Princess|Lab Grown|IGI

1.26ct D FL Princess Lab Grown Diamond

ID • D/FL • IGI LG754514978

Shape and cutting style on the report: Princess cut

Certificate IGI LG754514978

Diamond specifications and retailer prices

From £337 GBP
$451 USD
As of October 30, 2026
Save £1,932 GBP (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,269 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.26ct lab-grown princess diamond

This 1.26ct lab-grown princess 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 LG754514978 or 754514978. Listed at 21 retailers as of October 30, 2026, with prices from £337 to £2,269, a £1,932 spread on the same certified stone. Brilliant Earth lists it at £2,269. 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 angle48.4°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754514978
Dimensions5.89 × 5.82 × 4.16 mm
L/W Ratio1.01
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
5.89 mm5.82 mm1.26 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754514978
Side View
Table 68.0%Crown 48.4°Girdle: MediumPavilion 36.7°Culet: NoneDepth 71.5%

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: Oct 30
Current: £2,269 GBP|Low: £337 GBP|High: £2,440 GBP|Avg: £1,118 GBP|-5.9%
Brilliant Earth
Retailer 2
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Retailer 12
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Retailer 20
November 1, 2026
Retailer 6£337 GBP
Retailer 4£376 GBP
Retailer 18£377 GBP
Retailer 14£417 GBP
Retailer 11£559 GBP
Retailer 16£560 GBP
Retailer 20£587 GBP
Retailer 3£653 GBP
Retailer 19£668 GBP
Retailer 13£690 GBP
Retailer 9£878 GBP
Retailer 10£960 GBP
Retailer 17£1,121 GBP
Retailer 15£1,340 GBP
Retailer 8£1,364 GBP
Retailer 5£1,488 GBP
Retailer 2£1,532 GBP
Retailer 7£1,618 GBP
Retailer 12£1,626 GBP
Brilliant Earth£2,269 GBP

35 data points across 20 retailers

21 retailers£337 GBP to £2,269 GBP

A
Cheapest Retailer
-
£337 GBP
$451 USD
A
Retailer 2
-
£376 GBP
$504 USD
View
Final sale: no returns
A
Retailer 3
-
£377 GBP
$505 USD
View
A
Retailer 4
-
£417 GBP
$559 USD
View
Retailer 5
-
£559 GBP
$749 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
£560 GBP
$750 USD
View
A
Retailer 7
-
£587 GBP
$786 USD
View
A
Retailer 8
-
£653 GBP
$875 USD
View
A
Retailer 9
-
£668 GBP
$895 USD
View
A
Retailer 10
-
£690 GBP
View
A
Retailer 11
-
£878 GBP
€1,120 EUR
View
B+
Retailer 12
-
£960 GBP
ZAR 20,791 ZAR
View
B+
Retailer 13
-
£1,121 GBP
$1,502 USD
View
B+
Retailer 14
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£1,272 GBP
$1,704 USD
View
B+
Retailer 15
-
£1,340 GBP
$1,796 USD
View
B+
Retailer 16
-
£1,364 GBP
$1,828 USD
View
B+
Retailer 17
-
£1,488 GBP
$1,993 USD
View
B+
Retailer 18
-
£1,532 GBP
View
B
Retailer 19
-
£1,618 GBP
$2,168 USD
View
B
Retailer 20
-
£1,626 GBP
View
Most Expensive
B
Brilliant Earth
20095901A · Oct 31
£2,269 GBP
$3,040 USD
View
20 more retailers have this diamond
Prices start from £337 GBPSave up to £1,932 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 Princess
£337 GBP