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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 $695 USD
As of November 2, 2026
Save $2,515 USD (78%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,210 USD at Brilliant Earth · As of October 31, 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 October 31, 2026, with prices from $695 to $3,210, a $2,515 spread on the same certified stone. Brilliant Earth lists it at $3,210. 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
Color
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: $3,210 USD|Low: $478 USD|High: $6,060 USD|Avg: $1,479 USD|-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$478 USD
Retailer 4$695 USD
Retailer 9$864 USD
Retailer 3$895 USD
Retailer 2$903 USD
Retailer 8$968 USD
Retailer 6$1,179 USD
Retailer 5$2,035 USD
Brilliant Earth$3,210 USD

36 data points across 9 retailers

9 retailers$695 USD to $3,210 USD

Retailer 1
-
$478 USD
£376 GBP
Price last confirmed 16 days ago
A
Retailer 2
-
$695 USD
View
B+
Retailer 3
-
$864 USD
View
A
Retailer 4
-
$895 USD
€852 EUR
View
A
Retailer 5
-
$903 USD
£711 GBP
View
A
Retailer 6
-
$968 USD
View
A
Retailer 7
-
$1,179 USD
View
B+
Retailer 8
-
$2,035 USD
£1,602 GBP
View
Most Expensive
B
Brilliant Earth
8384918A · Oct 31
$3,210 USD
View
8 more retailers have this diamond
Prices start from $695 USDSave up to $2,515 USD

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
$695 USD