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Heart|Lab Grown|IGI

1.51ct D VS2 Heart Lab Grown Diamond

ID • D/VS2 • IGI LG647456789

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG647456789

Diamond specifications and retailer prices

From £187 GBP
As of November 4, 2026
Save £820 GBP (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,007 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG647456789 or 647456789. Listed at 16 retailers as of November 4, 2026, with prices from £187 to £1,007, a £820 spread on the same certified stone. Brilliant Earth lists it at £1,007. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG647456789
Dimensions6.97 × 8.23 × 4.71 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.97 mm8.23 mm1.51 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG647456789
Side View
Table 57.0%Crown 35°Girdle: MediumPavilion 39.1°Culet: NoneDepth 57.2%

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 4
Current: £1,007 GBP|Low: £187 GBP|High: £1,163 GBP|Avg: £545 GBP|-13.4%
Brilliant Earth
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
Retailer 17
November 5, 2026
Retailer 14£187 GBP
Retailer 3£218 GBP
Retailer 16£233 GBP
Retailer 17£233 GBP
Retailer 13£260 GBP
Retailer 11£352 GBP
Retailer 7£389 GBP
Retailer 9£390 GBP
Retailer 10£439 GBP
Retailer 5£484 GBP
Retailer 12£716 GBP
Retailer 15£748 GBP
Retailer 8£786 GBP
Retailer 4£857 GBP
Retailer 6£916 GBP
Retailer 2£930 GBP
Brilliant Earth£1,007 GBP

40 data points across 17 retailers

16 retailers£187 GBP to £1,007 GBP

A
Cheapest Retailer
-
£187 GBP
A
Retailer 2
-
£218 GBP
View
A
Retailer 3
-
£233 GBP
View
Retailer 4
-
£233 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£352 GBP
View
A
Retailer 6
-
£389 GBP
View
B+
Retailer 7
-
£390 GBP
View
B+
Retailer 8
-
£439 GBP
View
B+
Retailer 9
-
£484 GBP
View
B
Retailer 10
-
£716 GBP
View
B
Retailer 11
-
£748 GBP
View
Retailer 12
-
£786 GBP
View
Price last confirmed 18 days ago
B
Retailer 13
-
£857 GBP
View
B
Retailer 14
-
£916 GBP
View
B
Retailer 15
-
£930 GBP
View
Most Expensive
B
Brilliant Earth
11429311A · Nov 4
£1,007 GBP
$1,360 USD
View
15 more retailers have this diamond
Prices start from £187 GBPSave up to £820 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
1.51ct Heart
£187 GBP