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Marquise|Lab Grown|IGI

4.00ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG845612164

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845612164

Diamond specifications and retailer prices

From £560 GBP
$750 USD
As of November 1, 2026
Save £980 GBP (64%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,540 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 4ct lab-grown marquise diamond

This 4ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG845612164 or 845612164. Listed at 6 retailers as of October 29, 2026, with prices from £560 to £1,540, a £980 spread on the same certified stone. MOH London lists it at £1,540. 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

4.00
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845612164
Dimensions17.05 × 7.93 × 4.79 mm
L/W Ratio2.15
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.05 mm7.93 mm4.00 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845612164
Side View
Table 51.0%Crown 35.7°Girdle: THK-VTKPavilion 35.5°Culet: NoneDepth 60.4%

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: Nov 1
Current: £1,540 GBP|Low: £560 GBP|High: £1,540 GBP|Avg: £948 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6£560 GBP
Retailer 3£636 GBP
Retailer 2£684 GBP
Retailer 4£1,010 GBP
Retailer 5£1,365 GBP
MOH London£1,540 GBP

17 data points across 6 retailers

6 retailers£560 GBP to £1,540 GBP

B+
Cheapest Retailer
-
£560 GBP
$750 USD
A
Retailer 2
-
£636 GBP
€812 EUR
View
A
Retailer 3
-
£684 GBP
View
A
Retailer 4
-
£1,010 GBP
$1,353 USD
View
B+
Retailer 5
-
£1,365 GBP
$1,828 USD
View
Most Expensive
B+
MOH London
LG845612164 · Oct 29
£1,540 GBP
View
5 more retailers have this diamond
Prices start from £560 GBPSave up to £980 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
4.00ct Marquise
£560 GBP