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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG799613631

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG799613631

Diamond specifications and retailer prices

From $512 USD
As of October 28, 2026
Save $2,368 USD (82%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,880 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 LG799613631 or 799613631. Listed at 7 retailers as of October 28, 2026, with prices from $512 to $2,880, a $2,368 spread on the same certified stone. Brilliant Earth lists it at $2,880. 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 angle39.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799613631
Dimensions7.90 × 7.08 × 4.68 mm
L/W Ratio1.12
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
7.90 mm7.08 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799613631
Side View
Table 62.0%Crown 39.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 59.2%

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: $2,880 USD|Low: $490 USD|High: $2,970 USD|Avg: $1,178 USD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 6$512 USD
Retailer 5$628 USD
Retailer 9$647 USD
Retailer 10$683 USD
Retailer 11$731 USD
Retailer 7$966 USD
Retailer 8$1,192 USD
Retailer 4$1,320 USD
Retailer 2$1,483 USD
Retailer 3$1,665 USD
Brilliant Earth$2,880 USD

27 data points across 11 retailers

7 retailers$512 USD to $2,880 USD

A
Cheapest Retailer
-
$512 USD
A
Retailer 2
-
$628 USD
View
A
Retailer 3
-
$966 USD
View
B+
Retailer 4
-
$1,192 USD
View
B+
Retailer 5
-
$1,320 USD
View
B+
Retailer 6
-
$1,483 USD
£1,168 GBP
View
Most Expensive
B
Brilliant Earth
19934876A · Oct 28
$2,880 USD
View
6 more retailers have this diamond
Prices start from $512 USDSave up to $2,368 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
$512 USD