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Marquise|Lab Grown|IGI

4.03ct D FL Marquise Lab Grown Diamond

VG • D/FL • IGI LG773639183

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG773639183

Diamond specifications and retailer prices

From £6,039 GBP
$8,092 USD
As of October 31, 2026
Save £21,567 GBP (78%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £27,606 GBP at Frank Darling · As of October 31, 2026
View at Frank Darling

About this 4.03ct lab-grown marquise diamond

This 4.03ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG773639183 or 773639183. Listed at 21 retailers as of October 31, 2026, with prices from £6,039 to £27,606, a £21,567 spread on the same certified stone. Frank Darling lists it at £27,606. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.03
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773639183
Dimensions16.18 × 8.39 × 5.24 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
16.18 mm8.39 mm4.03 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG773639183
Side View
Table 60.0%Crown 34.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.5%

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 31
Current: £27,606 GBP|Low: £6,039 GBP|High: £44,265 GBP|Avg: £16,084 GBP|-5.1%
Frank Darling
Retailer 2
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Retailer 20
November 1, 2026
Retailer 3£6,039 GBP
Retailer 8£6,848 GBP
Retailer 13£7,162 GBP
Retailer 9£7,521 GBP
Retailer 20£7,713 GBP
Retailer 4£8,232 GBP
Retailer 18£8,528 GBP
Retailer 19£8,554 GBP
Retailer 16£10,193 GBP
Retailer 11£12,318 GBP
Retailer 17£13,662 GBP
Retailer 2£13,814 GBP
Retailer 12£14,305 GBP
Retailer 14£16,300 GBP
Retailer 15£18,303 GBP
Retailer 5£21,439 GBP
Retailer 7£26,725 GBP
Frank Darling£27,606 GBP
Retailer 10£39,257 GBP
Retailer 6£41,906 GBP

24 data points across 20 retailers

21 retailers£6,039 GBP to £27,606 GBP

A
Cheapest Retailer
-
£6,039 GBP
$8,092 USD
A
Retailer 2
-
£6,848 GBP
$9,176 USD
View
A
Retailer 3
-
£7,162 GBP
View
A
Retailer 4
-
£7,521 GBP
$10,077 USD
View
Final sale: no returns
A
Retailer 5
-
£7,713 GBP
$10,335 USD
View
A
Retailer 6
-
£8,232 GBP
$11,030 USD
View
A
Retailer 7
-
£8,528 GBP
$11,426 USD
View
A
Retailer 8
-
£8,554 GBP
$11,462 USD
View
B+
Retailer 9
-
£10,193 GBP
View
B+
Retailer 10
-
£12,318 GBP
View
B+
Retailer 11
-
£13,662 GBP
€17,434 EUR
View
B+
Retailer 12
-
£13,814 GBP
View
B+
Retailer 13
-
£14,305 GBP
$19,167 USD
View
B
Retailer 14
-
£16,300 GBP
$21,840 USD
View
B
Retailer 15
-
£18,303 GBP
ZAR 396,190 ZAR
View
B
Retailer 16
-
£21,439 GBP
$28,726 USD
View
B
Retailer 17
-
£23,844 GBP
$31,948 USD
View
B
Retailer 18
-
£26,725 GBP
$35,808 USD
View
Most Expensive
B
Frank Darling
FK90225LGMY · Oct 31
£27,606 GBP
$36,989 USD
View
18 more retailers have this diamond
Prices start from £6,039 GBPSave up to £21,567 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
4.03ct Marquise
£6,039 GBP