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Cushion|Lab Grown|IGI

1.55ct F VVS2 Cushion Lab Grown Diamond

ID • F/VVS2 • IGI LG631437420

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG631437420

Diamond specifications and retailer prices

From £212 GBP
As of November 4, 2026
Save £1,262 GBP (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,474 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.55ct lab-grown cushion diamond

This 1.55ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG631437420 or 631437420. Listed at 20 retailers as of November 3, 2026, with prices from £212 to £1,474, a £1,262 spread on the same certified stone. Brilliant Earth lists it at £1,474. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631437420
Dimensions7.40 × 6.21 × 4.13 mm
L/W Ratio1.19
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
7.40 mm6.21 mm1.55 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631437420
Side View
Table 63.0%Crown 36.9°Girdle: MED-THKPavilion 37.1°Culet: NoneDepth 66.5%

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: Nov 4
Current: £1,474 GBP|Low: £212 GBP|High: £1,474 GBP|Avg: £558 GBP
Brilliant Earth
Retailer 2
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Retailer 12
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Retailer 19
November 5, 2026
Retailer 5£212 GBP
Retailer 19£235 GBP
Retailer 7£265 GBP
Retailer 6£317 GBP
Retailer 12£352 GBP
Retailer 15£404 GBP
Retailer 8£412 GBP
Retailer 14£420 GBP
Retailer 4£430 GBP
Retailer 2£443 GBP
Retailer 13£549 GBP
Retailer 17£558 GBP
Retailer 18£725 GBP
Retailer 10£758 GBP
Retailer 16£785 GBP
Retailer 9£792 GBP
Retailer 11£923 GBP
Retailer 3£941 GBP
Brilliant Earth£1,474 GBP

42 data points across 19 retailers

20 retailers£212 GBP to £1,474 GBP

A
Cheapest Retailer
-
£212 GBP
Final sale: no returns
Retailer 2
-
£235 GBP
View
Price last confirmed 11 days ago
A
Retailer 3
-
£265 GBP
View
B+
Retailer 4
-
£317 GBP
View
A
Retailer 5
-
£352 GBP
View
A
Retailer 6
-
£404 GBP
View
A
Retailer 7
-
£412 GBP
View
A
Retailer 8
-
£420 GBP
View
A
Retailer 9
-
£430 GBP
View
A
Retailer 10
-
£443 GBP
View
A
Retailer 11
-
£549 GBP
View
A
Retailer 12
-
£558 GBP
View
Retailer 13
-
£725 GBP
View
Price last confirmed 11 days ago
B+
Retailer 14
-
£758 GBP
View
B+
Retailer 15
-
£785 GBP
View
B+
Retailer 16
-
£792 GBP
View
B+
Retailer 17
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£856 GBP
View
B
Retailer 18
-
£923 GBP
View
Retailer 19
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£941 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
10018734A · Nov 3
£1,474 GBP
$1,990 USD
View
19 more retailers have this diamond
Prices start from £212 GBPSave up to £1,262 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
1.55ct Cushion
£212 GBP