Oval|Lab Grown|IGI

1.28ct F VS2 Oval Lab Grown Diamond

ID • F/VS2 • IGI LG783613990

Shape and cutting style on the report: Decagonal step cut

Certificate IGI LG783613990

Diamond specifications and retailer prices

From £296 GBP
As of November 4, 2026
Save £984 GBP (77%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,279 GBP at MOH London · As of November 3, 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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG783613990 or 783613990. Listed at 5 retailers as of November 3, 2026, with prices from £296 to £1,279, a £984 spread on the same certified stone. MOH London lists it at £1,279. 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
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle42.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783613990
Dimensions9.07 × 5.96 × 2.99 mm
L/W Ratio1.52
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.07 mm5.96 mm1.28 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783613990
Side View
Table 69.0%Crown 38.4°Girdle: MED-STKPavilion 42.8°Culet: NoneDepth 50.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,279 GBP|Low: £296 GBP|High: £66,771 GBP|Avg: £2,432 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 5£296 GBP
Retailer 4£441 GBP
Retailer 2£526 GBP
Retailer 3£587 GBP
MOH London£1,279 GBP

22 data points across 5 retailers

5 retailers£296 GBP to £1,279 GBP

A
Cheapest Retailer
-
£296 GBP
Final sale: no returns
B+
Retailer 2
-
£441 GBP
View
B+
Retailer 3
-
£526 GBP
View
Retailer 4
-
£587 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
MOH London
LG783613990 · Nov 3
£1,279 GBP
View
4 more retailers have this diamond
Prices start from £296 GBPSave up to £984 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
£296 GBP