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Marquise|Lab Grown|IGI

4.02ct F SI1 Marquise Lab Grown Diamond

EX • F/SI1 • IGI LG754510285

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754510285

Diamond specifications and retailer prices

From $1,008 NZD
$567 USD
As of November 1, 2026
Save $4,946 NZD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,954 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.02ct lab-grown marquise diamond

This 4.02ct lab-grown marquise 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 LG754510285 or 754510285. Listed at 18 retailers as of November 1, 2026, with prices from $1,008 to $5,954, a $4,946 spread on the same certified stone. Brilliant Earth lists it at $5,954. 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

4.02
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754510285
Dimensions16.96 × 7.92 × 5.07 mm
L/W Ratio2.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.96 mm7.92 mm4.02 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754510285
Side View
Table 61.0%Crown 39.9°Girdle: MED-THKPavilion 39.2°Culet: NoneDepth 64.0%

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 1
Current: $5,954 NZD|Low: $878 NZD|High: $10,628 NZD|Avg: $2,571 NZD|-44.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 6$946 NZD
Retailer 14$1,008 NZD
Retailer 5$1,057 NZD
Retailer 8$1,171 NZD
Retailer 11$1,360 NZD
Retailer 15$1,502 NZD
Retailer 12$1,690 NZD
Retailer 9$1,847 NZD
Retailer 4$1,857 NZD
Retailer 13$2,047 NZD
Retailer 2$2,641 NZD
Retailer 7$3,082 NZD
Retailer 3$3,640 NZD
Retailer 16$3,685 NZD
Retailer 10$4,668 NZD
Brilliant Earth$5,954 NZD

40 data points across 16 retailers

18 retailers$1,008 NZD to $5,954 NZD

Retailer 1
-
$946 NZD
$532 USD
Price last confirmed 12 days ago
A
Retailer 2
-
$1,008 NZD
$567 USD
View
Final sale: no returns
Retailer 3
-
$1,057 NZD
$595 USD
View
Price last confirmed 12 days ago
Retailer 4
-
$1,171 NZD
$659 USD
View
Price last confirmed 17 days ago
Retailer 5
-
$1,171 NZD
$659 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$1,360 NZD
$765 USD
View
B+
Retailer 7
-
$1,502 NZD
$845 USD
View
A
Retailer 8
-
$1,690 NZD
$951 USD
View
A
Retailer 9
-
$1,847 NZD
£818 GBP
View
A
Retailer 10
-
$1,857 NZD
€995 EUR
View
A
Retailer 11
-
$2,047 NZD
$1,152 USD
View
B+
Retailer 12
-
$2,641 NZD
$1,486 USD
View
Retailer 13
-
$3,082 NZD
$1,734 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$3,640 NZD
$2,048 USD
View
B
Retailer 15
-
$3,685 NZD
$2,073 USD
View
B
Retailer 16
-
$4,559 NZD
$2,565 USD
View
B
Retailer 17
-
$4,668 NZD
£2,068 GBP
View
Most Expensive
B
Brilliant Earth
18434020A · Nov 2
$5,954 NZD
$3,350 USD
View
17 more retailers have this diamond
Prices start from $1,008 NZDSave up to $4,946 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
4.02ct Marquise
$1,008 NZD