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Cushion|Lab Grown|IGI

1.31ct E VVS1 Cushion Lab Grown Diamond

VG • E/VVS1 • IGI LG821654030

Certificate IGI LG821654030

Diamond specifications and retailer prices

From £858 GBP
$1,149 USD
As of October 31, 2026
Save £329 GBP (28%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,187 GBP at Zales · As of October 30, 2026
View at Zales

About this 1.31ct lab-grown cushion diamond

This 1.31ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG821654030 or 821654030. Listed at 4 retailers as of October 30, 2026, with prices from £858 to £1,187, a £329 spread on the same certified stone. Zales lists it at £1,187. 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
E
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG821654030
Dimensions7.72 × 5.61 × 3.91 mm
L/W Ratio1.38
Top View
7.72 mm5.61 mm1.31 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821654030
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: £858 GBP|Low: £858 GBP|High: £1,187 GBP|Avg: £1,115 GBP
Retailer 1
Retailer 2
Retailer 3
Zales
September 26, 2026
Retailer 1£858 GBP
Retailer 2£993 GBP
Retailer 3£1,187 GBP
Zales£1,187 GBP

4 data points across 4 retailers

4 retailers£858 GBP to £1,187 GBP

B
Cheapest Retailer
-
£858 GBP
$1,149 USD
B
Retailer 2
-
£993 GBP
$1,330 USD
View
B
Retailer 3
-
£1,187 GBP
$1,590 USD
View
Most Expensive
B
Zales
529168522 · Oct 30
£1,187 GBP
$1,590 USD
View
3 more retailers have this diamond
Prices start from £858 GBPSave up to £329 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 Cushion
£858 GBP