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Cushion|Lab Grown|IGI

6.50ct D VS1 Cushion Lab Grown Diamond

VG • D/VS1 • IGI LG799626060

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG799626060

Diamond specifications and retailer prices

From £1,425 GBP
$1,910 USD
As of October 31, 2026
Save £3,140 GBP (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £9,962 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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG799626060 or 799626060. Listed at 12 retailers as of October 30, 2026, with a 220% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

6.50
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799626060
Dimensions11.74 × 9.53 × 6.62 mm
L/W Ratio1.23
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.74 mm9.53 mm6.50 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799626060
Side View
Table 65.0%Crown 32.6°Girdle: THN-MEDPavilion 37°Culet: NoneDepth 69.5%

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: Oct 31
Current: £9,962 GBP|Low: £1,298 GBP|High: £9,962 GBP|Avg: £3,434 GBP
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 10£1,298 GBP
Retailer 9£1,374 GBP
Retailer 6£1,425 GBP
Retailer 13£1,559 GBP
Retailer 5£1,860 GBP
Retailer 2£2,041 GBP
Retailer 7£2,410 GBP
Retailer 3£3,139 GBP
Retailer 12£3,499 GBP
Retailer 11£3,800 GBP
Retailer 8£4,500 GBP
Retailer 4£4,565 GBP
Queensmith£9,962 GBP

23 data points across 13 retailers

12 retailers£1,425 GBP to £4,565 GBP

Retailer 1
-
£1,298 GBP
$1,739 USD
Price last confirmed 19 days ago
Retailer 2
-
£1,374 GBP
View
Price last confirmed 14 days ago
A
Retailer 3
-
£1,425 GBP
$1,910 USD
View
A
Retailer 4
-
£1,559 GBP
$2,089 USD
View
A
Retailer 5
-
£2,041 GBP
€2,605 EUR
View
Retailer 6
-
£2,410 GBP
A$4,967 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£3,139 GBP
View
B+
Retailer 8
-
£3,499 GBP
$4,688 USD
View
B+
Retailer 9
-
£3,800 GBP
$5,092 USD
View
Retailer 10
-
£4,500 GBP
$6,030 USD
View
Price last confirmed 10 days ago
B
Retailer 11
-
£4,565 GBP
$6,117 USD
View
Most Expensive
Queensmith
LG799626060 · Oct 9
£9,962 GBP
View
Price last confirmed 22 days ago
11 more retailers have this diamond
Prices start from £1,425 GBPSave up to £3,140 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
£1,425 GBP