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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 $1,106 AUD
$775 USD
As of November 2, 2026
Save $3,403 AUD (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,509 AUD 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 $1,106 to $4,509, a $3,403 spread on the same certified stone. Brilliant Earth lists it at $4,509. 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

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $4,509 AUD|Low: $675 AUD|High: $4,666 AUD|Avg: $2,043 AUD|-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 7$789 AUD
Retailer 8$910 AUD
Retailer 6$1,106 AUD
Retailer 5$1,259 AUD
Retailer 2$1,410 AUD
Retailer 11$1,410 AUD
Retailer 9$1,477 AUD
Retailer 10$1,674 AUD
Retailer 4$3,798 AUD
Retailer 3$4,312 AUD
Brilliant Earth$4,509 AUD

35 data points across 11 retailers

10 retailers$1,106 AUD to $4,509 AUD

Retailer 1
-
$910 AUD
$638 USD
Price last confirmed 23 days ago
A
Retailer 2
-
$1,106 AUD
$775 USD
View
A
Retailer 3
-
$1,259 AUD
€840 EUR
View
A
Retailer 4
-
$1,410 AUD
£778 GBP
View
B+
Retailer 5
-
$1,410 AUD
$988 USD
View
A
Retailer 6
-
$1,477 AUD
$1,035 USD
View
A
Retailer 7
-
$1,674 AUD
$1,173 USD
View
B
Retailer 8
-
$3,798 AUD
£2,096 GBP
View
B
Retailer 9
-
$4,312 AUD
$3,022 USD
View
Most Expensive
B
Brilliant Earth
8988689A · Nov 2
$4,509 AUD
$3,160 USD
View
9 more retailers have this diamond
Prices start from $1,106 AUDSave up to $3,403 AUD

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
$1,106 AUD