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Cushion|Lab Grown|IGI

5.05ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG838637523

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG838637523

Diamond specifications and retailer prices

From HK$5,539 HKD
$706 USD
As of November 1, 2026
Save HK$41,616 HKD (88%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$47,155 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 5.05ct lab-grown cushion diamond

This 5.05ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG838637523 or 838637523. Listed at 11 retailers as of November 1, 2026, with prices from HK$5,539 to HK$47,155, a HK$41,616 spread on the same certified stone. Brilliant Earth lists it at HK$47,155. 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

5.05
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838637523
Dimensions10.06 × 9.83 × 6.45 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.06 mm9.83 mm5.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838637523
Side View
Table 63.0%Crown 36.1°Girdle: MED-THKPavilion 37.5°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$47,155 HKD|Low: HK$5,539 HKD|High: HK$58,375 HKD|Avg: HK$18,296 HKD|-19.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9HK$5,539 HKD
Retailer 4HK$6,415 HKD
Retailer 7HK$6,669 HKD
Retailer 3HK$7,352 HKD
Retailer 5HK$9,532 HKD
Retailer 2HK$10,018 HKD
Retailer 10HK$10,412 HKD
Retailer 8HK$12,522 HKD
Retailer 11HK$19,796 HKD
Retailer 6HK$24,164 HKD
Brilliant EarthHK$47,155 HKD

30 data points across 11 retailers

11 retailersHK$5,539 HKD to HK$47,155 HKD

A
Cheapest Retailer
-
HK$5,539 HKD
$706 USD
Final sale: no returns
A
Retailer 2
-
HK$6,415 HKD
£644 GBP
View
A
Retailer 3
-
HK$6,669 HKD
$850 USD
View
B+
Retailer 4
-
HK$7,352 HKD
$937 USD
View
B+
Retailer 5
-
HK$9,532 HKD
£957 GBP
View
B+
Retailer 6
-
HK$10,018 HKD
€1,216 EUR
View
B+
Retailer 7
-
HK$10,412 HKD
$1,327 USD
View
B+
Retailer 8
-
HK$12,522 HKD
$1,596 USD
View
B
Retailer 9
-
HK$19,796 HKD
$2,523 USD
View
B
Retailer 10
-
HK$24,164 HKD
£2,425 GBP
View
Most Expensive
B
Brilliant Earth
21684254A · Nov 2
HK$47,155 HKD
$6,010 USD
View
10 more retailers have this diamond
Prices start from HK$5,539 HKDSave up to HK$41,616 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
5.05ct Cushion
HK$5,539 HKD