CaratHunter
Plans
Marquise|Lab Grown|IGI

4.05ct H VS1 Marquise Lab Grown Diamond

ID • H/VS1 • IGI LG808627086

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG808627086

Diamond specifications and retailer prices

From £2,388 GBP
$3,200 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: £2,388 GBP at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG808627086 or 808627086. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG808627086
Dimensions16.59 × 8.08 × 5.22 mm
L/W Ratio2.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.59 mm8.08 mm4.05 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG808627086
Side View
Table 60.0%Crown 37.9°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £2,388 GBP|Low: £691 GBP|High: £4,269 GBP|Avg: £1,910 GBP|-44.1%
Brilliant Earth
Retailer 2
Retailer 3
July 15, 2026
Retailer 3£691 GBP
Retailer 2£1,898 GBP
Brilliant Earth£2,388 GBP

8 data points across 3 retailers

1 retailer

B
Brilliant Earth
20226693A · Oct 31
£2,388 GBP
$3,200 USD
View

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.

B
4.05ct Marquise
£2,388 GBP