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Heart|Lab Grown|IGI

1.50ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG623481707

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG623481707

Diamond specifications and retailer prices

From $402 USD
As of October 30, 2026
Save $1,462 USD (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,910 USD at Brilliant Earth · As of October 8, 2026
View at Brilliant Earth

About this 1.5ct lab-grown heart diamond

This 1.5ct 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 LG623481707 or 623481707. Listed at 18 retailers as of October 27, 2026, with a 364% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623481707
Dimensions7.82 × 7.82 × 6.82 mm
L/W Ratio1.00
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
7.82 mm7.82 mm1.50 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623481707
Side View
Table 62.0%Crown 35°Girdle: MED-STKPavilion 41.9°Culet: NoneDepth 60.4%

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: $2,910 USD|Low: $320 USD|High: $3,070 USD|Avg: $1,240 USD|-5.2%
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
October 30, 2026
Retailer 15$402 USD
Retailer 5$449 USD
Retailer 3$498 USD
Retailer 11$645 USD
Retailer 14$670 USD
Retailer 2$818 USD
Retailer 10$856 USD
Retailer 6$1,040 USD
Retailer 13$1,159 USD
Retailer 9$1,160 USD
Retailer 4$1,601 USD
Retailer 8$1,637 USD
Retailer 7$1,837 USD
Retailer 16$1,864 USD
Retailer 12$1,956 USD
Brilliant Earth$2,910 USD

45 data points across 16 retailers

18 retailers$402 USD to $1,864 USD

A
Cheapest Retailer
-
$402 USD
A
Retailer 2
-
$449 USD
View
Final sale: no returns
A
Retailer 3
-
$450 USD
View
A
Retailer 4
-
$498 USD
View
A
Retailer 5
-
$498 USD
View
A
Retailer 6
-
$645 USD
View
A
Retailer 7
-
$670 USD
View
A
Retailer 8
-
$818 USD
£644 GBP
View
A
Retailer 9
-
$856 USD
ZAR 13,825 ZAR
View
A
Retailer 10
-
$1,040 USD
View
B+
Retailer 11
-
$1,159 USD
View
A
Retailer 12
-
$1,160 USD
A$1,784 AUD
View
B+
Retailer 13
-
$1,601 USD
View
B+
Retailer 14
-
$1,637 USD
View
B+
Retailer 15
-
$1,837 USD
View
B+
Retailer 16
-
$1,864 USD
View
Retailer 17
-
$1,956 USD
£1,540 GBP
View
Price last confirmed 11 days ago
Most Expensive
Brilliant Earth
21385356A · Oct 8
$2,910 USD
View
Price last confirmed 21 days ago
17 more retailers have this diamond
Prices start from $402 USDSave up to $1,462 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
1.50ct Heart
$402 USD