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Heart|Lab Grown|IGI

1.51ct D VS2 Heart Lab Grown Diamond

EX • D/VS2 • IGI LG645423250

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG645423250

Diamond specifications and retailer prices

From €281 EUR
$314 USD
As of October 25, 2026
Save €852 EUR (75%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,316 EUR at Brilliant Earth · As of October 14, 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 LG645423250 or 645423250. Listed at 14 retailers as of October 25, 2026, with a 303% 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
D
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645423250
Dimensions7.10 × 7.89 × 4.64 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.10 mm7.89 mm1.51 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645423250
Side View
Table 58.0%Crown 36.6°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 58.8%

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 25
Current: €1,316 EUR|Low: €254 EUR|High: €1,405 EUR|Avg: €697 EUR|-6.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 8€281 EUR
Retailer 9€315 EUR
Retailer 5€380 EUR
Retailer 12€470 EUR
Retailer 4€471 EUR
Retailer 2€532 EUR
Retailer 10€584 EUR
Retailer 7€865 EUR
Retailer 3€950 EUR
Retailer 11€1,106 EUR
Retailer 6€1,133 EUR
Brilliant Earth€1,316 EUR

37 data points across 12 retailers

14 retailers€281 EUR to €1,133 EUR

Retailer 1
-
€251 EUR
$280 USD
Price last confirmed 34 days ago
Retailer 2
-
€281 EUR
$314 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
€281 EUR
$314 USD
View
Retailer 4
-
€315 EUR
£277 GBP
View
Price last confirmed 15 days ago
A
Retailer 5
-
€380 EUR
$425 USD
View
A
Retailer 6
-
€470 EUR
$525 USD
View
B+
Retailer 7
-
€471 EUR
$526 USD
View
B+
Retailer 8
-
€532 EUR
£468 GBP
View
B+
Retailer 9
-
€584 EUR
$653 USD
View
B
Retailer 10
-
€865 EUR
$966 USD
View
Retailer 11
-
€950 EUR
$1,062 USD
View
Price last confirmed 14 days ago
B
Retailer 12
-
€1,106 EUR
$1,236 USD
View
B
Retailer 13
-
€1,133 EUR
£997 GBP
View
Most Expensive
Brilliant Earth
11351475A · Oct 14
€1,316 EUR
$1,470 USD
View
Price last confirmed 17 days ago
13 more retailers have this diamond
Prices start from €281 EURSave up to €852 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
€281 EUR