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Cushion|Lab Grown|IGI

1.27ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG847675987

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG847675987

Diamond specifications and retailer prices

From £240 GBP
As of October 30, 2026
Save £1,141 GBP (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,381 GBP at Brilliant Earth · As of October 30, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG847675987 or 847675987. Listed at 11 retailers as of October 30, 2026, with prices from £240 to £1,381, a £1,141 spread on the same certified stone. Brilliant Earth lists it at £1,381. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847675987
Dimensions7.64 × 5.67 × 3.76 mm
L/W Ratio1.35
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
7.64 mm5.67 mm1.27 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847675987
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 35.1°Culet: NoneDepth 66.3%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,381 GBP|Low: £240 GBP|High: £1,605 GBP|Avg: £761 GBP|-14.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 9£240 GBP
Retailer 2£351 GBP
Retailer 7£355 GBP
Retailer 8£378 GBP
Retailer 3£605 GBP
Retailer 5£640 GBP
Retailer 4£875 GBP
Retailer 10£1,002 GBP
Retailer 11£1,161 GBP
Retailer 6£1,318 GBP
Brilliant Earth£1,381 GBP

4 data points across 11 retailers

11 retailers£240 GBP to £1,381 GBP

A+
Cheapest Retailer
-
£240 GBP
A
Retailer 2
-
£351 GBP
$470 USD
View
A
Retailer 3
-
£355 GBP
$475 USD
View
A
Retailer 4
-
£378 GBP
$506 USD
View
A
Retailer 5
-
£605 GBP
A$1,247 AUD
View
A
Retailer 6
-
£640 GBP
$858 USD
View
B+
Retailer 7
-
£875 GBP
$1,172 USD
View
B+
Retailer 8
-
£1,002 GBP
View
B+
Retailer 9
-
£1,161 GBP
$1,555 USD
View
B
Retailer 10
-
£1,318 GBP
A$2,717 AUD
View
Most Expensive
B+
Brilliant Earth
22336855A · Oct 30
£1,381 GBP
$1,850 USD
View
10 more retailers have this diamond
Prices start from £240 GBPSave up to £1,141 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
£240 GBP