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Cushion|Lab Grown|IGI

1.27ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG648446626

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG648446626

Diamond specifications and retailer prices

From £199 GBP
As of November 6, 2026
Save £809 GBP (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,009 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.27ct lab-grown cushion diamond

This 1.27ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG648446626 or 648446626. Listed at 17 retailers as of November 6, 2026, with prices from £199 to £1,009, a £809 spread on the same certified stone. Brilliant Earth lists it at £1,009. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648446626
Dimensions10.37 × 7.13 × 4.39 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.37 mm7.13 mm1.27 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648446626
Side View
Table 62.0%Crown 35.9°Girdle: MED-STKPavilion 40°Culet: NoneDepth 68.3%

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 6
Current: £1,009 GBP|Low: £173 GBP|High: £1,009 GBP|Avg: £526 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 7, 2026
Retailer 16£199 GBP
Retailer 10£222 GBP
Retailer 12£297 GBP
Retailer 7£326 GBP
Retailer 3£375 GBP
Retailer 14£376 GBP
Retailer 15£387 GBP
Retailer 13£416 GBP
Retailer 9£449 GBP
Retailer 2£471 GBP
Retailer 5£518 GBP
Retailer 8£542 GBP
Retailer 17£752 GBP
Retailer 11£796 GBP
Retailer 6£849 GBP
Retailer 4£986 GBP
Brilliant Earth£1,009 GBP

36 data points across 17 retailers

17 retailers£199 GBP to £1,009 GBP

A
Cheapest Retailer
-
£199 GBP
Final sale: no returns
A
Retailer 2
-
£222 GBP
View
A
Retailer 3
-
£297 GBP
View
A
Retailer 4
-
£326 GBP
View
A
Retailer 5
-
£375 GBP
View
A
Retailer 6
-
£376 GBP
View
A
Retailer 7
-
£387 GBP
View
B+
Retailer 8
-
£416 GBP
View
B+
Retailer 9
-
£449 GBP
View
B+
Retailer 10
-
£471 GBP
View
B+
Retailer 11
-
£518 GBP
View
Retailer 12
-
£542 GBP
View
Price last confirmed 10 days ago
B
Retailer 13
-
£752 GBP
View
B
Retailer 14
-
£796 GBP
View
B
Retailer 15
-
£849 GBP
View
B
Retailer 16
-
£986 GBP
View
Most Expensive
B
Brilliant Earth
11507729A · Nov 6
£1,009 GBP
$1,350 USD
View
16 more retailers have this diamond
Prices start from £199 GBPSave up to £809 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
1.27ct Cushion
£199 GBP