CaratHunter
Plans
Marquise|Lab Grown|IGI

4.05ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG848605892

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG848605892

Diamond specifications and retailer prices

From £526 GBP
$700 USD
As of October 27, 2026
Save £4,258 GBP (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,783 GBP at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

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 LG848605892 or 848605892. Listed at 15 retailers as of October 26, 2026, with prices from £526 to £4,783, a £4,258 spread on the same certified stone. Brilliant Earth lists it at £4,783. 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 angle35.7°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848605892
Dimensions16.69 × 8.41 × 5.19 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
16.69 mm8.41 mm4.05 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848605892
Side View
Table 58.0%Crown 35.7°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 61.7%

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 27
Current: £4,783 GBP|Low: £526 GBP|High: £4,783 GBP|Avg: £1,613 GBP
Brilliant Earth
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
Retailer 15
October 28, 2026
Retailer 8£526 GBP
Retailer 2£529 GBP
Retailer 4£572 GBP
Retailer 6£702 GBP
Retailer 15£743 GBP
Retailer 13£867 GBP
Retailer 12£990 GBP
Retailer 5£1,364 GBP
Retailer 14£1,503 GBP
Retailer 3£1,715 GBP
Retailer 7£2,035 GBP
Retailer 10£2,154 GBP
Retailer 11£2,399 GBP
Retailer 9£3,428 GBP
Brilliant Earth£4,783 GBP

5 data points across 15 retailers

15 retailers£526 GBP to £4,783 GBP

A
Cheapest Retailer
-
£526 GBP
$700 USD
A
Retailer 2
-
£529 GBP
View
A
Retailer 3
-
£572 GBP
$762 USD
View
A
Retailer 4
-
£702 GBP
HK$7,300 HKD
View
A
Retailer 5
-
£743 GBP
$990 USD
View
A
Retailer 6
-
£867 GBP
$1,155 USD
View
A
Retailer 7
-
£990 GBP
$1,319 USD
View
A
Retailer 8
-
£1,364 GBP
$1,817 USD
View
B+
Retailer 9
-
£1,503 GBP
$2,001 USD
View
B+
Retailer 10
-
£1,715 GBP
$2,284 USD
View
B+
Retailer 11
-
£2,035 GBP
SGD 3,662 SGD
View
B+
Retailer 12
-
£2,154 GBP
$2,869 USD
View
B
Retailer 13
-
£2,399 GBP
View
B
Retailer 14
-
£3,428 GBP
$4,565 USD
View
Most Expensive
B
Brilliant Earth
22246145A · Oct 26
£4,783 GBP
$6,370 USD
View
14 more retailers have this diamond
Prices start from £526 GBPSave up to £4,258 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
£526 GBP