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Heart|Lab Grown|IGI

1.25ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG742509033

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG742509033

Diamond specifications and retailer prices

From £145 GBP
As of November 4, 2026
Save £729 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £875 GBP at Reve Diamonds · As of November 4, 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG742509033 or 742509033. Listed at 19 retailers as of November 4, 2026, with prices from £145 to £875, a £729 spread on the same certified stone. Reve Diamonds lists it at £875. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742509033
Dimensions6.87 × 7.34 × 4.28 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.87 mm7.34 mm1.25 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742509033
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 58.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £325 GBP|Low: £145 GBP|High: £884 GBP|Avg: £402 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Reve Diamonds
November 5, 2026
Retailer 10£145 GBP
Retailer 12£161 GBP
Retailer 16£168 GBP
Retailer 7£184 GBP
Retailer 8£184 GBP
Retailer 9£239 GBP
Retailer 15£314 GBP
Retailer 4£316 GBP
Retailer 5£319 GBP
Retailer 1£325 GBP
Retailer 3£447 GBP
Retailer 6£563 GBP
Retailer 11£579 GBP
Retailer 14£581 GBP
Retailer 13£618 GBP
Retailer 2£858 GBP
Reve Diamonds£875 GBP

37 data points across 17 retailers

19 retailers£145 GBP to £875 GBP

A
Cheapest Retailer
-
£145 GBP
A
Retailer 2
-
£161 GBP
View
Final sale: no returns
A
Retailer 3
-
£168 GBP
View
A
Retailer 4
-
£184 GBP
View
Retailer 5
-
£184 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
-
£239 GBP
View
A
Retailer 7
-
£314 GBP
View
A
Retailer 8
-
£316 GBP
View
A
Retailer 9
-
£319 GBP
View
A
Retailer 10
-
£325 GBP
View
B+
Retailer 11
-
£364 GBP
View
B+
Retailer 12
-
£421 GBP
View
B+
Retailer 13
-
£447 GBP
View
B
Retailer 14
-
£563 GBP
View
B+
Retailer 15
-
£579 GBP
View
B
Retailer 16
-
£581 GBP
View
B
Retailer 17
-
£618 GBP
View
B
Retailer 18
-
£858 GBP
View
Most Expensive
B
Reve Diamonds
D9788BAC6 · Nov 4
£875 GBP
$1,181 USD
View
18 more retailers have this diamond
Prices start from £145 GBPSave up to £729 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
£145 GBP