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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 $1,235 NZD
$695 USD
As of November 2, 2026
Save $4,470 NZD (78%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $5,705 NZD 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 9 retailers as of November 2, 2026, with prices from $1,235 to $5,705, a $4,470 spread on the same certified stone. Brilliant Earth lists it at $5,705. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $5,705 NZD|Low: $849 NZD|High: $10,770 NZD|Avg: $2,628 NZD|-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$849 NZD
Retailer 4$1,235 NZD
Retailer 9$1,536 NZD
Retailer 3$1,590 NZD
Retailer 2$1,605 NZD
Retailer 8$1,720 NZD
Retailer 6$2,095 NZD
Retailer 5$3,616 NZD
Brilliant Earth$5,705 NZD

36 data points across 9 retailers

9 retailers$1,235 NZD to $5,705 NZD

Retailer 1
-
$849 NZD
£376 GBP
Price last confirmed 16 days ago
A
Retailer 2
-
$1,235 NZD
$695 USD
View
B+
Retailer 3
-
$1,536 NZD
$864 USD
View
A
Retailer 4
-
$1,590 NZD
€852 EUR
View
A
Retailer 5
-
$1,605 NZD
£711 GBP
View
A
Retailer 6
-
$1,720 NZD
$968 USD
View
A
Retailer 7
-
$2,095 NZD
$1,179 USD
View
B+
Retailer 8
-
$3,616 NZD
£1,602 GBP
View
Most Expensive
B
Brilliant Earth
8384918A · Nov 2
$5,705 NZD
$3,210 USD
View
8 more retailers have this diamond
Prices start from $1,235 NZDSave up to $4,470 NZD

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
$1,235 NZD