Marquise|Lab Grown|IGI

4.05ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG791626085

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG791626085

Diamond specifications and retailer prices

From £502 GBP
$668 USD
As of October 30, 2026
Save £3,951 GBP (89%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £4,453 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 4.05ct lab-grown marquise diamond

This 4.05ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG791626085 or 791626085. Listed at 23 retailers as of October 29, 2026, with prices from £502 to £4,453, a £3,951 spread on the same certified stone. Do Amore Diamonds lists it at £4,453. 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

4.05
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791626085
Dimensions16.56 × 8.43 × 5.17 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.56 mm8.43 mm4.05 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791626085
Side View
Table 60.0%Crown 33.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.3%

Caratlytics Score

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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 30
Current: £4,453 GBP|Low: £502 GBP|High: £4,453 GBP|Avg: £1,725 GBP
Do Amore Diamonds
Retailer 2
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Retailer 21
October 30, 2026
Retailer 18£502 GBP
Retailer 4£546 GBP
Retailer 2£556 GBP
Retailer 7£562 GBP
Retailer 21£582 GBP
Retailer 17£713 GBP
Retailer 19£822 GBP
Retailer 13£1,031 GBP
Retailer 5£1,039 GBP
Retailer 16£1,367 GBP
Retailer 9£1,386 GBP
Retailer 20£1,486 GBP
Retailer 3£1,805 GBP
Retailer 8£1,991 GBP
Retailer 14£2,000 GBP
Retailer 6£2,297 GBP
Retailer 11£2,405 GBP
Retailer 15£2,535 GBP
Retailer 10£2,812 GBP
Retailer 12£4,385 GBP
Do Amore Diamonds£4,453 GBP

32 data points across 21 retailers

23 retailers£502 GBP to £4,453 GBP

A
Cheapest Retailer
-
£502 GBP
$668 USD
A
Retailer 2
-
£546 GBP
$727 USD
View
A
Retailer 3
-
£556 GBP
View
A
Retailer 4
-
£562 GBP
$748 USD
View
Final sale: no returns
A
Retailer 5
-
£582 GBP
$775 USD
View
Retailer 6
-
£586 GBP
$781 USD
View
Price last confirmed 14 days ago
A
Retailer 7
-
£713 GBP
$950 USD
View
B+
Retailer 8
-
£822 GBP
$1,094 USD
View
A
Retailer 9
-
£1,031 GBP
View
A
Retailer 10
-
£1,039 GBP
$1,384 USD
View
A
Retailer 11
-
£1,367 GBP
ZAR 29,399 ZAR
View
Retailer 12
-
£1,386 GBP
A$2,839 AUD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£1,486 GBP
$1,979 USD
View
B+
Retailer 14
-
£1,805 GBP
$2,404 USD
View
B+
Retailer 15
-
£1,991 GBP
View
B+
Retailer 16
-
£2,000 GBP
$2,663 USD
View
B+
Retailer 17
-
£2,297 GBP
$3,060 USD
View
Retailer 18
-
£2,405 GBP
A$4,928 AUD
View
Price last confirmed 21 days ago
B+
Retailer 19
-
£2,535 GBP
View
B
Retailer 20
-
£2,812 GBP
$3,745 USD
View
Retailer 21
-
£4,138 GBP
$5,510 USD
View
Price last confirmed 42 days ago
B
Retailer 22
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£4,385 GBP
$5,840 USD
View
Most Expensive
B
Do Amore Diamonds
27-E4D9514C5 · Oct 29
£4,453 GBP
$5,930 USD
View
22 more retailers have this diamond
Prices start from £502 GBPSave up to £3,951 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
4.05ct Marquise
£502 GBP