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Heart|Lab Grown|IGI

1.34ct D IF Heart Lab Grown Diamond

VG • D/IF • IGI LG839698473

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG839698473

Diamond specifications and retailer prices

From $457 AUD
As of November 4, 2026
Save $3,071 AUD (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,528 AUD at Brilliant Earth · As of November 2, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG839698473 or 839698473. Listed at 12 retailers as of November 2, 2026, with prices from $457 to $3,528, a $3,071 spread on the same certified stone. Brilliant Earth lists it at $3,528. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.34
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839698473
Dimensions7.04 × 7.78 × 4.36 mm
L/W Ratio1.11
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
7.04 mm7.78 mm1.34 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839698473
Side View
Table 61.0%Crown 36.6°Girdle: MED-STKPavilion 37.9°CuletDepth 56.0%

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: Nov 4
Current: $3,528 AUD|Low: $457 AUD|High: $4,043 AUD|Avg: $1,123 AUD|-12.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 3$457 AUD
Retailer 11$510 AUD
Retailer 10$566 AUD
Retailer 4$570 AUD
Retailer 12$786 AUD
Retailer 8$917 AUD
Retailer 6$920 AUD
Retailer 7$976 AUD
Retailer 2$1,000 AUD
Retailer 5$1,391 AUD
Retailer 9$1,660 AUD
Brilliant Earth$3,528 AUD

32 data points across 12 retailers

12 retailers$457 AUD to $3,528 AUD

A
Cheapest Retailer
-
$457 AUD
A
Retailer 2
-
$510 AUD
View
Final sale: no returns
A
Retailer 3
-
$566 AUD
View
Retailer 4
-
$570 AUD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$786 AUD
View
A
Retailer 6
-
$917 AUD
View
B+
Retailer 7
-
$920 AUD
View
A
Retailer 8
-
$976 AUD
View
A
Retailer 9
-
$1,000 AUD
View
B+
Retailer 10
-
$1,391 AUD
View
B+
Retailer 11
-
$1,660 AUD
View
Most Expensive
B
Brilliant Earth
21696640A · Nov 2
$3,528 AUD
$2,470 USD
View
11 more retailers have this diamond
Prices start from $457 AUDSave up to $3,071 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
$457 AUD