CaratHunter
Plans
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 $567 USD
As of November 1, 2026
Save $2,783 USD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,350 USD at Brilliant Earth · As of October 31, 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 17 retailers as of October 31, 2026, with prices from $567 to $3,350, a $2,783 spread on the same certified stone. Brilliant Earth lists it at $3,350. 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
Color
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

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 1
Current: $3,350 USD|Low: $494 USD|High: $5,980 USD|Avg: $1,453 USD|-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$532 USD
Retailer 14$567 USD
Retailer 5$595 USD
Retailer 8$659 USD
Retailer 11$765 USD
Retailer 15$845 USD
Retailer 12$951 USD
Retailer 2$1,039 USD
Retailer 4$1,045 USD
Retailer 13$1,152 USD
Retailer 10$1,468 USD
Retailer 7$1,734 USD
Retailer 3$2,048 USD
Retailer 16$2,073 USD
Retailer 9$2,626 USD
Brilliant Earth$3,350 USD

40 data points across 16 retailers

17 retailers$567 USD to $3,350 USD

Retailer 1
-
$532 USD
Price last confirmed 11 days ago
A
Retailer 2
-
$567 USD
View
Final sale: no returns
Retailer 3
-
$595 USD
View
Price last confirmed 12 days ago
Retailer 4
-
$659 USD
View
Price last confirmed 17 days ago
Retailer 5
-
$659 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$765 USD
View
B+
Retailer 7
-
$845 USD
View
A
Retailer 8
-
$951 USD
View
A
Retailer 9
-
$1,039 USD
£818 GBP
View
B+
Retailer 10
-
$1,045 USD
€995 EUR
View
A
Retailer 11
-
$1,152 USD
View
B+
Retailer 12
-
$1,468 USD
View
Retailer 13
-
$1,734 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$2,048 USD
View
B
Retailer 15
-
$2,073 USD
View
B
Retailer 16
-
$2,626 USD
£2,068 GBP
View
Most Expensive
B
Brilliant Earth
18434020A · Oct 31
$3,350 USD
View
16 more retailers have this diamond
Prices start from $567 USDSave up to $2,783 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
4.02ct Marquise
$567 USD