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Marquise|Lab Grown|IGI

4.57ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG806615995

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG806615995

Diamond specifications and retailer prices

From £744 GBP
HK$7,800 HKD
As of October 30, 2026
Save £3,325 GBP (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,069 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 4.57ct lab-grown marquise diamond

This 4.57ct 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 LG806615995 or 806615995. Listed at 15 retailers as of October 28, 2026, with prices from £744 to £4,069, a £3,325 spread on the same certified stone. Rare Carat lists it at £4,069. 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

4.57
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG806615995
Dimensions16.91 × 8.80 × 5.29 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.91 mm8.80 mm4.57 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG806615995
Side View
Table 60.0%Crown 36.1°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 60.1%

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 30
Current: £4,069 GBP|Low: £744 GBP|High: £4,456 GBP|Avg: £2,120 GBP|-1.1%
Rare Carat
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 31, 2026
Retailer 11£744 GBP
Retailer 4£918 GBP
Retailer 13£989 GBP
Retailer 14£1,038 GBP
Retailer 5£1,053 GBP
Retailer 3£1,413 GBP
Retailer 7£1,510 GBP
Retailer 10£1,532 GBP
Retailer 8£2,150 GBP
Retailer 6£2,244 GBP
Retailer 15£2,557 GBP
Retailer 2£2,653 GBP
Retailer 9£3,039 GBP
Retailer 12£3,935 GBP
Rare Carat£4,069 GBP

39 data points across 15 retailers

15 retailers£744 GBP to £4,069 GBP

A
Cheapest Retailer
-
£744 GBP
HK$7,800 HKD
A
Retailer 2
-
£918 GBP
$1,232 USD
View
A
Retailer 3
-
£989 GBP
€1,264 EUR
View
A
Retailer 4
-
£1,038 GBP
View
A
Retailer 5
-
£1,053 GBP
$1,413 USD
View
A
Retailer 6
-
£1,413 GBP
$1,896 USD
View
A
Retailer 7
-
£1,510 GBP
A$3,118 AUD
View
A
Retailer 8
-
£1,532 GBP
$2,056 USD
View
B+
Retailer 9
-
£2,150 GBP
SGD 3,898 SGD
View
B+
Retailer 10
-
£2,244 GBP
$3,011 USD
View
B+
Retailer 11
-
£2,557 GBP
View
B
Retailer 12
-
£2,653 GBP
A$5,478 AUD
View
B
Retailer 13
-
£3,039 GBP
$4,078 USD
View
B
Retailer 14
-
£3,935 GBP
$5,280 USD
View
Most Expensive
B
Rare Carat
152494-BB · Oct 28
£4,069 GBP
$5,460 USD
View
14 more retailers have this diamond
Prices start from £744 GBPSave up to £3,325 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
4.57ct Marquise
£744 GBP