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Heart|Lab Grown|IGI

1.26ct F VS1 Heart Lab Grown Diamond

ID • F/VS1 • IGI LG803648319

Shape and cutting style on the report: Heart modified brilliant

Certificate IGI LG803648319

Diamond specifications and retailer prices

From £233 GBP
As of November 4, 2026
Save £924 GBP (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,157 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 1.26ct lab-grown heart diamond

This 1.26ct lab-grown heart 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 LG803648319 or 803648319. Listed at 17 retailers as of November 3, 2026, with prices from £233 to £1,157, a £924 spread on the same certified stone. MOH London lists it at £1,157. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.26
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle29.5°
Pavilion angle30.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803648319
Dimensions6.91 × 6.36 × 3.74 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.91 mm6.36 mm1.26 ctF / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG803648319
Side View
Table 58.0%Crown 29.5°Girdle: VTK-ETKPavilion 30.6°Culet: NoneDepth 54.1%

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: £1,157 GBP|Low: £224 GBP|High: £1,171 GBP|Avg: £562 GBP|-1.0%
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
Retailer 16
November 5, 2026
Retailer 4£233 GBP
Retailer 16£260 GBP
Retailer 7£270 GBP
Retailer 5£289 GBP
Retailer 14£347 GBP
Retailer 13£405 GBP
Retailer 15£412 GBP
Retailer 8£473 GBP
Retailer 12£475 GBP
Retailer 11£497 GBP
Retailer 9£509 GBP
Retailer 10£767 GBP
Retailer 2£832 GBP
Retailer 6£928 GBP
Retailer 3£1,155 GBP
MOH London£1,157 GBP

44 data points across 16 retailers

17 retailers£233 GBP to £1,157 GBP

A
Cheapest Retailer
-
£233 GBP
A
Retailer 2
-
£260 GBP
View
Final sale: no returns
A
Retailer 3
-
£270 GBP
View
A
Retailer 4
-
£289 GBP
View
B+
Retailer 5
-
£379 GBP
View
B+
Retailer 6
-
£405 GBP
View
B+
Retailer 7
-
£412 GBP
View
B
Retailer 8
-
£473 GBP
View
B+
Retailer 9
-
£475 GBP
View
B+
Retailer 10
-
£497 GBP
View
B+
Retailer 11
-
£509 GBP
View
B
Retailer 12
-
£767 GBP
View
B
Retailer 13
-
£832 GBP
View
B
Retailer 14
-
£928 GBP
View
B
Retailer 15
-
£961 GBP
View
B
Retailer 16
-
£1,155 GBP
View
Most Expensive
B
MOH London
LG803648319 · Nov 3
£1,157 GBP
View
16 more retailers have this diamond
Prices start from £233 GBPSave up to £924 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
1.26ct Heart
£233 GBP