Heart|Lab Grown|IGI

1.42ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG816614783

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG816614783

Diamond specifications and retailer prices

From $393 USD
As of October 30, 2026
Save $2,567 USD (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,370 USD at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 1.42ct lab-grown heart diamond

This 1.42ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816614783 or 816614783. Listed at 18 retailers as of October 30, 2026, with a 653% 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

1.42
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816614783
Dimensions7.78 × 6.97 × 4.46 mm
L/W Ratio1.12
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
7.78 mm6.97 mm1.42 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816614783
Side View
Table 58.0%Crown 34.2°Girdle: STK-THKPavilion 38.6°Culet: NoneDepth 57.3%

Caratlytics Score

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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: $2,960 USD|Low: $393 USD|High: $4,230 USD|Avg: $1,235 USD|-30.0%
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
November 1, 2026
Retailer 6$393 USD
Retailer 17$440 USD
Retailer 2$447 USD
Retailer 13$487 USD
Retailer 16$487 USD
Retailer 14$635 USD
Retailer 7$773 USD
Retailer 11$792 USD
Retailer 12$837 USD
Retailer 3$1,070 USD
Retailer 8$1,168 USD
Retailer 15$1,566 USD
Retailer 5$1,603 USD
Retailer 9$1,675 USD
Retailer 10$1,904 USD
Retailer 4$1,939 USD
Brilliant Earth$2,960 USD

32 data points across 17 retailers

18 retailers$393 USD to $2,960 USD

A
Cheapest Retailer
-
$393 USD
A
Retailer 2
-
$440 USD
View
A
Retailer 3
-
$447 USD
View
Final sale: no returns
A
Retailer 4
-
$487 USD
View
Retailer 5
-
$487 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$635 USD
View
A
Retailer 7
-
$773 USD
View
A
Retailer 8
-
$792 USD
£624 GBP
View
A
Retailer 9
-
$837 USD
ZAR 13,522 ZAR
View
B+
Retailer 10
-
$1,070 USD
View
B+
Retailer 11
-
$1,168 USD
View
B+
Retailer 12
-
$1,566 USD
View
B+
Retailer 13
-
$1,603 USD
View
B+
Retailer 14
-
$1,675 USD
SGD 2,263 SGD
View
B+
Retailer 15
-
$1,904 USD
£1,499 GBP
View
B+
Retailer 16
-
$1,939 USD
View
B
Retailer 17
-
$2,960 USD
View
Most Expensive
Brilliant Earth
21094848A · Sep 28
$4,370 USD
View
Price last confirmed 34 days ago
17 more retailers have this diamond
Prices start from $393 USDSave up to $2,567 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
1.42ct Heart
$393 USD