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Heart|Lab Grown|IGI

1.34ct F IF Heart Lab Grown Diamond

EX • F/IF • IGI LG683536431

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG683536431

Diamond specifications and retailer prices

From $509 NZD
As of November 6, 2026
Save $2,015 NZD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,438 NZD at Brilliant Earth · As of October 8, 2026
View at Brilliant Earth

About this 1.34ct lab-grown heart diamond

This 1.34ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG683536431 or 683536431. Listed at 19 retailers as of November 5, 2026, with a 396% 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

1.34
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683536431
Dimensions6.87 × 7.54 × 4.50 mm
L/W Ratio1.10
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
6.87 mm7.54 mm1.34 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683536431
Side View
Table 58.0%Crown 36.6°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 59.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $4,438 NZD|Low: $489 NZD|High: $4,438 NZD|Avg: $1,403 NZD
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
November 7, 2026
Retailer 3$509 NZD
Retailer 4$631 NZD
Retailer 6$631 NZD
Retailer 8$664 NZD
Retailer 13$851 NZD
Retailer 12$920 NZD
Retailer 14$1,035 NZD
Retailer 7$1,070 NZD
Retailer 2$1,106 NZD
Retailer 11$1,550 NZD
Retailer 10$1,941 NZD
Retailer 5$2,031 NZD
Retailer 9$2,524 NZD
Brilliant Earth$4,438 NZD

44 data points across 14 retailers

19 retailers$509 NZD to $2,524 NZD

A
Cheapest Retailer
-
$509 NZD
A
Retailer 2
-
$570 NZD
View
Final sale: no returns
A
Retailer 3
-
$592 NZD
View
A
Retailer 4
-
$631 NZD
View
Retailer 5
-
$631 NZD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$664 NZD
View
A
Retailer 7
-
$851 NZD
View
A
Retailer 8
-
$920 NZD
View
A
Retailer 9
-
$1,070 NZD
View
A
Retailer 10
-
$1,090 NZD
View
A
Retailer 11
-
$1,106 NZD
View
A
Retailer 12
-
$1,550 NZD
View
A
Retailer 13
-
$1,571 NZD
View
A
Retailer 14
-
$1,768 NZD
View
A
Retailer 15
-
$1,941 NZD
View
B+
Retailer 16
-
$2,031 NZD
View
B+
Retailer 17
-
$2,121 NZD
View
B+
Retailer 18
-
$2,524 NZD
View
Most Expensive
Brilliant Earth
21385914A · Oct 8
$4,438 NZD
$2,460 USD
View
Price last confirmed 29 days ago
18 more retailers have this diamond
Prices start from $509 NZDSave up to $2,015 NZD

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
1.34ct Heart
$509 NZD