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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG835608021

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG835608021

Diamond specifications and retailer prices

From €279 EUR
$312 USD
As of October 30, 2026
Save €2,388 EUR (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €2,667 EUR at Brilliant Earth · As of October 30, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG835608021 or 835608021. Listed at 21 retailers as of October 30, 2026, with prices from €279 to €2,667, a €2,388 spread on the same certified stone. Brilliant Earth lists it at €2,667. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835608021
Dimensions6.66 × 7.89 × 4.72 mm
L/W Ratio1.18
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
6.66 mm7.89 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835608021
Side View
Table 57.0%Crown 38.3°Girdle: STK-THKPavilion 37.8°Culet: NoneDepth 59.8%

Caratlytics Score

How it works →
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: €2,667 EUR|Low: €270 EUR|High: €2,667 EUR|Avg: €915 EUR|+0.3%
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
Retailer 18
Retailer 19
October 31, 2026
Retailer 18€279 EUR
Retailer 11€344 EUR
Retailer 7€346 EUR
Retailer 5€357 EUR
Retailer 3€383 EUR
Retailer 13€519 EUR
Retailer 19€562 EUR
Retailer 9€591 EUR
Retailer 12€616 EUR
Retailer 17€644 EUR
Retailer 8€801 EUR
Retailer 15€869 EUR
Retailer 16€914 EUR
Retailer 6€1,153 EUR
Retailer 2€1,329 EUR
Retailer 10€1,380 EUR
Retailer 4€1,387 EUR
Retailer 14€2,093 EUR
Brilliant Earth€2,667 EUR

26 data points across 19 retailers

21 retailers€279 EUR to €2,667 EUR

A
Cheapest Retailer
-
€279 EUR
$312 USD
Retailer 2
-
€337 EUR
$377 USD
View
Price last confirmed 33 days ago
A
Retailer 3
-
€344 EUR
$384 USD
View
A
Retailer 4
-
€346 EUR
$386 USD
View
A
Retailer 5
-
€357 EUR
£314 GBP
View
A
Retailer 6
-
€383 EUR
$428 USD
View
Final sale: no returns
A
Retailer 7
-
€519 EUR
$580 USD
View
A
Retailer 8
-
€562 EUR
$628 USD
View
A
Retailer 9
-
€591 EUR
ZAR 10,664 ZAR
View
A
Retailer 10
-
€616 EUR
£542 GBP
View
A
Retailer 11
-
€644 EUR
$720 USD
View
A
Retailer 12
-
€801 EUR
A$1,377 AUD
View
A
Retailer 13
-
€869 EUR
$971 USD
View
A
Retailer 14
-
€914 EUR
$1,021 USD
View
Retailer 15
-
€1,132 EUR
$1,265 USD
View
Price last confirmed 31 days ago
B+
Retailer 16
-
€1,153 EUR
$1,288 USD
View
B+
Retailer 17
-
€1,329 EUR
$1,485 USD
View
B+
Retailer 18
-
€1,380 EUR
£1,214 GBP
View
B+
Retailer 19
-
€1,387 EUR
$1,550 USD
View
B
Retailer 20
-
€2,093 EUR
A$3,597 AUD
View
Most Expensive
B
Brilliant Earth
21696528A · Oct 30
€2,667 EUR
$2,980 USD
View
20 more retailers have this diamond
Prices start from €279 EURSave up to €2,388 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
€279 EUR