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Marquise|Lab Grown|IGI

4.02ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG839622928

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG839622928

Diamond specifications and retailer prices

From $5,811 AUD
£3,214 GBP
As of October 30, 2026
Save $18,943 AUD (77%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $24,753 AUD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.02ct lab-grown marquise diamond

This 4.02ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG839622928 or 839622928. Listed at 19 retailers as of October 30, 2026, with prices from $5,811 to $24,753, a $18,943 spread on the same certified stone. Taylor and Hart lists it at $24,753. 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
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839622928
Dimensions16.18 × 8.33 × 4.94 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.18 mm8.33 mm4.02 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839622928
Side View
Table 61.0%Crown 34.5°Girdle: THK-VTKPavilion 36.9°Culet: NoneDepth 59.3%

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: Oct 30
Current: $9,001 AUD|Low: $5,811 AUD|High: $34,364 AUD|Avg: $14,996 AUD|-11.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
October 31, 2026
Retailer 11$5,811 AUD
Retailer 10$6,715 AUD
Retailer 8$8,123 AUD
Retailer 5$8,129 AUD
Retailer 1$9,001 AUD
Retailer 7$9,051 AUD
Retailer 6$9,785 AUD
Retailer 4$9,836 AUD
Retailer 9$12,990 AUD
Retailer 3$14,364 AUD
Retailer 2$18,910 AUD
Retailer 12$19,673 AUD
Taylor and Hart$24,753 AUD

34 data points across 13 retailers

19 retailers$5,811 AUD to $24,753 AUD

A
Cheapest Retailer
-
$5,811 AUD
£3,214 GBP
A
Retailer 2
-
$6,715 AUD
$4,717 USD
View
Final sale: no returns
A
Retailer 3
-
$8,123 AUD
$5,706 USD
View
A
Retailer 4
-
$8,129 AUD
$5,710 USD
View
Retailer 5
-
$8,140 AUD
$5,718 USD
View
Price last confirmed 26 days ago
Retailer 6
-
$8,479 AUD
$5,956 USD
View
Price last confirmed 31 days ago
Retailer 7
-
$8,886 AUD
$6,242 USD
View
Price last confirmed 32 days ago
A
Retailer 8
-
$9,001 AUD
£4,979 GBP
View
A
Retailer 9
-
$9,051 AUD
$6,358 USD
View
Retailer 10
-
$9,700 AUD
$6,814 USD
View
Price last confirmed 32 days ago
A
Retailer 11
-
$9,785 AUD
£5,412 GBP
View
Retailer 12
-
$9,836 AUD
$6,909 USD
View
Price last confirmed 19 days ago
Retailer 13
-
$9,836 AUD
$6,909 USD
View
Price last confirmed 28 days ago
Retailer 14
-
$11,676 AUD
$8,202 USD
View
Price last confirmed 31 days ago
A
Retailer 15
-
$12,990 AUD
$9,125 USD
View
A
Retailer 16
-
$14,364 AUD
$10,090 USD
View
B+
Retailer 17
-
$18,910 AUD
£10,459 GBP
View
B+
Retailer 18
-
$19,673 AUD
ZAR 223,248 ZAR
View
Most Expensive
B+
Taylor and Hart
BUYZF8Z · Oct 30
$24,753 AUD
$17,388 USD
View
18 more retailers have this diamond
Prices start from $5,811 AUDSave up to $18,943 AUD

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
$5,811 AUD