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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 $4,082 USD
£3,214 GBP
As of October 30, 2026
Save $13,306 USD (77%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $17,388 USD 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 $4,082 to $17,388, a $13,306 spread on the same certified stone. Taylor and Hart lists it at $17,388. 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
Color
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: $6,358 USD|Low: $4,082 USD|High: $24,139 USD|Avg: $10,575 USD|-27.9%
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 8$4,082 USD
Retailer 7$4,717 USD
Retailer 5$5,706 USD
Retailer 9$6,323 USD
Retailer 1$6,358 USD
Retailer 2$6,495 USD
Retailer 4$6,909 USD
Retailer 6$9,125 USD
Retailer 3$9,220 USD
Retailer 12$10,090 USD
Retailer 11$13,283 USD
Retailer 10$13,819 USD
Taylor and Hart$17,388 USD

34 data points across 13 retailers

19 retailers$4,082 USD to $17,388 USD

A
Cheapest Retailer
-
$4,082 USD
£3,214 GBP
A
Retailer 2
-
$4,717 USD
View
Final sale: no returns
A
Retailer 3
-
$5,706 USD
View
Retailer 4
-
$5,718 USD
View
Price last confirmed 26 days ago
Retailer 5
-
$5,956 USD
View
Price last confirmed 31 days ago
Retailer 6
-
$6,242 USD
View
Price last confirmed 32 days ago
A
Retailer 7
-
$6,323 USD
£4,978 GBP
View
A
Retailer 8
-
$6,358 USD
View
A
Retailer 9
-
$6,495 USD
View
Retailer 10
-
$6,814 USD
View
Price last confirmed 32 days ago
Retailer 11
-
$6,909 USD
View
Price last confirmed 18 days ago
Retailer 12
-
$6,909 USD
View
Price last confirmed 28 days ago
Retailer 13
-
$8,202 USD
View
Price last confirmed 30 days ago
A
Retailer 14
-
$9,125 USD
View
A
Retailer 15
-
$9,220 USD
£7,260 GBP
View
A
Retailer 16
-
$10,090 USD
View
B+
Retailer 17
-
$13,283 USD
£10,459 GBP
View
B+
Retailer 18
-
$13,819 USD
ZAR 223,248 ZAR
View
Most Expensive
B+
Taylor and Hart
BUYZF8Z · Oct 30
$17,388 USD
View
18 more retailers have this diamond
Prices start from $4,082 USDSave up to $13,306 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
$4,082 USD