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Marquise|Lab Grown|IGI

4.09ct H VS2 Marquise Lab Grown Diamond

EX • H/VS2 • IGI LG849620083

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG849620083

Diamond specifications and retailer prices

From £625 GBP
$837 USD
As of October 30, 2026
Save £1,275 GBP (67%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,899 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 4.09ct lab-grown marquise diamond

This 4.09ct lab-grown marquise sits in the three to five carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG849620083 or 849620083. Listed at 5 retailers as of October 28, 2026, with prices from £625 to £1,899, a £1,275 spread on the same certified stone. Rare Carat lists it at £1,899. 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

4.09
Carat
H
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849620083
Dimensions16.11 × 8.50 × 5.16 mm
L/W Ratio1.90
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.11 mm8.50 mm4.09 ctH / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG849620083
Side View
Table 60.0%Crown 34.7°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 60.7%

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 30
Current: £1,899 GBP|Low: £625 GBP|High: £1,899 GBP|Avg: £1,101 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 4£625 GBP
Retailer 3£709 GBP
Retailer 2£879 GBP
Retailer 5£1,572 GBP
Rare Carat£1,899 GBP

7 data points across 5 retailers

5 retailers£625 GBP to £1,899 GBP

B+
Cheapest Retailer
-
£625 GBP
$837 USD
A
Retailer 2
-
£709 GBP
$950 USD
View
A
Retailer 3
-
£879 GBP
$1,178 USD
View
B+
Retailer 4
-
£1,572 GBP
View
Most Expensive
B
Rare Carat
SM-55-1400_l_849620083 · Oct 28
£1,899 GBP
$2,545 USD
View
4 more retailers have this diamond
Prices start from £625 GBPSave up to £1,275 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
4.09ct Marquise
£625 GBP