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Cushion|Lab Grown|IGI

1.26ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG816615261

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816615261

Diamond specifications and retailer prices

From £347 GBP
$465 USD
As of November 1, 2026
Save £1,457 GBP (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,803 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.26ct lab-grown cushion diamond

This 1.26ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816615261 or 816615261. Listed at 15 retailers as of November 1, 2026, with prices from £347 to £1,803, a £1,457 spread on the same certified stone. Brilliant Earth lists it at £1,803. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.26
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615261
Dimensions7.73 × 5.51 × 3.61 mm
L/W Ratio1.40
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
7.73 mm5.51 mm1.26 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615261
Side View
Table 61.0%Crown 33.7°Girdle: STK-VTKPavilion 33.4°Culet: NoneDepth 65.5%

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 1
Current: £1,803 GBP|Low: £333 GBP|High: £2,114 GBP|Avg: £972 GBP|-11.0%
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
Retailer 14
Retailer 15
November 2, 2026
Retailer 10£347 GBP
Retailer 14£369 GBP
Retailer 13£559 GBP
Retailer 12£580 GBP
Retailer 5£586 GBP
Retailer 9£601 GBP
Retailer 8£637 GBP
Retailer 15£654 GBP
Retailer 2£896 GBP
Retailer 4£1,079 GBP
Retailer 3£1,213 GBP
Retailer 7£1,218 GBP
Retailer 6£1,291 GBP
Retailer 11£1,442 GBP
Brilliant Earth£1,803 GBP

34 data points across 15 retailers

15 retailers£347 GBP to £1,803 GBP

A
Cheapest Retailer
-
£347 GBP
$465 USD
Final sale: no returns
Retailer 2
-
£369 GBP
$495 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
£559 GBP
$750 USD
View
A
Retailer 4
-
£580 GBP
€741 EUR
View
A
Retailer 5
-
£586 GBP
$786 USD
View
A
Retailer 6
-
£601 GBP
View
A
Retailer 7
-
£637 GBP
ZAR 13,800 ZAR
View
A
Retailer 8
-
£654 GBP
$877 USD
View
B+
Retailer 9
-
£896 GBP
$1,203 USD
View
B+
Retailer 10
-
£1,079 GBP
View
B+
Retailer 11
-
£1,213 GBP
$1,628 USD
View
Retailer 12
-
£1,218 GBP
$1,635 USD
View
Price last confirmed 19 days ago
B+
Retailer 13
-
£1,291 GBP
SGD 2,342 SGD
View
B+
Retailer 14
-
£1,442 GBP
View
Most Expensive
B
Brilliant Earth
21421117A · Nov 2
£1,803 GBP
$2,420 USD
View
14 more retailers have this diamond
Prices start from £347 GBPSave up to £1,457 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
1.26ct Cushion
£347 GBP