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Heart|Lab Grown|IGI

1.51ct H VS1 Heart Lab Grown Diamond

EX • H/VS1 • IGI LG782601931

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG782601931

Diamond specifications and retailer prices

From €196 EUR
As of November 4, 2026
Save €773 EUR (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,532 EUR at Brilliant Earth · As of September 28, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG782601931 or 782601931. Listed at 19 retailers as of November 4, 2026, with a 395% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782601931
Dimensions7.23 × 8.00 × 4.62 mm
L/W Ratio1.11
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 Faint Blue
Top View
7.23 mm8.00 mm1.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782601931
Side View
Table 60.0%Crown 36.2°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 57.8%

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: €909 EUR|Low: €196 EUR|High: €1,488 EUR|Avg: €528 EUR|-38.9%
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
Retailer 18
November 5, 2026
Retailer 14€196 EUR
Retailer 7€218 EUR
Retailer 15€227 EUR
Retailer 17€242 EUR
Retailer 10€257 EUR
Retailer 2€322 EUR
Retailer 4€402 EUR
Retailer 9€415 EUR
Retailer 16€418 EUR
Retailer 5€442 EUR
Retailer 3€469 EUR
Retailer 13€566 EUR
Retailer 12€637 EUR
Retailer 18€780 EUR
Retailer 8€787 EUR
Retailer 6€826 EUR
Brilliant Earth€909 EUR
Retailer 11€969 EUR

45 data points across 18 retailers

19 retailers€196 EUR to €969 EUR

A
Cheapest Retailer
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€196 EUR
A
Retailer 2
-
€218 EUR
View
Final sale: no returns
A
Retailer 3
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€227 EUR
View
A
Retailer 4
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€242 EUR
View
Retailer 5
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€257 EUR
View
Price last confirmed 11 days ago
A
Retailer 6
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€322 EUR
View
A
Retailer 7
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€402 EUR
View
A
Retailer 8
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€415 EUR
View
A
Retailer 9
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€418 EUR
View
A
Retailer 10
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€442 EUR
View
A
Retailer 11
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€469 EUR
View
A
Retailer 12
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€566 EUR
View
B+
Retailer 13
-
€637 EUR
View
B+
Retailer 14
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€780 EUR
View
B+
Retailer 15
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€787 EUR
View
B+
Retailer 16
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€826 EUR
View
B+
Retailer 17
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€909 EUR
View
B
Retailer 18
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€969 EUR
View
Most Expensive
Brilliant Earth
20465160A · Sep 28
€1,532 EUR
$1,720 USD
View
Price last confirmed 38 days ago
18 more retailers have this diamond
Prices start from €196 EURSave up to €773 EUR

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
€196 EUR