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Marquise|Lab Grown|IGI

4.03ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG829608667

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG829608667

Diamond specifications and retailer prices

From £2,839 GBP
As of October 30, 2026
Save £9,204 GBP (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £12,043 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.03ct lab-grown marquise diamond

This 4.03ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG829608667 or 829608667. Listed at 18 retailers as of October 30, 2026, with prices from £2,839 to £12,043, a £9,204 spread on the same certified stone. Taylor and Hart lists it at £12,043. 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

4.03
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG829608667
Dimensions16.02 × 8.10 × 5.23 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.02 mm8.10 mm4.03 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG829608667
Side View
Table 59.0%Crown 36.7°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 64.6%

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 30
Current: £8,829 GBP|Low: £2,829 GBP|High: £12,043 GBP|Avg: £6,469 GBP|-18.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Taylor and Hart
October 30, 2026
Retailer 7£2,839 GBP
Retailer 6£3,441 GBP
Retailer 2£3,656 GBP
Retailer 8£4,457 GBP
Retailer 5£4,491 GBP
Retailer 3£4,506 GBP
Retailer 12£4,926 GBP
Retailer 11£5,482 GBP
Retailer 9£7,232 GBP
Retailer 10£7,317 GBP
Retailer 13£7,397 GBP
Retailer 14£8,198 GBP
Retailer 1£8,829 GBP
Retailer 4£11,599 GBP
Taylor and Hart£12,043 GBP

28 data points across 15 retailers

18 retailers£2,839 GBP to £12,043 GBP

A+
Cheapest Retailer
-
£2,839 GBP
A
Retailer 2
-
£2,929 GBP
$3,925 USD
View
A
Retailer 3
-
£3,398 GBP
$4,553 USD
View
A
Retailer 4
-
£3,441 GBP
$4,610 USD
View
A
Retailer 5
-
£3,656 GBP
$4,898 USD
View
Final sale: no returns
A
Retailer 6
-
£4,457 GBP
View
A
Retailer 7
-
£4,491 GBP
$6,017 USD
View
A
Retailer 8
-
£4,506 GBP
$6,038 USD
View
A
Retailer 9
-
£4,754 GBP
View
A
Retailer 10
-
£4,926 GBP
$6,600 USD
View
A
Retailer 11
-
£5,482 GBP
€6,995 EUR
View
A
Retailer 12
-
£7,232 GBP
ZAR 156,534 ZAR
View
A
Retailer 13
-
£7,317 GBP
View
Retailer 14
-
£7,397 GBP
A$15,247 AUD
View
Price last confirmed 8 days ago
A
Retailer 15
-
£8,198 GBP
$10,984 USD
View
A
Retailer 16
-
£8,829 GBP
$11,830 USD
View
B+
Retailer 17
-
£11,599 GBP
SGD 21,001 SGD
View
Most Expensive
B+
Taylor and Hart
K3UKP8L · Oct 30
£12,043 GBP
$16,136 USD
View
17 more retailers have this diamond
Prices start from £2,839 GBPSave up to £9,204 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
£2,839 GBP