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Cushion|Lab Grown|IGI

1.64ct D VVS2 Cushion Lab Grown Diamond

ID • D/VVS2 • IGI LG665409423

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG665409423

Diamond specifications and retailer prices

From £232 GBP
$309 USD
As of October 29, 2026
Save £1,728 GBP (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,960 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.64ct lab-grown cushion diamond

This 1.64ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG665409423 or 665409423. Listed at 18 retailers as of October 29, 2026, with prices from £232 to £1,960, a £1,728 spread on the same certified stone. Brilliant Earth lists it at £1,960. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
D
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.6°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665409423
Dimensions7.14 × 6.91 × 4.64 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.14 mm6.91 mm1.64 ctD / VVS2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG665409423
Side View
Table 63.0%Crown 38.6°Girdle: THK-VTKPavilion 41.8°Culet: NoneDepth 67.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,960 GBP|Low: £231 GBP|High: £2,065 GBP|Avg: £700 GBP|-5.1%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
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Retailer 18
October 29, 2026
Retailer 12£232 GBP
Retailer 3£258 GBP
Retailer 8£406 GBP
Retailer 5£425 GBP
Retailer 14£443 GBP
Retailer 11£443 GBP
Retailer 2£454 GBP
Retailer 18£458 GBP
Retailer 17£508 GBP
Retailer 4£689 GBP
Retailer 7£867 GBP
Retailer 9£964 GBP
Retailer 15£1,007 GBP
Retailer 13£1,039 GBP
Retailer 16£1,055 GBP
Retailer 6£1,080 GBP
Retailer 10£1,103 GBP
Brilliant Earth£1,960 GBP

41 data points across 18 retailers

18 retailers£232 GBP to £1,960 GBP

A
Cheapest Retailer
-
£232 GBP
$309 USD
Final sale: no returns
A
Retailer 2
-
£258 GBP
$343 USD
View
A
Retailer 3
-
£406 GBP
$540 USD
View
A
Retailer 4
-
£425 GBP
$566 USD
View
A
Retailer 5
-
£443 GBP
ZAR 9,528 ZAR
View
A
Retailer 6
-
£443 GBP
€562 EUR
View
A
Retailer 7
-
£454 GBP
View
A
Retailer 8
-
£458 GBP
$610 USD
View
A
Retailer 9
-
£508 GBP
$676 USD
View
B+
Retailer 10
-
£689 GBP
$918 USD
View
B+
Retailer 11
-
£867 GBP
$1,154 USD
View
B
Retailer 12
-
£964 GBP
$1,284 USD
View
B
Retailer 13
-
£1,007 GBP
View
B
Retailer 14
-
£1,039 GBP
View
Retailer 15
-
£1,055 GBP
$1,405 USD
View
Price last confirmed 8 days ago
B
Retailer 16
-
£1,080 GBP
$1,439 USD
View
B
Retailer 17
-
£1,126 GBP
$1,499 USD
View
Most Expensive
B
Brilliant Earth
13244189A · Oct 29
£1,960 GBP
$2,610 USD
View
17 more retailers have this diamond
Prices start from £232 GBPSave up to £1,728 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
1.64ct Cushion
£232 GBP