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Princess|Lab Grown|IGI

1.31ct H VS1 Princess Lab Grown Diamond

EX • H/VS1 • IGI LG848680399

Shape and cutting style on the report: Princess cut

Certificate IGI LG848680399

Diamond specifications and retailer prices

From £130 GBP
As of November 4, 2026
Save £455 GBP (78%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £585 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.31ct lab-grown princess diamond

This 1.31ct lab-grown princess sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG848680399 or 848680399. Listed at 3 retailers as of November 4, 2026, with prices from £130 to £585, a £455 spread on the same certified stone. Brilliant Earth lists it at £585. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848680399
Dimensions6.00 × 5.90 × 4.27 mm
L/W Ratio1.02
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.00 mm5.90 mm1.31 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848680399
Side View
Table 68.0%Crown 33.1°Girdle: MediumPavilion 39°Culet: NoneDepth 72.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £585 GBP|Low: £130 GBP|High: £585 GBP|Avg: £365 GBP
Brilliant Earth
Retailer 2
Retailer 3
November 5, 2026
Retailer 3£130 GBP
Retailer 2£259 GBP
Brilliant Earth£585 GBP

10 data points across 3 retailers

3 retailers£130 GBP to £585 GBP

A
Cheapest Retailer
-
£130 GBP
Final sale: no returns
A
Retailer 2
-
£259 GBP
View
Most Expensive
B
Brilliant Earth
22322222A · Nov 4
£585 GBP
$790 USD
View
2 more retailers have this diamond
Prices start from £130 GBPSave up to £455 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
1.31ct Princess
£130 GBP