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Heart|Lab Grown|IGI

1.65ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG846663395

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG846663395

Diamond specifications and retailer prices

From $965 AUD
$678 USD
As of October 30, 2026
Save $5,042 AUD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,008 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.65ct lab-grown heart diamond

This 1.65ct 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 LG846663395 or 846663395. Listed at 13 retailers as of October 30, 2026, with prices from $965 to $6,008, a $5,042 spread on the same certified stone. Brilliant Earth lists it at $6,008. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.65
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663395
Dimensions6.99 × 7.92 × 4.94 mm
L/W Ratio1.13
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
6.99 mm7.92 mm1.65 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663395
Side View
Table 59.0%Crown 37.9°Girdle: STK-THKPavilion 40.3°Culet: NoneDepth 62.4%

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: $6,008 AUD|Low: $965 AUD|High: $7,517 AUD|Avg: $2,953 AUD|-20.1%
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
October 31, 2026
Retailer 6$965 AUD
Retailer 4$1,051 AUD
Retailer 7$1,269 AUD
Retailer 10$1,344 AUD
Retailer 8$1,374 AUD
Retailer 3$1,821 AUD
Retailer 13$1,940 AUD
Retailer 2$2,860 AUD
Retailer 11$3,148 AUD
Retailer 5$4,420 AUD
Retailer 9$4,742 AUD
Retailer 12$4,960 AUD
Brilliant Earth$6,008 AUD

5 data points across 13 retailers

13 retailers$965 AUD to $6,008 AUD

A
Cheapest Retailer
-
$965 AUD
$678 USD
A
Retailer 2
-
$1,051 AUD
$738 USD
View
A
Retailer 3
-
$1,269 AUD
£702 GBP
View
A
Retailer 4
-
$1,344 AUD
$944 USD
View
A
Retailer 5
-
$1,374 AUD
$965 USD
View
B+
Retailer 6
-
$1,821 AUD
$1,279 USD
View
B+
Retailer 7
-
$1,940 AUD
$1,363 USD
View
B+
Retailer 8
-
$2,860 AUD
$2,009 USD
View
B
Retailer 9
-
$3,148 AUD
$2,211 USD
View
B
Retailer 10
-
$4,420 AUD
$3,105 USD
View
B
Retailer 11
-
$4,742 AUD
£2,623 GBP
View
B
Retailer 12
-
$4,960 AUD
$3,484 USD
View
Most Expensive
B
Brilliant Earth
22337110A · Oct 30
$6,008 AUD
$4,220 USD
View
12 more retailers have this diamond
Prices start from $965 AUDSave up to $5,042 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
1.65ct Heart
$965 AUD