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Cushion|Lab Grown|IGI

1.54ct F VS1 Cushion Lab Grown Diamond

GD • F/VS1 • IGI LG555201844

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG555201844

Diamond specifications and retailer prices

From £245 GBP
As of November 4, 2026
Save £1,048 GBP (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,557 GBP at Queensmith · As of October 27, 2026
View at Queensmith

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 VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG555201844 or 555201844. Listed at 14 retailers as of November 4, 2026, with a 427% 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

1.54
Carat
F
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG555201844
Dimensions7.14 × 7.06 × 4.42 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.14 mm7.06 mm1.54 ctF / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG555201844
Side View
Table 59.5%Crown 35.3°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
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: Nov 4
Current: £478 GBP|Low: £245 GBP|High: £1,404 GBP|Avg: £698 GBP|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 3£245 GBP
Retailer 9£273 GBP
Retailer 10£416 GBP
Retailer 12£447 GBP
Retailer 7£470 GBP
Retailer 1£478 GBP
Retailer 2£522 GBP
Retailer 6£639 GBP
Retailer 11£1,048 GBP
Retailer 4£1,064 GBP
Retailer 5£1,089 GBP
Retailer 8£1,293 GBP

42 data points across 12 retailers

14 retailers£245 GBP to £1,293 GBP

A
Cheapest Retailer
-
£245 GBP
Final sale: no returns
Retailer 2
-
£273 GBP
View
Price last confirmed 12 days ago
B+
Retailer 3
-
£413 GBP
View
A
Retailer 4
-
£416 GBP
View
B+
Retailer 5
-
£447 GBP
View
B+
Retailer 6
-
£470 GBP
View
B+
Retailer 7
-
£478 GBP
View
B+
Retailer 8
-
£522 GBP
View
B+
Retailer 9
-
£639 GBP
View
B
Retailer 10
-
£912 GBP
View
B
Retailer 11
-
£1,048 GBP
View
B
Retailer 12
-
£1,089 GBP
View
B
Retailer 13
-
£1,293 GBP
View
Most Expensive
Queensmith
LG555201844 · Oct 27
£1,557 GBP
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from £245 GBPSave up to £1,048 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
£245 GBP