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Heart|Lab Grown|IGI

1.16ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG846663659

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG846663659

Diamond specifications and retailer prices

From $590 AUD
£326 GBP
As of November 1, 2026
Save $2,927 AUD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,516 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.16ct lab-grown heart diamond

This 1.16ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846663659 or 846663659. Listed at 10 retailers as of October 31, 2026, with prices from $590 to $3,516, a $2,927 spread on the same certified stone. Brilliant Earth lists it at $3,516. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.16
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663659
Dimensions6.70 × 7.24 × 4.23 mm
L/W Ratio1.08
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
6.70 mm7.24 mm1.16 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663659
Side View
Table 57.0%Crown 33°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 58.4%

Caratlytics Score

How it works →
A+
Exceptional
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 1
Current: $3,516 AUD|Low: $482 AUD|High: $3,516 AUD|Avg: $1,339 AUD|+16.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 2$590 AUD
Retailer 8$777 AUD
Retailer 4$790 AUD
Retailer 10$855 AUD
Retailer 5$1,090 AUD
Retailer 6$1,434 AUD
Retailer 3$1,841 AUD
Retailer 9$1,880 AUD
Retailer 7$2,303 AUD
Brilliant Earth$3,516 AUD

6 data points across 10 retailers

10 retailers$590 AUD to $3,516 AUD

A+
Cheapest Retailer
-
$590 AUD
£326 GBP
A
Retailer 2
-
$777 AUD
$546 USD
View
A
Retailer 3
-
$790 AUD
$555 USD
View
A
Retailer 4
-
$855 AUD
€572 EUR
View
B+
Retailer 5
-
$1,090 AUD
$766 USD
View
B+
Retailer 6
-
$1,434 AUD
$1,007 USD
View
B
Retailer 7
-
$1,841 AUD
$1,293 USD
View
B
Retailer 8
-
$1,880 AUD
£1,040 GBP
View
B
Retailer 9
-
$2,303 AUD
$1,618 USD
View
Most Expensive
B
Brilliant Earth
22319254A · Oct 31
$3,516 AUD
$2,470 USD
View
9 more retailers have this diamond
Prices start from $590 AUDSave up to $2,927 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+
1.16ct Heart
$590 AUD