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Marquise|Lab Grown|IGI

4.02ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG784644573

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG784644573

Diamond specifications and retailer prices

From £5,054 GBP
$6,772 USD
As of October 27, 2026
Save £11,240 GBP (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £16,294 GBP at Frank Darling · As of October 27, 2026
View at Frank Darling

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784644573 or 784644573. Listed at 15 retailers as of October 27, 2026, with prices from £5,054 to £16,294, a £11,240 spread on the same certified stone. Frank Darling lists it at £16,294. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784644573
Dimensions15.87 × 8.21 × 5.36 mm
L/W Ratio1.93
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
15.87 mm8.21 mm4.02 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784644573
Side View
Table 64.0%Crown 36.7°Girdle: MED-STKPavilion 42°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
A+
Exceptional
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: Oct 27
Current: £16,294 GBP|Low: £5,054 GBP|High: £35,757 GBP|Avg: £10,671 GBP|-11.3%
Frank Darling
Retailer 2
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 10£5,054 GBP
Retailer 12£5,152 GBP
Retailer 5£5,256 GBP
Retailer 6£5,326 GBP
Retailer 15£5,836 GBP
Retailer 13£6,739 GBP
Retailer 7£6,741 GBP
Retailer 11£6,795 GBP
Retailer 3£7,278 GBP
Retailer 8£7,426 GBP
Retailer 2£9,613 GBP
Retailer 9£11,358 GBP
Retailer 4£12,723 GBP
Frank Darling£16,294 GBP
Retailer 14£31,540 GBP

31 data points across 15 retailers

15 retailers£5,054 GBP to £16,294 GBP

A+
Cheapest Retailer
-
£5,054 GBP
$6,772 USD
A
Retailer 2
-
£5,152 GBP
$6,903 USD
View
A
Retailer 3
-
£5,256 GBP
$7,043 USD
View
A
Retailer 4
-
£5,326 GBP
$7,136 USD
View
A
Retailer 5
-
£5,836 GBP
$7,820 USD
View
A
Retailer 6
-
£6,739 GBP
$9,029 USD
View
A
Retailer 7
-
£6,741 GBP
$9,032 USD
View
Final sale: no returns
A
Retailer 8
-
£6,795 GBP
$9,105 USD
View
A
Retailer 9
-
£7,278 GBP
$9,752 USD
View
A
Retailer 10
-
£7,426 GBP
$9,950 USD
View
B+
Retailer 11
-
£9,613 GBP
$12,880 USD
View
B+
Retailer 12
-
£11,358 GBP
€14,494 EUR
View
B+
Retailer 13
-
£12,723 GBP
View
Most Expensive
B
Frank Darling
P83G-10EL · Oct 27
£16,294 GBP
$21,832 USD
View
13 more retailers have this diamond
Prices start from £5,054 GBPSave up to £11,240 GBP

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
£5,054 GBP