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Oval|Lab Grown|IGI

1.26ct F IF Oval Lab Grown Diamond

ID • F/IF • IGI LG734521650

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG734521650

Diamond specifications and retailer prices

From £309 GBP
As of November 3, 2026
Save £1,630 GBP (84%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,939 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.26ct lab-grown oval diamond

This 1.26ct lab-grown oval sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG734521650 or 734521650. Listed at 24 retailers as of November 3, 2026, with prices from £309 to £1,939, a £1,630 spread on the same certified stone. Brilliant Earth lists it at £1,939. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.26
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG734521650
Dimensions8.52 × 6.14 × 3.80 mm
L/W Ratio1.39
Girdle conditionFaceted
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
8.52 mm6.14 mm1.26 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG734521650
Side View
Table 59.0%Crown 34.9°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 61.9%

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 3
Current: £1,939 GBP|Low: £309 GBP|High: £1,939 GBP|Avg: £788 GBP
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 5, 2026
Retailer 11£309 GBP
Retailer 13£346 GBP
Retailer 7£383 GBP
Retailer 2£403 GBP
Retailer 4£490 GBP
Retailer 6£539 GBP
Retailer 5£596 GBP
Retailer 8£624 GBP
Retailer 15£661 GBP
Retailer 14£932 GBP
Retailer 9£937 GBP
Retailer 10£999 GBP
Retailer 12£1,232 GBP
Retailer 3£1,407 GBP
Brilliant Earth£1,939 GBP

35 data points across 15 retailers

24 retailers£309 GBP to £1,939 GBP

A
Cheapest Retailer
-
£309 GBP
A
Retailer 2
-
£346 GBP
View
Final sale: no returns
A
Retailer 3
-
£346 GBP
View
Retailer 4
-
£383 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£383 GBP
View
A
Retailer 6
-
£403 GBP
View
A
Retailer 7
-
£490 GBP
View
A
Retailer 8
-
£539 GBP
View
A
Retailer 9
-
£596 GBP
View
B+
Retailer 10
-
£611 GBP
View
A
Retailer 11
-
£624 GBP
View
B+
Retailer 12
-
£661 GBP
View
B+
Retailer 13
-
£688 GBP
View
Retailer 14
-
£876 GBP
View
Price last confirmed 142 days ago
B+
Retailer 15
-
£932 GBP
View
B+
Retailer 16
-
£937 GBP
View
B+
Retailer 17
-
£999 GBP
View
B
Retailer 18
-
£1,075 GBP
View
B
Retailer 19
-
£1,218 GBP
View
B
Retailer 20
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£1,232 GBP
View
B
Retailer 21
-
£1,257 GBP
View
B+
Retailer 22
-
£1,407 GBP
View
B
Retailer 23
-
£1,438 GBP
View
Most Expensive
B
Brilliant Earth
19934419A · Nov 3
£1,939 GBP
$2,610 USD
View
23 more retailers have this diamond
Prices start from £309 GBPSave up to £1,630 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 Oval
£309 GBP