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Cushion|Lab Grown|IGI

4.12ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG602314691

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG602314691

Diamond specifications and retailer prices

From $992 AUD
$695 USD
As of November 2, 2026
Save $3,589 AUD (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,580 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.12ct lab-grown cushion diamond

This 4.12ct 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 LG602314691 or 602314691. Listed at 8 retailers as of November 2, 2026, with prices from $992 to $4,580, a $3,589 spread on the same certified stone. Brilliant Earth lists it at $4,580. 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

4.12
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.1°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG602314691
Dimensions10.79 × 8.58 × 5.73 mm
L/W Ratio1.26
Girdle conditionFaceted
Culet sizePointed
Top View
10.79 mm8.58 mm4.12 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG602314691
Side View
Table 66.0%Crown 31.1°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 66.8%

Caratlytics Score

How it works →
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: $4,580 AUD|Low: $682 AUD|High: $8,647 AUD|Avg: $2,121 AUD|-47.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$682 AUD
Retailer 4$992 AUD
Retailer 9$1,233 AUD
Retailer 3$1,277 AUD
Retailer 2$1,289 AUD
Retailer 8$1,381 AUD
Retailer 6$1,682 AUD
Retailer 5$2,903 AUD
Brilliant Earth$4,580 AUD

35 data points across 9 retailers

8 retailers$992 AUD to $4,580 AUD

A
Cheapest Retailer
-
$992 AUD
$695 USD
B+
Retailer 2
-
$1,233 AUD
$864 USD
View
A
Retailer 3
-
$1,277 AUD
€852 EUR
View
A
Retailer 4
-
$1,289 AUD
£711 GBP
View
A
Retailer 5
-
$1,381 AUD
$968 USD
View
A
Retailer 6
-
$1,682 AUD
$1,179 USD
View
B+
Retailer 7
-
$2,903 AUD
£1,602 GBP
View
Most Expensive
B
Brilliant Earth
8384918A · Nov 2
$4,580 AUD
$3,210 USD
View
7 more retailers have this diamond
Prices start from $992 AUDSave up to $3,589 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
4.12ct Cushion
$992 AUD