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Cushion|Lab Grown|IGI

1.51ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG808607743

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG808607743

Diamond specifications and retailer prices

From £267 GBP
As of November 4, 2026
Save £1,114 GBP (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,382 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.51ct lab-grown cushion diamond

This 1.51ct 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 top-tier cut grade and certified by IGI LG808607743 or 808607743. Listed at 16 retailers as of October 30, 2026, with prices from £267 to £1,382, a £1,114 spread on the same certified stone. Brilliant Earth lists it at £1,382. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG808607743
Dimensions8.76 × 5.97 × 3.86 mm
L/W Ratio1.47
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.76 mm5.97 mm1.51 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG808607743
Side View
Table 56.0%Crown 39.4°Girdle: STK-THKPavilion 38.2°Culet: NoneDepth 64.7%

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: £1,382 GBP|Low: £267 GBP|High: £1,449 GBP|Avg: £630 GBP|-4.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 3£267 GBP
Retailer 4£296 GBP
Retailer 12£400 GBP
Retailer 7£401 GBP
Retailer 11£473 GBP
Retailer 9£511 GBP
Retailer 2£525 GBP
Retailer 5£544 GBP
Retailer 6£696 GBP
Retailer 8£742 GBP
Retailer 13£1,140 GBP
Retailer 10£1,189 GBP
Brilliant Earth£1,382 GBP

44 data points across 13 retailers

16 retailers£267 GBP to £1,382 GBP

A
Cheapest Retailer
-
£267 GBP
Final sale: no returns
Retailer 2
-
£296 GBP
View
Price last confirmed 12 days ago
A
Retailer 3
-
£400 GBP
View
A
Retailer 4
-
£401 GBP
View
A
Retailer 5
-
£407 GBP
View
A
Retailer 6
-
£473 GBP
View
B+
Retailer 7
-
£511 GBP
View
A
Retailer 8
-
£525 GBP
View
B+
Retailer 9
-
£544 GBP
View
B+
Retailer 10
-
£696 GBP
View
B+
Retailer 11
-
£742 GBP
View
Retailer 12
-
£882 GBP
View
Price last confirmed 102 days ago
B
Retailer 13
-
£987 GBP
View
B
Retailer 14
-
£1,140 GBP
View
B
Retailer 15
-
£1,189 GBP
View
Most Expensive
B
Brilliant Earth
20254622A · Oct 30
£1,382 GBP
$1,860 USD
View
15 more retailers have this diamond
Prices start from £267 GBPSave up to £1,114 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
1.51ct Cushion
£267 GBP