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1.32ct J SI1 Round Lab Grown Diamond

GD • J/SI1 • IGI LG436073458

Shape and cutting style on the report: Round modified brilliant

Certificate IGI LG436073458

Diamond specifications and retailer prices

From £441 GBP
As of November 6, 2026
Save £16 GBP (3%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £456 GBP at B2C Jewels · As of November 4, 2026
View at B2C Jewels

About this 1.32ct lab-grown round diamond

This 1.32ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG436073458 or 436073458. Listed at 2 retailers as of November 4, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.32
Carat
J
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle42.6°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436073458
Dimensions7.32 × 7.29 × 2.45 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
7.32 mm7.29 mm1.32 ctJ / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436073458
Side View
Table 59.0%Crown 42.6°Girdle: STK-VTKPavilion 34°Culet: NoneDepth 33.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £456 GBP|Low: £422 GBP|High: £456 GBP|Avg: £444 GBP
B2C Jewels
Retailer 2
September 30, 2026
Retailer 2£441 GBP
B2C Jewels£456 GBP

2 data points across 2 retailers

2 retailers£441 GBP to £456 GBP

B+
Cheapest Retailer
-
£441 GBP
Most Expensive
B+
B2C Jewels
34135991 · Nov 4
£456 GBP
$614 USD
View
1 more retailer has this diamond
Prices start from £441 GBPSave up to £16 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+
1.32ct Round
£441 GBP