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Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

VG • D/FL • IGI LG825655952

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825655952

Diamond specifications and retailer prices

From $1,040 AUD
$729 USD
As of November 1, 2026
Save $4,082 AUD (80%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,123 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 very-good cut grade and certified by IGI LG825655952 or 825655952. Listed at 21 retailers as of November 1, 2026, with prices from $1,040 to $5,123, a $4,082 spread on the same certified stone. Brilliant Earth lists it at $5,123. 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

1.51
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825655952
Dimensions7.19 × 7.95 × 4.53 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
7.19 mm7.95 mm1.51 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825655952
Side View
Table 61.0%Crown 38°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 57.0%

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 1
Current: $5,123 AUD|Low: $1,040 AUD|High: $6,920 AUD|Avg: $2,885 AUD|-26.0%
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 5$1,040 AUD
Retailer 12$1,219 AUD
Retailer 9$1,264 AUD
Retailer 15$1,270 AUD
Retailer 10$1,467 AUD
Retailer 7$1,532 AUD
Retailer 18$1,611 AUD
Retailer 6$1,624 AUD
Retailer 13$1,723 AUD
Retailer 11$1,748 AUD
Retailer 2$1,981 AUD
Retailer 16$2,481 AUD
Retailer 4$2,730 AUD
Retailer 3$3,480 AUD
Retailer 8$3,720 AUD
Retailer 17$3,759 AUD
Retailer 14$4,543 AUD
Brilliant Earth$5,123 AUD

29 data points across 18 retailers

21 retailers$1,040 AUD to $5,123 AUD

A
Cheapest Retailer
-
$1,040 AUD
$729 USD
Final sale: no returns
A
Retailer 2
-
$1,219 AUD
£673 GBP
View
Retailer 3
-
$1,264 AUD
$886 USD
View
Price last confirmed 25 days ago
A
Retailer 4
-
$1,270 AUD
$890 USD
View
Retailer 5
-
$1,380 AUD
$967 USD
View
Price last confirmed 34 days ago
Retailer 6
-
$1,467 AUD
$1,028 USD
View
Price last confirmed 30 days ago
Retailer 7
-
$1,467 AUD
$1,028 USD
View
Price last confirmed 21 days ago
A
Retailer 8
-
$1,532 AUD
$1,074 USD
View
B+
Retailer 9
-
$1,611 AUD
$1,129 USD
View
B+
Retailer 10
-
$1,624 AUD
$1,138 USD
View
B+
Retailer 11
-
$1,723 AUD
£951 GBP
View
B+
Retailer 12
-
$1,748 AUD
€1,167 EUR
View
B+
Retailer 13
-
$1,981 AUD
ZAR 22,431 ZAR
View
B+
Retailer 14
-
$2,481 AUD
$1,739 USD
View
B+
Retailer 15
-
$2,730 AUD
$1,913 USD
View
B
Retailer 16
-
$3,480 AUD
$2,439 USD
View
B
Retailer 17
-
$3,720 AUD
$2,607 USD
View
B
Retailer 18
-
$3,759 AUD
$2,634 USD
View
Retailer 19
-
$4,124 AUD
$2,890 USD
View
Price last confirmed 28 days ago
B
Retailer 20
-
$4,543 AUD
£2,507 GBP
View
Most Expensive
B
Brilliant Earth
21584228A · Nov 2
$5,123 AUD
$3,590 USD
View
20 more retailers have this diamond
Prices start from $1,040 AUDSave up to $4,082 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
$1,040 AUD