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Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG846662427

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG846662427

Diamond specifications and retailer prices

From $1,165 AUD
£643 GBP
As of November 2, 2026
Save $5,983 AUD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $7,149 AUD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 LG846662427 or 846662427. Listed at 10 retailers as of November 2, 2026, with prices from $1,165 to $7,149, a $5,983 spread on the same certified stone. Do Amore Diamonds lists it at $7,149. 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 angle34.4°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662427
Dimensions7.55 × 7.18 × 4.69 mm
L/W Ratio1.05
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
7.55 mm7.18 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662427
Side View
Table 58.0%Crown 34.4°Girdle: STK-THKPavilion 39.6°Culet: NoneDepth 62.1%

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: $7,149 AUD|Low: $1,165 AUD|High: $8,148 AUD|Avg: $3,109 AUD|-12.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 2$1,165 AUD
Retailer 6$1,199 AUD
Retailer 10$1,249 AUD
Retailer 7$1,537 AUD
Retailer 4$1,766 AUD
Retailer 8$2,477 AUD
Retailer 9$3,081 AUD
Retailer 3$4,344 AUD
Retailer 5$4,780 AUD
Do Amore Diamonds$7,149 AUD

15 data points across 10 retailers

10 retailers$1,165 AUD to $7,149 AUD

A
Cheapest Retailer
-
$1,165 AUD
£643 GBP
A
Retailer 2
-
$1,199 AUD
$840 USD
View
A
Retailer 3
-
$1,249 AUD
$875 USD
View
A
Retailer 4
-
$1,537 AUD
$1,077 USD
View
B+
Retailer 5
-
$1,766 AUD
€1,179 EUR
View
B+
Retailer 6
-
$2,477 AUD
$1,736 USD
View
B
Retailer 7
-
$3,081 AUD
$2,159 USD
View
B
Retailer 8
-
$4,344 AUD
£2,397 GBP
View
B
Retailer 9
-
$4,780 AUD
$3,350 USD
View
Most Expensive
B
Do Amore Diamonds
27-3C43927AF · Nov 2
$7,149 AUD
$5,010 USD
View
9 more retailers have this diamond
Prices start from $1,165 AUDSave up to $5,983 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
$1,165 AUD