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Heart|Lab Grown|IGI

1.69ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG840634384

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840634384

Diamond specifications and retailer prices

From $1,075 AUD
$755 USD
As of October 30, 2026
Save $4,862 AUD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,936 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.69ct lab-grown heart diamond

This 1.69ct 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 LG840634384 or 840634384. Listed at 15 retailers as of October 30, 2026, with prices from $1,075 to $5,936, a $4,862 spread on the same certified stone. Brilliant Earth lists it at $5,936. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.69
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634384
Dimensions7.25 × 8.20 × 4.73 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
7.25 mm8.20 mm1.69 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634384
Side View
Table 61.0%Crown 37.3°Girdle: MED-THKPavilion 38.1°Culet: NoneDepth 57.7%

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: $5,936 AUD|Low: $1,075 AUD|High: $7,702 AUD|Avg: $2,910 AUD|-22.9%
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
October 31, 2026
Retailer 12$1,075 AUD
Retailer 4$1,247 AUD
Retailer 5$1,330 AUD
Retailer 13$1,414 AUD
Retailer 8$1,495 AUD
Retailer 10$1,594 AUD
Retailer 2$1,910 AUD
Retailer 3$1,979 AUD
Retailer 11$2,017 AUD
Retailer 9$2,965 AUD
Retailer 7$4,090 AUD
Retailer 15$4,302 AUD
Retailer 6$4,752 AUD
Retailer 14$5,081 AUD
Brilliant Earth$5,936 AUD

3 data points across 15 retailers

15 retailers$1,075 AUD to $5,936 AUD

A
Cheapest Retailer
-
$1,075 AUD
$755 USD
A
Retailer 2
-
$1,247 AUD
$876 USD
View
A
Retailer 3
-
$1,330 AUD
$934 USD
View
Final sale: no returns
A
Retailer 4
-
$1,414 AUD
£782 GBP
View
A
Retailer 5
-
$1,495 AUD
$1,050 USD
View
A
Retailer 6
-
$1,594 AUD
$1,120 USD
View
B+
Retailer 7
-
$1,910 AUD
£1,056 GBP
View
B+
Retailer 8
-
$1,979 AUD
$1,390 USD
View
B+
Retailer 9
-
$2,017 AUD
$1,417 USD
View
B+
Retailer 10
-
$2,965 AUD
$2,083 USD
View
B
Retailer 11
-
$4,090 AUD
$2,873 USD
View
B
Retailer 12
-
$4,302 AUD
$3,022 USD
View
B
Retailer 13
-
$4,752 AUD
SGD 4,511 SGD
View
B
Retailer 14
-
$5,081 AUD
$3,569 USD
View
Most Expensive
B
Brilliant Earth
22348567A · Oct 30
$5,936 AUD
$4,170 USD
View
14 more retailers have this diamond
Prices start from $1,075 AUDSave up to $4,862 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
1.69ct Heart
$1,075 AUD