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Cushion|Lab Grown|IGI

4.00ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG794662539

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG794662539

Diamond specifications and retailer prices

From HK$6,590 HKD
$840 USD
As of October 31, 2026
Save HK$18,280 HKD (74%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$24,871 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4ct lab-grown cushion diamond

This 4ct lab-grown cushion 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 LG794662539 or 794662539. Listed at 8 retailers as of October 30, 2026, with prices from HK$6,590 to HK$24,871, a HK$18,280 spread on the same certified stone. Brilliant Earth lists it at HK$24,871. 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

4.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794662539
Dimensions10.92 × 8.22 × 5.66 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.92 mm8.22 mm4.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794662539
Side View
Table 49.0%Crown 38.2°Girdle: STK-THKPavilion 39.3°Culet: LargeDepth 68.9%

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 31
Current: HK$24,871 HKD|Low: HK$4,022 HKD|High: HK$46,917 HKD|Avg: HK$12,656 HKD|-47.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 9HK$4,022 HKD
Retailer 8HK$6,371 HKD
Retailer 3HK$6,590 HKD
Retailer 5HK$8,018 HKD
Retailer 6HK$8,560 HKD
Retailer 2HK$8,680 HKD
Retailer 4HK$10,976 HKD
Retailer 7HK$17,568 HKD
Brilliant EarthHK$24,871 HKD

42 data points across 9 retailers

8 retailersHK$6,590 HKD to HK$24,871 HKD

Retailer 1
-
HK$6,371 HKD
$812 USD
Price last confirmed 18 days ago
A
Retailer 2
-
HK$6,590 HKD
$840 USD
View
A
Retailer 3
-
HK$8,018 HKD
$1,022 USD
View
B+
Retailer 4
-
HK$8,560 HKD
$1,091 USD
View
A
Retailer 5
-
HK$8,680 HKD
£871 GBP
View
B+
Retailer 6
-
HK$10,976 HKD
$1,399 USD
View
B
Retailer 7
-
HK$17,568 HKD
SGD 3,026 SGD
View
Most Expensive
B
Brilliant Earth
21584608A · Oct 30
HK$24,871 HKD
$3,170 USD
View
7 more retailers have this diamond
Prices start from HK$6,590 HKDSave up to HK$18,280 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
4.00ct Cushion
HK$6,590 HKD