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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG722564061

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG722564061

Diamond specifications and retailer prices

From $329 USD
As of October 28, 2026
Save $3,141 USD (91%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,470 USD at Brilliant Earth · As of October 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG722564061 or 722564061. Listed at 8 retailers as of October 28, 2026, with prices from $329 to $3,470, a $3,141 spread on the same certified stone. Brilliant Earth lists it at $3,470. 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 angle33.4°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG722564061
Dimensions8.16 × 7.07 × 4.75 mm
L/W Ratio1.15
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
Top View
8.16 mm7.07 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG722564061
Side View
Table 56.0%Crown 33.4°Girdle: MED-THKPavilion 42°Culet: NoneDepth 58.2%

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 28
Current: $3,470 USD|Low: $329 USD|High: $3,570 USD|Avg: $1,350 USD|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 5$329 USD
Retailer 4$555 USD
Retailer 2$645 USD
Retailer 8$1,048 USD
Retailer 6$1,174 USD
Retailer 7$1,248 USD
Retailer 3$1,472 USD
Brilliant Earth$3,470 USD

42 data points across 8 retailers

8 retailers$329 USD to $3,470 USD

A
Cheapest Retailer
-
$329 USD
Final sale: no returns
A
Retailer 2
-
$555 USD
View
A
Retailer 3
-
$645 USD
£508 GBP
View
A
Retailer 4
-
$1,048 USD
View
B+
Retailer 5
-
$1,174 USD
SGD 1,587 SGD
View
B+
Retailer 6
-
$1,248 USD
View
B+
Retailer 7
-
$1,472 USD
£1,159 GBP
View
Most Expensive
B
Brilliant Earth
15964492A · Oct 28
$3,470 USD
View
7 more retailers have this diamond
Prices start from $329 USDSave up to $3,141 USD

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
$329 USD