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Marquise|Lab Grown|IGI

4.02ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG631468299

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG631468299

Diamond specifications and retailer prices

From $27,728 AUD
$19,480 USD
As of October 28, 2026
2 retailers carry this diamond
Only listing: $27,728 AUD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG631468299 or 631468299. Listed at 2 retailers as of October 28, 2026. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.02
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631468299
Dimensions15.91 × 8.39 × 5.26 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
15.91 mm8.39 mm4.02 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631468299
Side View
Table 61.0%Crown 35.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.7%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $21,280 AUD|Low: $13,582 AUD|High: $1,053,288 AUD|Avg: $82,191 AUD|-38.5%
Brilliant Earth
Retailer 2
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September 4, 2026
Retailer 10$13,582 AUD
Retailer 2$18,728 AUD
Retailer 14$19,075 AUD
Brilliant Earth$21,280 AUD
Retailer 11$25,112 AUD
Retailer 4$28,904 AUD
Retailer 13$32,212 AUD
Retailer 8$33,559 AUD
Retailer 6$48,657 AUD
Retailer 7$52,458 AUD
Retailer 3$58,833 AUD
Retailer 12$67,113 AUD
Retailer 5$99,980 AUD
Retailer 9$103,081 AUD

59 data points across 14 retailers

2 retailers

B+
Brilliant Earth
18396742Y · Oct 28
$27,728 AUD
$19,480 USD
View

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B+
4.02ct Marquise
$27,728 AUD