Heart|Lab Grown|IGI

3.03ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG821682390

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG821682390

Diamond specifications and retailer prices

From $1,739 AUD
$1,219 USD
As of November 2, 2026
17 retailers carry this diamond
Most expensive: $17,551 AUD at Brilliant Earth · As of October 17, 2026
View at Brilliant Earth

About this 3.03ct lab-grown heart diamond

This 3.03ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821682390 or 821682390. Listed at 17 retailers as of November 2, 2026. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.03
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821682390
Dimensions9.23 × 10.08 × 5.63 mm
L/W Ratio1.09
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
9.23 mm10.08 mm3.03 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821682390
Side View
Table 60.0%Crown 36.2°Girdle: MED-THKPavilion 39.3°Culet: NoneDepth 55.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $17,551 AUD|Low: $2,236 AUD|High: $18,107 AUD|Avg: $5,818 AUD|-3.1%
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
October 17, 2026
Retailer 8$2,236 AUD
Retailer 3$2,317 AUD
Retailer 11$2,561 AUD
Retailer 2$3,350 AUD
Retailer 14$3,659 AUD
Retailer 7$3,753 AUD
Retailer 12$3,867 AUD
Retailer 13$4,245 AUD
Retailer 10$5,330 AUD
Retailer 6$5,935 AUD
Retailer 4$6,246 AUD
Retailer 9$6,689 AUD
Retailer 5$8,150 AUD
Brilliant Earth$17,551 AUD

26 data points across 14 retailers

17 retailers

A
Cheapest Retailer
-
$1,739 AUD
$1,219 USD
Retailer 2
-
$1,918 AUD
$1,344 USD
View
Price last confirmed 31 days ago
Retailer 3
-
$1,998 AUD
$1,400 USD
View
Price last confirmed 22 days ago
Retailer 4
-
$2,263 AUD
$1,586 USD
View
Price last confirmed 34 days ago
Retailer 5
-
$2,317 AUD
$1,624 USD
View
Price last confirmed 18 days ago
Retailer 6
-
$2,317 AUD
$1,624 USD
View
Price last confirmed 21 days ago
Retailer 7
-
$2,317 AUD
$1,624 USD
View
Price last confirmed 23 days ago
Retailer 8
-
$2,317 AUD
$1,624 USD
View
Price last confirmed 30 days ago
Retailer 9
-
$2,588 AUD
$1,814 USD
View
Price last confirmed 33 days ago
Retailer 10
-
$3,867 AUD
$2,710 USD
View
Price last confirmed 17 days ago
Retailer 11
-
$4,343 AUD
$3,044 USD
View
Price last confirmed 23 days ago
Retailer 12
-
$4,921 AUD
$3,449 USD
View
Price last confirmed 33 days ago
Retailer 13
-
$5,330 AUD
ZAR 60,349 ZAR
View
Price last confirmed 19 days ago
Retailer 14
-
$5,935 AUD
View
Price last confirmed 35 days ago
Retailer 15
-
$6,689 AUD
£3,691 GBP
View
Price last confirmed 18 days ago
Retailer 16
-
$8,608 AUD
£4,750 GBP
View
Price last confirmed 17 days ago
Most Expensive
Brilliant Earth
20998958A · Oct 17
$17,551 AUD
$12,300 USD
View
Price last confirmed 16 days ago
16 more retailers have this diamond
Prices start from $1,739 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
3.03ct Heart
$1,739 AUD