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Heart|Lab Grown|IGI

1.71ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG749573318

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG749573318

Diamond specifications and retailer prices

From $1,032 AUD
$725 USD
As of October 30, 2026
Save $4,748 AUD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,780 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.71ct lab-grown heart diamond

This 1.71ct 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 LG749573318 or 749573318. Listed at 20 retailers as of October 30, 2026, with prices from $1,032 to $5,780, a $4,748 spread on the same certified stone. Brilliant Earth lists it at $5,780. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749573318
Dimensions7.50 × 8.43 × 4.66 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
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
7.50 mm8.43 mm1.71 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749573318
Side View
Table 57.0%Crown 33.6°Girdle: MED-THKPavilion 37°Culet: NoneDepth 55.3%

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: Oct 30
Current: $5,780 AUD|Low: $1,032 AUD|High: $7,801 AUD|Avg: $2,894 AUD|-25.9%
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
Retailer 19
October 31, 2026
Retailer 7$1,032 AUD
Retailer 5$1,123 AUD
Retailer 2$1,155 AUD
Retailer 17$1,197 AUD
Retailer 10$1,224 AUD
Retailer 18$1,452 AUD
Retailer 6$1,549 AUD
Retailer 12$1,920 AUD
Retailer 15$1,942 AUD
Retailer 4$2,002 AUD
Retailer 14$2,200 AUD
Retailer 8$2,688 AUD
Retailer 19$3,365 AUD
Retailer 13$3,955 AUD
Retailer 16$4,126 AUD
Retailer 3$4,706 AUD
Retailer 9$4,769 AUD
Retailer 11$5,094 AUD
Brilliant Earth$5,780 AUD

28 data points across 19 retailers

20 retailers$1,032 AUD to $5,780 AUD

A
Cheapest Retailer
-
$1,032 AUD
$725 USD
A
Retailer 2
-
$1,123 AUD
$789 USD
View
A
Retailer 3
-
$1,155 AUD
$811 USD
View
Final sale: no returns
A
Retailer 4
-
$1,197 AUD
$841 USD
View
Retailer 5
-
$1,224 AUD
$860 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$1,452 AUD
$1,020 USD
View
A
Retailer 7
-
$1,549 AUD
$1,088 USD
View
A
Retailer 8
-
$1,920 AUD
£1,062 GBP
View
B+
Retailer 9
-
$1,942 AUD
$1,364 USD
View
B+
Retailer 10
-
$2,002 AUD
$1,406 USD
View
B+
Retailer 11
-
$2,200 AUD
ZAR 24,969 ZAR
View
B+
Retailer 12
-
$2,688 AUD
$1,888 USD
View
B+
Retailer 13
-
$3,365 AUD
$2,364 USD
View
B
Retailer 14
-
$3,955 AUD
$2,778 USD
View
B+
Retailer 15
-
$4,083 AUD
$2,868 USD
View
B+
Retailer 16
-
$4,126 AUD
$2,899 USD
View
B
Retailer 17
-
$4,706 AUD
£2,603 GBP
View
B
Retailer 18
-
$4,769 AUD
SGD 4,527 SGD
View
B
Retailer 19
-
$5,094 AUD
$3,578 USD
View
Most Expensive
B
Brilliant Earth
21417283A · Oct 31
$5,780 AUD
$4,060 USD
View
19 more retailers have this diamond
Prices start from $1,032 AUDSave up to $4,748 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
1.71ct Heart
$1,032 AUD