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1.28ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG844611584

Shape and cutting style on the report: Round brilliant

Certificate IGI LG844611584

Diamond specifications and retailer prices

From £288 GBP
$386 USD
As of November 1, 2026
Save £469 GBP (62%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £757 GBP at MOH London · As of November 1, 2026
View at MOH London

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 G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG844611584 or 844611584. Listed at 5 retailers as of November 1, 2026, with prices from £288 to £757, a £469 spread on the same certified stone. MOH London lists it at £757. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844611584
Dimensions7.00 × 7.05 × 4.25 mm
L/W Ratio1.01
Girdle conditionFaceted
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 Faint Blue
Top View
7.00 mm7.05 mm1.28 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844611584
Side View
Table 58.0%Crown 33.6°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £757 GBP|Low: £287 GBP|High: £757 GBP|Avg: £415 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 3£288 GBP
Retailer 2£289 GBP
Retailer 4£360 GBP
Retailer 5£561 GBP
MOH London£757 GBP

5 data points across 5 retailers

5 retailers£288 GBP to £757 GBP

A
Cheapest Retailer
-
£288 GBP
$386 USD
A
Retailer 2
-
£289 GBP
View
B+
Retailer 3
-
£360 GBP
$483 USD
View
B
Retailer 4
-
£561 GBP
$753 USD
View
Most Expensive
B
MOH London
LG844611584 · Nov 1
£757 GBP
View
4 more retailers have this diamond
Prices start from £288 GBPSave up to £469 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
£288 GBP