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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 €209 EUR
$233 USD
As of October 30, 2026
Save €768 EUR (79%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,540 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 October 30, 2026, with a 368% 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
Color
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: Oct 30
Current: €913 EUR|Low: €201 EUR|High: €1,540 EUR|Avg: €560 EUR|-40.7%
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 1, 2026
Retailer 8€209 EUR
Retailer 3€219 EUR
Retailer 12€243 EUR
Retailer 9€259 EUR
Retailer 11€325 EUR
Retailer 15€404 EUR
Retailer 5€417 EUR
Retailer 2€421 EUR
Retailer 16€444 EUR
Retailer 14€471 EUR
Retailer 6€603 EUR
Retailer 7€683 EUR
Retailer 13€783 EUR
Retailer 4€791 EUR
Retailer 17€830 EUR
Brilliant Earth€913 EUR
Retailer 10€976 EUR

43 data points across 17 retailers

19 retailers€209 EUR to €976 EUR

A
Cheapest Retailer
-
€209 EUR
$233 USD
A
Retailer 2
-
€219 EUR
$245 USD
View
Final sale: no returns
A
Retailer 3
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€243 EUR
$271 USD
View
A
Retailer 4
-
€243 EUR
$272 USD
View
Retailer 5
-
€259 EUR
$289 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
€325 EUR
£286 GBP
View
A
Retailer 7
-
€404 EUR
View
A
Retailer 8
-
€417 EUR
$466 USD
View
A
Retailer 9
-
€421 EUR
ZAR 7,592 ZAR
View
A
Retailer 10
-
€444 EUR
$496 USD
View
A
Retailer 11
-
€471 EUR
$526 USD
View
B+
Retailer 12
-
€603 EUR
A$1,037 AUD
View
B+
Retailer 13
-
€683 EUR
$763 USD
View
B
Retailer 14
-
€783 EUR
$875 USD
View
B+
Retailer 15
-
€791 EUR
SGD 1,194 SGD
View
B+
Retailer 16
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€830 EUR
$928 USD
View
B+
Retailer 17
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€913 EUR
$1,020 USD
View
B
Retailer 18
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€976 EUR
£859 GBP
View
Most Expensive
Brilliant Earth
20465160A · Sep 28
€1,540 EUR
$1,720 USD
View
Price last confirmed 34 days ago
18 more retailers have this diamond
Prices start from €209 EURSave up to €768 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
€209 EUR