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Cushion|Lab Grown|IGI

1.54ct F VVS1 Cushion Lab Grown Diamond

VG • F/VVS1 • IGI LG839680534

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG839680534

Diamond specifications and retailer prices

From £369 GBP
As of November 4, 2026
Save £1,206 GBP (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,575 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.54ct lab-grown cushion diamond

This 1.54ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG839680534 or 839680534. Listed at 11 retailers as of November 4, 2026, with prices from £369 to £1,575, a £1,206 spread on the same certified stone. Brilliant Earth lists it at £1,575. 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

1.54
Carat
F
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839680534
Dimensions6.74 × 6.63 × 4.38 mm
L/W Ratio1.02
Girdle conditionFaceted
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
6.74 mm6.63 mm1.54 ctF / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839680534
Side View
Table 66.0%Crown 36.1°Girdle: MED-THKPavilion 39.3°Culet: NoneDepth 66.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,575 GBP|Low: £369 GBP|High: £1,716 GBP|Avg: £747 GBP|-8.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 10£369 GBP
Retailer 9£406 GBP
Retailer 2£409 GBP
Retailer 5£413 GBP
Retailer 8£474 GBP
Retailer 3£741 GBP
Retailer 6£855 GBP
Retailer 4£874 GBP
Retailer 11£892 GBP
Retailer 7£996 GBP
Brilliant Earth£1,575 GBP

36 data points across 11 retailers

11 retailers£369 GBP to £1,575 GBP

A
Cheapest Retailer
-
£369 GBP
A
Retailer 2
-
£406 GBP
View
A
Retailer 3
-
£409 GBP
View
A
Retailer 4
-
£413 GBP
View
A
Retailer 5
-
£474 GBP
View
B+
Retailer 6
-
£741 GBP
View
Retailer 7
-
£855 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£874 GBP
View
B
Retailer 9
-
£892 GBP
View
B
Retailer 10
-
£996 GBP
View
Most Expensive
B
Brilliant Earth
21648194A · Nov 4
£1,575 GBP
$2,120 USD
View
10 more retailers have this diamond
Prices start from £369 GBPSave up to £1,206 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
1.54ct Cushion
£369 GBP