKD
Brilliant EarthHK$32,876 HKD

36 data points across 14 retailers

17 retailersHK$3,344 HKD to HK$32,876 HKD

A
Cheapest Retailer
-
HK$3,344 HKD
£336 GBP
Retailer 2
-
HK$3,601 HKD
$459 USD
View
Price last confirmed 32 days ago
Retailer 3
-
HK$3,931 HKD
$501 USD
View
Price last confirmed 32 days ago
Retailer 4
-
HK$3,986 HKD
$508 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
HK$3,986 HKD
$508 USD
View
A
Retailer 6
-
HK$6,042 HKD
$770 USD
View
B+
Retailer 7
-
HK$6,309 HKD
$804 USD
View
A
Retailer 8
-
HK$6,512 HKD
£653 GBP
View
A
Retailer 9
-
HK$6,830 HKD
€829 EUR
View
A
Retailer 10
-
HK$7,274 HKD
$927 USD
View
B+
Retailer 11
-
HK$10,875 HKD
$1,386 USD
View
B+
Retailer 12
-
HK$11,173 HKD
$1,424 USD
View
B+
Retailer 13
-
HK$14,693 HKD
£1,475 GBP
View
B+
Retailer 14
-
HK$15,585 HKD
£1,564 GBP
View
B
Retailer 15
-
HK$19,538 HKD
$2,490 USD
View
Retailer 16
-
HK$19,616 HKD
$2,500 USD
View
Price last confirmed 29 days ago
Most Expensive
B
Brilliant Earth
10979854A · Oct 26
HK$32,876 HKD
$4,190 USD
View
16 more retailers have this diamond
Prices start from HK$3,344 HKDSave up to HK$29,533 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
4.07ct Radiant
HK$3,344 HKD