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Oval|Lab Grown|IGI

1.28ct F VS1 Oval Lab Grown Diamond

ID • F/VS1 • IGI LG720540403

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG720540403

Diamond specifications and retailer prices

From £169 GBP
As of November 4, 2026
Save £704 GBP (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £873 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.28ct lab-grown oval diamond

This 1.28ct lab-grown oval 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 LG720540403 or 720540403. Listed at 22 retailers as of November 4, 2026, with prices from £169 to £873, a £704 spread on the same certified stone. MOH London lists it at £873. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720540403
Dimensions8.81 × 6.12 × 3.81 mm
L/W Ratio1.44
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
8.81 mm6.12 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720540403
Side View
Table 62.0%Crown 35.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.3%

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 4
Current: £873 GBP|Low: £145 GBP|High: £886 GBP|Avg: £359 GBP|-0.3%
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
Retailer 14
Retailer 15
November 5, 2026
Retailer 12£151 GBP
Retailer 6£169 GBP
Retailer 4£175 GBP
Retailer 7£187 GBP
Retailer 15£187 GBP
Retailer 13£252 GBP
Retailer 9£321 GBP
Retailer 2£341 GBP
Retailer 11£341 GBP
Retailer 5£370 GBP
Retailer 10£458 GBP
Retailer 14£570 GBP
Retailer 3£602 GBP
Retailer 8£604 GBP
MOH London£873 GBP

41 data points across 15 retailers

22 retailers£169 GBP to £873 GBP

Retailer 1
-
£151 GBP
Price last confirmed 10 days ago
A
Retailer 2
-
£169 GBP
View
Final sale: no returns
Retailer 3
-
£175 GBP
View
Price last confirmed 9 days ago
Retailer 4
-
£187 GBP
View
Price last confirmed 11 days ago
Retailer 5
-
£187 GBP
View
Price last confirmed 7 days ago
A
Retailer 6
-
£208 GBP
View
B+
Retailer 7
-
£252 GBP
View
Retailer 8
-
£321 GBP
View
Price last confirmed 8 days ago
A
Retailer 9
-
£341 GBP
View
Retailer 10
-
£341 GBP
View
Price last confirmed 11 days ago
A
Retailer 11
-
£359 GBP
View
Retailer 12
-
£370 GBP
View
Price last confirmed 7 days ago
Retailer 13
-
£458 GBP
View
Price last confirmed 9 days ago
B+
Retailer 14
-
£489 GBP
View
Retailer 15
-
£559 GBP
View
B
Retailer 16
-
£570 GBP
View
Retailer 17
-
£602 GBP
View
Price last confirmed 8 days ago
B+
Retailer 18
-
£604 GBP
View
B+
Retailer 19
-
£607 GBP
View
B
Retailer 20
-
£637 GBP
View
B
Retailer 21
-
£641 GBP
View
Most Expensive
B
MOH London
LG720540403 · Nov 5
£873 GBP
View
21 more retailers have this diamond
Prices start from £169 GBPSave up to £704 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
1.28ct Oval
£169 GBP