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Cushion|Lab Grown|IGI

8.29ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG800643344

Shape and cutting style on the report: Cushion mixed cut

Certificate IGI LG800643344

Diamond specifications and retailer prices

From £3,715 GBP
$4,978 USD
As of November 1, 2026
Save £9,759 GBP (72%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £13,474 GBP at Adiamor · As of October 31, 2026
View at Adiamor

About this 8.29ct lab-grown cushion diamond

This 8.29ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG800643344 or 800643344. Listed at 6 retailers as of October 31, 2026, with prices from £3,715 to £13,474, a £9,759 spread on the same certified stone. Adiamor lists it at £13,474. 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

8.29
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800643344
Dimensions13.92 × 9.54 × 5.97 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.92 mm9.54 mm8.29 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800643344
Side View
Table 65.0%Crown 50.9°Girdle: MED-STKPavilion 40°Culet: LargeDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £13,474 GBP|Low: £3,192 GBP|High: £13,474 GBP|Avg: £8,090 GBP|+1.1%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 5£3,715 GBP
Retailer 3£4,851 GBP
Retailer 4£5,795 GBP
Retailer 2£7,752 GBP
Retailer 6£13,344 GBP
Adiamor£13,474 GBP

38 data points across 6 retailers

6 retailers£3,715 GBP to £13,474 GBP

A
Cheapest Retailer
-
£3,715 GBP
$4,978 USD
B+
Retailer 2
-
£4,851 GBP
View
B+
Retailer 3
-
£5,795 GBP
$7,764 USD
View
B+
Retailer 4
-
£7,752 GBP
View
B
Retailer 5
-
£13,344 GBP
$17,879 USD
View
Most Expensive
B
Adiamor
D-81077783 · Oct 31
£13,474 GBP
$18,054 USD
View
5 more retailers have this diamond
Prices start from £3,715 GBPSave up to £9,759 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
8.29ct Cushion
£3,715 GBP