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Cushion|Lab Grown|IGI

8.31ct H VS1 Cushion Lab Grown Diamond

EX • H/VS1

Diamond specifications and retailer prices

From £1,371 GBP
As of November 1, 2026
Save £933 GBP (41%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,304 GBP at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

About this 8.31ct lab-grown cushion diamond

This 8.31ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI. Listed at 2 retailers as of October 30, 2026, with prices from £1,371 to £2,304, a £933 spread on the same certified stone. Diamond Exchange Canada lists it at £2,304. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

8.31
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions11.63 × 11.53 × 7.83 mm
L/W Ratio1.01
Top View
11.63 mm11.53 mm8.31 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 63.0%CrownGirdlePavilionCuletDepth 68.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £2,304 GBP|Low: £1,367 GBP|High: £2,304 GBP|Avg: £1,842 GBP
Diamond Exchange Canada
Retailer 2
November 1, 2026
Retailer 2£1,371 GBP
Diamond Exchange Canada£2,304 GBP

38 data points across 2 retailers

2 retailers£1,371 GBP to £2,304 GBP

A
Cheapest Retailer
-
£1,371 GBP
Most Expensive
B+
Diamond Exchange Canada
1986485894 · Oct 30
£2,304 GBP
CA$4,287 CAD
View
1 more retailer has this diamond
Prices start from £1,371 GBPSave up to £933 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
8.31ct Cushion
£1,371 GBP