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Heart|Lab Grown|IGI

1.28ct G VVS2 Heart Lab Grown Diamond

EX • G/VVS2 • IGI LG823644565

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG823644565

Diamond specifications and retailer prices

From £146 GBP
As of November 6, 2026
Save £703 GBP (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £849 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.28ct lab-grown heart diamond

This 1.28ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG823644565 or 823644565. Listed at 13 retailers as of November 2, 2026, with prices from £146 to £849, a £703 spread on the same certified stone. MOH London lists it at £849. 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
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823644565
Dimensions6.48 × 7.45 × 4.46 mm
L/W Ratio1.15
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.48 mm7.45 mm1.28 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823644565
Side View
Table 61.0%Crown 36.7°Girdle: STK-THKPavilion 39°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
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 6
Current: £849 GBP|Low: £140 GBP|High: £860 GBP|Avg: £368 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7£146 GBP
Retailer 11£170 GBP
Retailer 3£182 GBP
Retailer 8£182 GBP
Retailer 2£308 GBP
Retailer 10£317 GBP
Retailer 4£329 GBP
Retailer 5£442 GBP
Retailer 9£584 GBP
Retailer 6£586 GBP
MOH London£849 GBP

45 data points across 11 retailers

13 retailers£146 GBP to £849 GBP

A
Cheapest Retailer
-
£146 GBP
A
Retailer 2
-
£170 GBP
View
Retailer 3
-
£182 GBP
View
Price last confirmed 12 days ago
A
Retailer 4
-
£182 GBP
View
A
Retailer 5
-
£308 GBP
View
A
Retailer 6
-
£317 GBP
View
A
Retailer 7
-
£329 GBP
View
B+
Retailer 8
-
£377 GBP
View
B+
Retailer 9
-
£442 GBP
View
B
Retailer 10
-
£584 GBP
View
B
Retailer 11
-
£586 GBP
View
B
Retailer 12
-
£624 GBP
View
Most Expensive
B
MOH London
LG823644565 · Nov 2
£849 GBP
View
12 more retailers have this diamond
Prices start from £146 GBPSave up to £703 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 Heart
£146 GBP