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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 $403 AUD
As of November 4, 2026
Save $1,596 AUD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,514 AUD 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 4, 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 4
Current: $3,514 AUD|Low: $387 AUD|High: $3,514 AUD|Avg: $1,059 AUD
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
November 5, 2026
Retailer 3$403 AUD
Retailer 7$451 AUD
Retailer 4$500 AUD
Retailer 6$500 AUD
Retailer 2$526 AUD
Retailer 14$674 AUD
Retailer 13$729 AUD
Retailer 15$820 AUD
Retailer 12$861 AUD
Retailer 8$874 AUD
Retailer 11$1,227 AUD
Retailer 10$1,537 AUD
Retailer 5$1,608 AUD
Retailer 9$1,998 AUD
Brilliant Earth$3,514 AUD

43 data points across 15 retailers

19 retailers$403 AUD to $1,998 AUD

A
Cheapest Retailer
-
$403 AUD
A
Retailer 2
-
$451 AUD
View
Final sale: no returns
A
Retailer 3
-
$469 AUD
View
A
Retailer 4
-
$500 AUD
View
Retailer 5
-
$500 AUD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$526 AUD
View
A
Retailer 7
-
$674 AUD
View
A
Retailer 8
-
$729 AUD
View
A
Retailer 9
-
$861 AUD
View
A
Retailer 10
-
$863 AUD
View
A
Retailer 11
-
$874 AUD
View
A
Retailer 12
-
$1,227 AUD
View
A
Retailer 13
-
$1,244 AUD
View
A
Retailer 14
-
$1,400 AUD
View
A
Retailer 15
-
$1,537 AUD
View
B+
Retailer 16
-
$1,608 AUD
View
B+
Retailer 17
-
$1,680 AUD
View
B+
Retailer 18
-
$1,998 AUD
View
Most Expensive
Brilliant Earth
21385914A · Oct 8
$3,514 AUD
$2,460 USD
View
Price last confirmed 28 days ago
18 more retailers have this diamond
Prices start from $403 AUDSave up to $1,596 AUD

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
$403 AUD