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Heart|Lab Grown|IGI

1.51ct E SI1 Heart Lab Grown Diamond

VG • E/SI1 • IGI LG459130247

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG459130247

Diamond specifications and retailer prices

From €187 EUR
$209 USD
As of October 30, 2026
Save €1,612 EUR (90%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €1,799 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG459130247 or 459130247. Listed at 8 retailers as of October 30, 2026, with prices from €187 to €1,799, a €1,612 spread on the same certified stone. Do Amore Diamonds lists it at €1,799. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.8°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459130247
Dimensions7.92 × 6.78 × 4.54 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.92 mm6.78 mm1.51 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG459130247
Side View
Table 60.5%Crown 35.8°Girdle: THK-VTKPavilion 37.9°Culet: NoneDepth 57.3%

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: €1,799 EUR|Low: €142 EUR|High: €1,835 EUR|Avg: €666 EUR|-2.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 26, 2026
Retailer 4€187 EUR
Retailer 6€209 EUR
Retailer 5€399 EUR
Retailer 7€431 EUR
Retailer 8€465 EUR
Retailer 9€520 EUR
Retailer 10€666 EUR
Retailer 3€749 EUR
Retailer 2€1,029 EUR
Do Amore Diamonds€1,799 EUR

12 data points across 10 retailers

8 retailers€187 EUR to €1,799 EUR

A
Cheapest Retailer
-
€187 EUR
$209 USD
A
Retailer 2
-
€209 EUR
$234 USD
View
Final sale: no returns
A
Retailer 3
-
€218 EUR
$243 USD
View
B
Retailer 4
-
€399 EUR
$446 USD
View
B
Retailer 5
-
€749 EUR
$837 USD
View
B
Retailer 6
-
€823 EUR
$920 USD
View
B
Retailer 7
-
€1,029 EUR
£905 GBP
View
Most Expensive
C
Do Amore Diamonds
27-3A9B3D2D2 · Oct 31
€1,799 EUR
$2,010 USD
View
7 more retailers have this diamond
Prices start from €187 EURSave up to €1,612 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
€187 EUR