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Round|Lab Grown|IGI

1.25ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG713551000

Shape and cutting style on the report: Round brilliant

Certificate IGI LG713551000

Diamond specifications and retailer prices

From £379 GBP
As of November 4, 2026
Save £524 GBP (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £902 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.25ct lab-grown round diamond

This 1.25ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG713551000 or 713551000. Listed at 7 retailers as of November 1, 2026, with prices from £379 to £902, a £524 spread on the same certified stone. MOH London lists it at £902. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG713551000
Dimensions7.00 × 6.95 × 4.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.00 mm6.95 mm1.25 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG713551000
Side View
Table 56.0%Crown 33.2°GirdlePavilion 40.8°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
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 4
Current: £902 GBP|Low: £360 GBP|High: £937 GBP|Avg: £640 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 4£379 GBP
Retailer 2£422 GBP
Retailer 5£459 GBP
Retailer 6£653 GBP
Retailer 7£761 GBP
Retailer 3£874 GBP
MOH London£902 GBP

41 data points across 7 retailers

7 retailers£379 GBP to £902 GBP

A
Cheapest Retailer
-
£379 GBP
A
Retailer 2
-
£422 GBP
View
B+
Retailer 3
-
£459 GBP
View
B+
Retailer 4
-
£653 GBP
View
B
Retailer 5
-
£761 GBP
View
B
Retailer 6
-
£874 GBP
View
Most Expensive
B
MOH London
LG713551000 · Nov 1
£902 GBP
View
6 more retailers have this diamond
Prices start from £379 GBPSave up to £524 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
1.25ct Round
£379 GBP