CaratHunter
Plans
Radiant|Lab Grown|IGI

1.40ct H VS2 Radiant Lab Grown Diamond

ID • H/VS2 • IGI LG640412309

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG640412309

Diamond specifications and retailer prices

From £344 GBP
As of October 31, 2026
Save £341 GBP (50%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £686 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.4ct lab-grown radiant diamond

This 1.4ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG640412309 or 640412309. Listed at 2 retailers as of October 31, 2026, with prices from £344 to £686, a £341 spread on the same certified stone. Brilliant Earth lists it at £686. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
H
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle26.4°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640412309
Dimensions7.90 × 5.64 × 3.72 mm
L/W Ratio1.40
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.90 mm5.64 mm1.40 ctH / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640412309
Side View
Table 66.0%Crown 26.4°Girdle: MediumPavilion 34.6°Culet: NoneDepth 66.0%

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 31
Current: £686 GBP|Low: £398 GBP|High: £965 GBP|Avg: £611 GBP|-5.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
January 4, 2026
Retailer 5£398 GBP
Retailer 3£488 GBP
Retailer 2£547 GBP
Brilliant Earth£686 GBP
Retailer 4£965 GBP

10 data points across 5 retailers

2 retailers£344 GBP to £686 GBP

A
Cheapest Retailer
-
£344 GBP
Most Expensive
B
Brilliant Earth
14251191A · Oct 31
£686 GBP
$920 USD
View
1 more retailer has this diamond
Prices start from £344 GBPSave up to £341 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
1.40ct Radiant
£344 GBP