CaratHunter
Plans
Cushion|Lab Grown|IGI

4.06ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG617417790

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG617417790

Diamond specifications and retailer prices

From HK$6,081 HKD
$775 USD
As of November 2, 2026
Save HK$18,713 HKD (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$24,794 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.06ct lab-grown cushion diamond

This 4.06ct 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 LG617417790 or 617417790. Listed at 10 retailers as of November 2, 2026, with prices from HK$6,081 to HK$24,794, a HK$18,713 spread on the same certified stone. Brilliant Earth lists it at HK$24,794. 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

4.06
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617417790
Dimensions9.33 × 9.25 × 6.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.33 mm9.25 mm4.06 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617417790
Side View
Table 64.0%Crown 35.7°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 65.4%

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 2
Current: HK$24,794 HKD|Low: HK$3,712 HKD|High: HK$25,657 HKD|Avg: HK$11,237 HKD|-3.4%
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 7HK$4,339 HKD
Retailer 8HK$5,006 HKD
Retailer 6HK$6,081 HKD
Retailer 5HK$6,920 HKD
Retailer 2HK$7,751 HKD
Retailer 11HK$7,752 HKD
Retailer 9HK$8,121 HKD
Retailer 10HK$9,203 HKD
Retailer 4HK$20,886 HKD
Retailer 3HK$23,711 HKD
Brilliant EarthHK$24,794 HKD

35 data points across 11 retailers

10 retailersHK$6,081 HKD to HK$24,794 HKD

Retailer 1
-
HK$5,006 HKD
$638 USD
Price last confirmed 23 days ago
A
Retailer 2
-
HK$6,081 HKD
$775 USD
View
A
Retailer 3
-
HK$6,920 HKD
€840 EUR
View
A
Retailer 4
-
HK$7,751 HKD
£778 GBP
View
B+
Retailer 5
-
HK$7,752 HKD
$988 USD
View
A
Retailer 6
-
HK$8,121 HKD
$1,035 USD
View
A
Retailer 7
-
HK$9,203 HKD
$1,173 USD
View
B
Retailer 8
-
HK$20,886 HKD
£2,096 GBP
View
B
Retailer 9
-
HK$23,711 HKD
$3,022 USD
View
Most Expensive
B
Brilliant Earth
8988689A · Nov 2
HK$24,794 HKD
$3,160 USD
View
9 more retailers have this diamond
Prices start from HK$6,081 HKDSave up to HK$18,713 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
4.06ct Cushion
HK$6,081 HKD