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Marquise|Lab Grown|IGI

4.03ct D IF Marquise Lab Grown Diamond

VG • D/IF • IGI LG762544606

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG762544606

Diamond specifications and retailer prices

From £7,915 GBP
$10,605 USD
As of October 28, 2026
Save £21,769 GBP (73%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £29,684 GBP at Cape Diamonds · As of October 29, 2026
View at Cape Diamonds

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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG762544606 or 762544606. Listed at 13 retailers as of October 28, 2026, with prices from £7,915 to £29,684, a £21,769 spread on the same certified stone. Cape Diamonds lists it at £29,684. 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
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762544606
Dimensions16.37 × 8.27 × 5.16 mm
L/W Ratio1.98
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
16.37 mm8.27 mm4.03 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762544606
Side View
Table 63.0%Crown 34.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
A
Excellent
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 28
Current: £29,684 GBP|Low: £7,049 GBP|High: £38,908 GBP|Avg: £18,737 GBP|-10.8%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 9£7,915 GBP
Retailer 5£9,302 GBP
Retailer 4£9,639 GBP
Retailer 13£10,685 GBP
Retailer 10£12,503 GBP
Retailer 11£15,233 GBP
Retailer 6£15,343 GBP
Retailer 8£22,022 GBP
Retailer 12£22,829 GBP
Retailer 7£23,732 GBP
Retailer 2£24,141 GBP
Cape Diamonds£29,684 GBP
Retailer 3£38,908 GBP

29 data points across 13 retailers

13 retailers£7,915 GBP to £29,684 GBP

A
Cheapest Retailer
-
£7,915 GBP
$10,605 USD
B+
Retailer 2
-
£9,302 GBP
$12,464 USD
View
B+
Retailer 3
-
£10,685 GBP
$14,317 USD
View
B+
Retailer 4
-
£12,503 GBP
$16,752 USD
View
B
Retailer 5
-
£15,233 GBP
$20,410 USD
View
B+
Retailer 6
-
£15,343 GBP
View
B
Retailer 7
-
£22,022 GBP
View
B
Retailer 8
-
£22,829 GBP
$30,589 USD
View
B
Retailer 9
-
£23,732 GBP
€30,284 EUR
View
B
Retailer 10
-
£24,141 GBP
A$49,764 AUD
View
Most Expensive
B
Cape Diamonds
cert_762544606 · Oct 29
£29,684 GBP
ZAR 642,547 ZAR
View
10 more retailers have this diamond
Prices start from £7,915 GBPSave up to £21,769 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
£7,915 GBP