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Round|Lab Grown|IGI

1.28ct F VVS2 Round Lab Grown Diamond

ID • F/VVS2 • IGI LG783655078

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783655078

Diamond specifications and retailer prices

From £154 GBP
As of November 3, 2026
Save £749 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,482 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG783655078 or 783655078. Listed at 18 retailers as of November 3, 2026, with a 486% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783655078
Dimensions7.00 × 7.03 × 4.22 mm
L/W Ratio1.00
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 mm7.03 mm1.28 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783655078
Side View
Table 60.0%Crown 33.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.2%

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: £389 GBP|Low: £148 GBP|High: £911 GBP|Avg: £396 GBP|-4.5%
Retailer 1
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
November 4, 2026
Retailer 14£154 GBP
Retailer 12£172 GBP
Retailer 3£179 GBP
Retailer 2£191 GBP
Retailer 6£191 GBP
Retailer 5£256 GBP
Retailer 9£364 GBP
Retailer 1£389 GBP
Retailer 7£390 GBP
Retailer 8£516 GBP
Retailer 13£616 GBP
Retailer 4£678 GBP
Retailer 10£845 GBP
Retailer 11£881 GBP

43 data points across 14 retailers

18 retailers£154 GBP to £903 GBP

A
Cheapest Retailer
-
£154 GBP
A
Retailer 2
-
£172 GBP
View
Final sale: no returns
A
Retailer 3
-
£179 GBP
View
A
Retailer 4
-
£191 GBP
View
Retailer 5
-
£191 GBP
View
Price last confirmed 11 days ago
B+
Retailer 6
-
£256 GBP
View
A
Retailer 7
-
£264 GBP
View
A
Retailer 8
-
£364 GBP
View
B+
Retailer 9
-
£389 GBP
View
B+
Retailer 10
-
£390 GBP
View
B+
Retailer 11
-
£516 GBP
View
B
Retailer 12
-
£616 GBP
View
B
Retailer 13
-
£678 GBP
View
B
Retailer 14
-
£805 GBP
View
B
Retailer 15
-
£845 GBP
View
B
Retailer 16
-
£881 GBP
View
B
Retailer 17
-
£903 GBP
View
Most Expensive
Do Amore Diamonds
27-46538B2D5 · Nov 4
£1,482 GBP
$2,000 USD
View
Price under review
17 more retailers have this diamond
Prices start from £154 GBPSave up to £749 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 Round
£154 GBP