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Radiant|Lab Grown|IGI

1.37ct I VS1 Radiant Lab Grown Diamond

VG • I/VS1 • IGI LG451080467

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

Certificate IGI LG451080467

Diamond specifications and retailer prices

From £411 GBP
As of November 4, 2026
Save £380 GBP (48%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £791 GBP at Taylor and Hart · As of November 4, 2026
View at Taylor and Hart

About this 1.37ct lab-grown radiant diamond

This 1.37ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG451080467 or 451080467. Listed at 2 retailers as of November 4, 2026, with prices from £411 to £791, a £380 spread on the same certified stone. Taylor and Hart lists it at £791. 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

1.37
Carat
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG451080467
Dimensions7.13 × 5.55 × 3.86 mm
L/W Ratio1.28
Culet sizePointed
Cert comments
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Top View
7.13 mm5.55 mm1.37 ctI / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451080467
Side View
Table 61.5%CrownGirdle: UNDPavilionCulet: NoneDepth 69.5%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £411 GBP|Low: £357 GBP|High: £1,023 GBP|Avg: £664 GBP|-15.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Taylor and Hart
November 4, 2026
Retailer 3£383 GBP
Retailer 1£411 GBP
Retailer 5£433 GBP
Retailer 2£478 GBP
Taylor and Hart£791 GBP
Retailer 4£814 GBP

28 data points across 6 retailers

2 retailers£411 GBP to £791 GBP

B+
Cheapest Retailer
-
£411 GBP
Most Expensive
C
Taylor and Hart
BTQZ2XH · Nov 4
£791 GBP
$1,068 USD
View
1 more retailer has this diamond
Prices start from £411 GBPSave up to £380 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+
1.37ct Radiant
£411 GBP