Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG811645844

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG811645844

Diamond specifications and retailer prices

From €457 EUR
$511 USD
As of October 30, 2026
Save €1,438 EUR (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,896 EUR at Brilliance · As of October 30, 2026
View at Brilliance

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811645844 or 811645844. Listed at 10 retailers as of October 30, 2026, with prices from €457 to €1,896, a €1,438 spread on the same certified stone. Brilliance lists it at €1,896. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811645844
Dimensions7.70 × 7.20 × 4.68 mm
L/W Ratio1.07
Girdle conditionFaceted
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
7.70 mm7.20 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG811645844
Side View
Table 58.0%Crown 37.5°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,896 EUR|Low: €320 EUR|High: €2,075 EUR|Avg: €1,129 EUR|-8.6%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 10€457 EUR
Retailer 5€680 EUR
Retailer 7€680 EUR
Retailer 2€839 EUR
Retailer 4€871 EUR
Retailer 8€959 EUR
Retailer 6€1,362 EUR
Retailer 9€1,657 EUR
Retailer 3€1,871 EUR
Brilliance€1,896 EUR

40 data points across 10 retailers

10 retailers€457 EUR to €1,896 EUR

A
Cheapest Retailer
-
€457 EUR
$511 USD
Final sale: no returns
A
Retailer 2
-
€680 EUR
$760 USD
View
A
Retailer 3
-
€680 EUR
$760 USD
View
A
Retailer 4
-
€839 EUR
£738 GBP
View
A
Retailer 5
-
€871 EUR
ZAR 15,715 ZAR
View
A
Retailer 6
-
€959 EUR
$1,071 USD
View
B
Retailer 7
-
€1,362 EUR
$1,522 USD
View
B+
Retailer 8
-
€1,657 EUR
$1,851 USD
View
B
Retailer 9
-
€1,871 EUR
£1,646 GBP
View
Most Expensive
B
Brilliance
D44758911 · Oct 30
€1,896 EUR
$2,118 USD
View
9 more retailers have this diamond
Prices start from €457 EURSave up to €1,438 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
€457 EUR