CaratHunter
Plans
Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG836620979

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836620979

Diamond specifications and retailer prices

From $893 AUD
$626 USD
As of November 2, 2026
Save $4,286 AUD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,180 AUD at Brilliant Earth · As of November 2, 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 LG836620979 or 836620979. Listed at 19 retailers as of November 2, 2026, with prices from $893 to $5,180, a $4,286 spread on the same certified stone. Brilliant Earth lists it at $5,180. 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 angle38.3°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836620979
Dimensions7.07 × 7.83 × 4.56 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
7.07 mm7.83 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836620979
Side View
Table 59.0%Crown 38.3°Girdle: Slightly ThickPavilion 36.9°Culet: NoneDepth 58.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $5,180 AUD|Low: $893 AUD|High: $7,120 AUD|Avg: $2,771 AUD|-27.3%
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
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 12$893 AUD
Retailer 4$1,016 AUD
Retailer 18$1,084 AUD
Retailer 7$1,180 AUD
Retailer 16$1,334 AUD
Retailer 5$1,612 AUD
Retailer 13$1,733 AUD
Retailer 15$1,733 AUD
Retailer 17$1,768 AUD
Retailer 11$1,991 AUD
Retailer 2$2,551 AUD
Retailer 3$3,046 AUD
Retailer 9$3,566 AUD
Retailer 6$3,739 AUD
Retailer 10$4,241 AUD
Retailer 8$4,509 AUD
Retailer 14$4,565 AUD
Brilliant Earth$5,180 AUD

35 data points across 18 retailers

19 retailers$893 AUD to $5,180 AUD

A
Cheapest Retailer
-
$893 AUD
$626 USD
A
Retailer 2
-
$1,016 AUD
$712 USD
View
A
Retailer 3
-
$1,084 AUD
$760 USD
View
Retailer 4
-
$1,122 AUD
$786 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$1,180 AUD
$827 USD
View
Final sale: no returns
A
Retailer 6
-
$1,334 AUD
$935 USD
View
A
Retailer 7
-
$1,612 AUD
$1,130 USD
View
B+
Retailer 8
-
$1,733 AUD
£956 GBP
View
B+
Retailer 9
-
$1,733 AUD
€1,157 EUR
View
B+
Retailer 10
-
$1,768 AUD
$1,239 USD
View
B+
Retailer 11
-
$1,991 AUD
ZAR 22,544 ZAR
View
B+
Retailer 12
-
$2,551 AUD
$1,788 USD
View
B+
Retailer 13
-
$3,046 AUD
$2,135 USD
View
B+
Retailer 14
-
$3,566 AUD
$2,499 USD
View
B
Retailer 15
-
$3,739 AUD
$2,620 USD
View
B
Retailer 16
-
$4,241 AUD
SGD 4,016 SGD
View
B
Retailer 17
-
$4,509 AUD
$3,160 USD
View
B
Retailer 18
-
$4,565 AUD
£2,519 GBP
View
Most Expensive
B
Brilliant Earth
21590133A · Nov 2
$5,180 AUD
$3,630 USD
View
18 more retailers have this diamond
Prices start from $893 AUDSave up to $4,286 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
$893 AUD