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Round|Lab Grown|IGI

1.27ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG745516979

Shape and cutting style on the report: Round brilliant

Certificate IGI LG745516979

Diamond specifications and retailer prices

From £133 GBP
As of November 3, 2026
Save £637 GBP (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £770 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.27ct lab-grown round diamond

This 1.27ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG745516979 or 745516979. Listed at 20 retailers as of November 2, 2026, with prices from £133 to £770, a £637 spread on the same certified stone. MOH London lists it at £770. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG745516979
Dimensions6.95 × 7.00 × 4.30 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
6.95 mm7.00 mm1.27 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG745516979
Side View
Table 56.0%Crown 33.7°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.6%

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: £770 GBP|Low: £133 GBP|High: £780 GBP|Avg: £372 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 12£133 GBP
Retailer 3£165 GBP
Retailer 7£279 GBP
Retailer 8£284 GBP
Retailer 2£293 GBP
Retailer 4£293 GBP
Retailer 6£363 GBP
Retailer 11£370 GBP
Retailer 9£391 GBP
Retailer 5£406 GBP
Retailer 10£498 GBP
Retailer 13£519 GBP
MOH London£770 GBP

44 data points across 13 retailers

20 retailers£133 GBP to £770 GBP

A
Cheapest Retailer
-
£133 GBP
A
Retailer 2
-
£154 GBP
View
A
Retailer 3
-
£165 GBP
View
Retailer 4
-
£165 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£279 GBP
View
A
Retailer 6
-
£284 GBP
View
A
Retailer 7
-
£293 GBP
View
A
Retailer 8
-
£293 GBP
View
A
Retailer 9
-
£314 GBP
View
B+
Retailer 10
-
£363 GBP
View
B+
Retailer 11
-
£370 GBP
View
B+
Retailer 12
-
£391 GBP
View
B+
Retailer 13
-
£406 GBP
View
Retailer 14
-
£416 GBP
View
Price last confirmed 10 days ago
Retailer 15
-
£498 GBP
View
Price last confirmed 8 days ago
B+
Retailer 16
-
£519 GBP
View
B
Retailer 17
-
£530 GBP
View
B
Retailer 18
-
£538 GBP
View
B
Retailer 19
-
£570 GBP
View
Most Expensive
B
MOH London
LG745516979 · Nov 2
£770 GBP
View
19 more retailers have this diamond
Prices start from £133 GBPSave up to £637 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 Round
£133 GBP