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Heart|Lab Grown|IGI

1.25ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG742509039

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG742509039

Diamond specifications and retailer prices

From £143 GBP
$191 USD
As of October 30, 2026
Save £727 GBP (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £869 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.25ct lab-grown heart diamond

This 1.25ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG742509039 or 742509039. Listed at 18 retailers as of October 30, 2026, with prices from £143 to £869, a £727 spread on the same certified stone. Reve Diamonds lists it at £869. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742509039
Dimensions6.43 × 7.55 × 4.57 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.43 mm7.55 mm1.25 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742509039
Side View
Table 59.0%Crown 35.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.5%

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: Oct 30
Current: £321 GBP|Low: £143 GBP|High: £874 GBP|Avg: £416 GBP|+3.2%
Retailer 1
Retailer 2
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Retailer 5
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Retailer 11
Retailer 12
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Retailer 17
Reve Diamonds
October 30, 2026
Retailer 16£143 GBP
Retailer 7£159 GBP
Retailer 13£165 GBP
Retailer 2£177 GBP
Retailer 3£177 GBP
Retailer 15£222 GBP
Retailer 11£303 GBP
Retailer 8£310 GBP
Retailer 1£321 GBP
Retailer 5£343 GBP
Retailer 4£417 GBP
Retailer 12£431 GBP
Retailer 17£568 GBP
Retailer 14£570 GBP
Retailer 6£608 GBP
Retailer 9£687 GBP
Retailer 10£830 GBP
Reve Diamonds£869 GBP

38 data points across 18 retailers

18 retailers£143 GBP to £869 GBP

A
Cheapest Retailer
-
£143 GBP
$191 USD
A
Retailer 2
-
£159 GBP
$213 USD
View
Final sale: no returns
A
Retailer 3
-
£165 GBP
$221 USD
View
A
Retailer 4
-
£177 GBP
$237 USD
View
A
Retailer 5
-
£177 GBP
$237 USD
View
Retailer 6
-
£222 GBP
View
Price last confirmed 13 days ago
A
Retailer 7
-
£303 GBP
ZAR 6,568 ZAR
View
A
Retailer 8
-
£310 GBP
$415 USD
View
A
Retailer 9
-
£321 GBP
View
B+
Retailer 10
-
£343 GBP
$459 USD
View
B+
Retailer 11
-
£417 GBP
$559 USD
View
B+
Retailer 12
-
£431 GBP
A$889 AUD
View
B+
Retailer 13
-
£568 GBP
$761 USD
View
B
Retailer 14
-
£570 GBP
$764 USD
View
B
Retailer 15
-
£608 GBP
$815 USD
View
B
Retailer 16
-
£687 GBP
$920 USD
View
B
Retailer 17
-
£830 GBP
View
Most Expensive
B
Reve Diamonds
777FFAA3D · Oct 30
£869 GBP
$1,165 USD
View
17 more retailers have this diamond
Prices start from £143 GBPSave up to £727 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
1.25ct Heart
£143 GBP