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Cushion|Lab Grown|IGI

8.54ct H VS1 Cushion Lab Grown Diamond

EX • H/VS1 • IGI LG846643382

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846643382

Diamond specifications and retailer prices

From £943 GBP
$1,263 USD
As of October 31, 2026
Save £3,662 GBP (80%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £4,605 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 8.54ct lab-grown cushion diamond

This 8.54ct 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 LG846643382 or 846643382. Listed at 3 retailers as of October 31, 2026, with prices from £943 to £4,605, a £3,662 spread on the same certified stone. Brilliant Earth lists it at £4,605. 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

8.54
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846643382
Dimensions14.34 × 10.68 × 7.06 mm
L/W Ratio1.34
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.34 mm10.68 mm8.54 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846643382
Side View
Table 63.0%Crown 35.1°Girdle: MED-THKPavilion 35.8°Culet: NoneDepth 66.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £4,605 GBP|Low: £943 GBP|High: £4,605 GBP|Avg: £2,458 GBP
Brilliant Earth
Retailer 2
Retailer 3
October 31, 2026
Retailer 3£943 GBP
Retailer 2£1,437 GBP
Brilliant Earth£4,605 GBP

16 data points across 3 retailers

3 retailers£943 GBP to £4,605 GBP

A
Cheapest Retailer
-
£943 GBP
$1,263 USD
Final sale: no returns
A
Retailer 2
-
£1,437 GBP
View
Most Expensive
B
Brilliant Earth
22002599A · Oct 31
£4,605 GBP
$6,170 USD
View
2 more retailers have this diamond
Prices start from £943 GBPSave up to £3,662 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
8.54ct Cushion
£943 GBP