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Cushion|Lab Grown|IGI

6.57ct D VVS2 Cushion Lab Grown Diamond

ID • D/VVS2 • IGI LG841650845

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG841650845

Diamond specifications and retailer prices

From £1,629 GBP
$2,186 USD
As of November 1, 2026
Save £4,543 GBP (74%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £6,524 GBP at Helzberg Diamonds · As of October 13, 2026
View at Helzberg Diamonds

About this 6.57ct lab-grown cushion diamond

This 6.57ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG841650845 or 841650845. Listed at 18 retailers as of November 1, 2026, with a 279% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

6.57
Carat
D
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841650845
Dimensions13.58 × 9.41 × 6.23 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.58 mm9.41 mm6.57 ctD / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841650845
Side View
Table 62.0%Crown 36°Girdle: MED-STKPavilion 34.4°Culet: NoneDepth 66.2%

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: £2,541 GBP|Low: £1,629 GBP|High: £6,267 GBP|Avg: £3,433 GBP|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 8£1,629 GBP
Retailer 10£1,746 GBP
Retailer 6£1,811 GBP
Retailer 16£1,950 GBP
Retailer 11£2,320 GBP
Retailer 13£2,413 GBP
Retailer 1£2,541 GBP
Retailer 14£3,126 GBP
Retailer 2£3,203 GBP
Retailer 17£3,265 GBP
Retailer 5£3,676 GBP
Retailer 3£4,352 GBP
Retailer 12£4,818 GBP
Retailer 15£5,238 GBP
Retailer 9£5,635 GBP
Retailer 7£5,906 GBP
Retailer 4£6,172 GBP

22 data points across 17 retailers

18 retailers£1,629 GBP to £6,172 GBP

A
Cheapest Retailer
-
£1,629 GBP
$2,186 USD
Final sale: no returns
A
Retailer 2
-
£1,746 GBP
View
A
Retailer 3
-
£1,811 GBP
$2,430 USD
View
A
Retailer 4
-
£1,950 GBP
$2,617 USD
View
A
Retailer 5
-
£2,320 GBP
View
A
Retailer 6
-
£2,413 GBP
$3,238 USD
View
A
Retailer 7
-
£2,541 GBP
€3,248 EUR
View
B+
Retailer 8
-
£3,126 GBP
A$6,453 AUD
View
B+
Retailer 9
-
£3,203 GBP
View
B+
Retailer 10
-
£3,265 GBP
ZAR 70,775 ZAR
View
B+
Retailer 11
-
£3,676 GBP
$4,933 USD
View
B+
Retailer 12
-
£4,352 GBP
$5,840 USD
View
B+
Retailer 13
-
£4,818 GBP
View
B
Retailer 14
-
£5,238 GBP
A$10,813 AUD
View
B+
Retailer 15
-
£5,635 GBP
SGD 10,218 SGD
View
B
Retailer 16
-
£5,906 GBP
$7,926 USD
View
B
Retailer 17
-
£6,172 GBP
$8,282 USD
View
Most Expensive
Helzberg Diamonds
ZXZOKHMLGOKL · Oct 13
£6,524 GBP
$8,755 USD
View
Price last confirmed 21 days ago
17 more retailers have this diamond
Prices start from £1,629 GBPSave up to £4,543 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
6.57ct Cushion
£1,629 GBP