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Cushion|Lab Grown|IGI

6.50ct D VVS2 Cushion Lab Grown Diamond

ID • D/VVS2 • IGI LG797618457

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG797618457

Diamond specifications and retailer prices

From £1,374 GBP
$1,844 USD
As of November 1, 2026
Save £5,668 GBP (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £10,174 GBP at Queensmith · As of October 9, 2026
View at Queensmith

About this 6.5ct lab-grown cushion diamond

This 6.5ct 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 LG797618457 or 797618457. Listed at 17 retailers as of November 1, 2026, with a 412% 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

6.50
Carat
D
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.7°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797618457
Dimensions11.52 × 9.63 × 6.89 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.52 mm9.63 mm6.50 ctD / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG797618457
Side View
Table 63.0%Crown 35.7°Girdle: THK-VTKPavilion 36.5°Culet: NoneDepth 71.5%

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: £1,997 GBP|Low: £1,374 GBP|High: £7,049 GBP|Avg: £2,873 GBP|-1.4%
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
November 3, 2026
Retailer 6£1,374 GBP
Retailer 14£1,423 GBP
Retailer 13£1,481 GBP
Retailer 2£1,550 GBP
Retailer 5£1,674 GBP
Retailer 1£1,997 GBP
Retailer 10£2,034 GBP
Retailer 7£2,203 GBP
Retailer 9£2,754 GBP
Retailer 4£3,836 GBP
Retailer 8£4,066 GBP
Retailer 3£4,128 GBP
Retailer 11£4,847 GBP
Retailer 12£7,042 GBP

41 data points across 14 retailers

17 retailers£1,374 GBP to £7,042 GBP

A
Cheapest Retailer
-
£1,374 GBP
$1,844 USD
Final sale: no returns
Retailer 2
-
£1,423 GBP
$1,910 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
£1,550 GBP
$2,080 USD
View
A
Retailer 4
-
£1,674 GBP
$2,246 USD
View
A
Retailer 5
-
£1,997 GBP
View
A
Retailer 6
-
£2,034 GBP
$2,730 USD
View
A
Retailer 7
-
£2,203 GBP
€2,816 EUR
View
A
Retailer 8
-
£2,754 GBP
ZAR 59,715 ZAR
View
B+
Retailer 9
-
£2,941 GBP
View
B+
Retailer 10
-
£3,534 GBP
$4,742 USD
View
B+
Retailer 11
-
£3,836 GBP
$5,148 USD
View
B+
Retailer 12
-
£4,066 GBP
View
B+
Retailer 13
-
£4,128 GBP
$5,540 USD
View
Retailer 14
-
£4,847 GBP
$6,505 USD
View
Price last confirmed 15 days ago
B
Retailer 15
-
£4,997 GBP
$6,706 USD
View
B
Retailer 16
-
£7,042 GBP
$9,450 USD
View
Most Expensive
Queensmith
LG797618457 · Oct 9
£10,174 GBP
View
Price last confirmed 24 days ago
16 more retailers have this diamond
Prices start from £1,374 GBPSave up to £5,668 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
6.50ct Cushion
£1,374 GBP