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Radiant|Lab Grown|IGI

1.31ct H VS2 Radiant Lab Grown Diamond

VG • H/VS2 • IGI LG514254133

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

Certificate IGI LG514254133

Diamond specifications and retailer prices

From £559 GBP
$750 USD
As of October 31, 2026
Save £635 GBP (53%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,194 GBP at Loose Grown Diamond · As of November 1, 2026
View at Loose Grown Diamond

About this 1.31ct lab-grown radiant diamond

This 1.31ct 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 very-good cut grade and certified by IGI LG514254133 or 514254133. Listed at 4 retailers as of October 31, 2026, with prices from £559 to £1,194, a £635 spread on the same certified stone. Loose Grown Diamond lists it at £1,194. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.31
Carat
H
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.8°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514254133
Dimensions6.96 × 5.35 × 3.75 mm
L/W Ratio1.30
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.96 mm5.35 mm1.31 ctH / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514254133
Side View
Table 66.5%Crown 44.8°Girdle: Slightly ThickPavilion 31.3°Culet: NoneDepth 70.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £1,194 GBP|Low: £559 GBP|High: £2,818 GBP|Avg: £1,285 GBP|+1.6%
Loose Grown Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2£559 GBP
Retailer 6£736 GBP
Retailer 4£742 GBP
Retailer 8£872 GBP
Retailer 9£918 GBP
Retailer 5£1,137 GBP
Loose Grown Diamond£1,194 GBP
Retailer 7£2,125 GBP
Retailer 3£2,797 GBP

12 data points across 9 retailers

4 retailers£559 GBP to £1,194 GBP

B+
Cheapest Retailer
-
£559 GBP
$750 USD
Retailer 2
-
£742 GBP
$996 USD
View
Price last confirmed 16 days ago
Most Expensive
C
Loose Grown Diamond
514254133 · Nov 1
£1,194 GBP
$1,602 USD
View
2 more retailers have this diamond
Prices start from £559 GBPSave up to £635 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.

B+
1.31ct Radiant
£559 GBP