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Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG836619131

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836619131

Diamond specifications and retailer prices

From $1,414 AUD
$991 USD
As of November 1, 2026
Save $5,506 AUD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,920 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836619131 or 836619131. Listed at 14 retailers as of October 31, 2026, with prices from $1,414 to $6,920, a $5,506 spread on the same certified stone. Brilliant Earth lists it at $6,920. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836619131
Dimensions8.06 × 7.10 × 4.53 mm
L/W Ratio1.14
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
8.06 mm7.10 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836619131
Side View
Table 60.0%Crown 34.7°Girdle: MED-STKPavilion 38°Culet: NoneDepth 56.2%

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 1
Current: $6,920 AUD|Low: $1,414 AUD|High: $6,920 AUD|Avg: $3,468 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
November 2, 2026
Retailer 12$1,414 AUD
Retailer 2$1,658 AUD
Retailer 14$1,727 AUD
Retailer 9$1,748 AUD
Retailer 6$2,205 AUD
Retailer 7$2,257 AUD
Retailer 11$2,696 AUD
Retailer 10$3,049 AUD
Retailer 4$3,757 AUD
Retailer 3$4,348 AUD
Retailer 13$4,827 AUD
Retailer 5$5,092 AUD
Retailer 8$5,498 AUD
Brilliant Earth$6,920 AUD

8 data points across 14 retailers

14 retailers$1,414 AUD to $6,920 AUD

A
Cheapest Retailer
-
$1,414 AUD
$991 USD
Final sale: no returns
A
Retailer 2
-
$1,658 AUD
£915 GBP
View
B+
Retailer 3
-
$1,727 AUD
$1,210 USD
View
B+
Retailer 4
-
$1,748 AUD
$1,225 USD
View
B+
Retailer 5
-
$2,205 AUD
$1,545 USD
View
B+
Retailer 6
-
$2,257 AUD
£1,245 GBP
View
B+
Retailer 7
-
$2,696 AUD
ZAR 30,521 ZAR
View
B
Retailer 8
-
$3,049 AUD
$2,137 USD
View
B
Retailer 9
-
$3,757 AUD
$2,633 USD
View
B
Retailer 10
-
$4,348 AUD
$3,047 USD
View
B
Retailer 11
-
$4,827 AUD
$3,383 USD
View
B
Retailer 12
-
$5,092 AUD
$3,568 USD
View
B
Retailer 13
-
$5,498 AUD
£3,034 GBP
View
Most Expensive
B
Brilliant Earth
22318645A · Oct 31
$6,920 AUD
$4,850 USD
View
13 more retailers have this diamond
Prices start from $1,414 AUDSave up to $5,506 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
1.51ct Heart
$1,414 AUD