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Heart|Lab Grown|IGI

1.51ct H VVS1 Heart Lab Grown Diamond

ID • H/VVS1 • IGI LG628488245

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG628488245

Diamond specifications and retailer prices

From £181 GBP
As of November 4, 2026
Save £799 GBP (82%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £981 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 H colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG628488245 or 628488245. Listed at 23 retailers as of November 4, 2026, with prices from £181 to £981, a £799 spread on the same certified stone. Brilliant Earth lists it at £981. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628488245
Dimensions6.83 × 8.07 × 4.70 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.83 mm8.07 mm1.51 ctH / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628488245
Side View
Table 59.0%Crown 36.9°Girdle: MED-THKPavilion 38.8°Culet: NoneDepth 58.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £981 GBP|Low: £144 GBP|High: £1,293 GBP|Avg: £551 GBP|-24.1%
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
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Retailer 17
November 5, 2026
Retailer 12£181 GBP
Retailer 14£210 GBP
Retailer 9£266 GBP
Retailer 13£318 GBP
Retailer 3£368 GBP
Retailer 7£379 GBP
Retailer 10£387 GBP
Retailer 15£410 GBP
Retailer 16£421 GBP
Retailer 17£493 GBP
Retailer 6£602 GBP
Retailer 11£724 GBP
Retailer 5£760 GBP
Retailer 8£760 GBP
Retailer 4£889 GBP
Retailer 2£897 GBP
Brilliant Earth£981 GBP

24 data points across 17 retailers

23 retailers£181 GBP to £981 GBP

A
Cheapest Retailer
-
£181 GBP
Retailer 2
-
£181 GBP
View
Price last confirmed 36 days ago
Retailer 3
-
£181 GBP
View
Price last confirmed 28 days ago
Retailer 4
-
£181 GBP
View
Price last confirmed 25 days ago
A
Retailer 5
-
£210 GBP
View
Final sale: no returns
Retailer 6
-
£210 GBP
View
Price last confirmed 37 days ago
Retailer 7
-
£221 GBP
View
Price last confirmed 39 days ago
Retailer 8
-
£224 GBP
View
Price last confirmed 26 days ago
Retailer 9
-
£224 GBP
View
Price last confirmed 33 days ago
A
Retailer 10
-
£266 GBP
View
B+
Retailer 11
-
£318 GBP
View
B+
Retailer 12
-
£387 GBP
View
B+
Retailer 13
-
£410 GBP
View
B+
Retailer 14
-
£421 GBP
View
B+
Retailer 15
-
£493 GBP
View
Retailer 16
-
£721 GBP
View
Price last confirmed 26 days ago
B
Retailer 17
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£721 GBP
View
Retailer 18
-
£721 GBP
View
Price last confirmed 36 days ago
B
Retailer 19
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£724 GBP
View
B
Retailer 20
-
£760 GBP
View
B
Retailer 21
-
£760 GBP
View
B
Retailer 22
-
£897 GBP
View
Most Expensive
B
Brilliant Earth
9949780A · Nov 4
£981 GBP
$1,320 USD
View
22 more retailers have this diamond
Prices start from £181 GBPSave up to £799 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
£181 GBP