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Round|Lab Grown|IGI

1.81ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG840634392

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840634392

Diamond specifications and retailer prices

From $671 AUD
$471 USD
As of October 29, 2026
Save $4,155 AUD (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,826 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.81ct lab-grown round diamond

This 1.81ct lab-grown round 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 LG840634392 or 840634392. Listed at 21 retailers as of October 29, 2026, with prices from $671 to $4,826, a $4,155 spread on the same certified stone. Brilliant Earth lists it at $4,826. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634392
Dimensions7.82 × 7.87 × 4.81 mm
L/W Ratio1.01
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
7.82 mm7.87 mm1.81 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634392
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.2%

Caratlytics Score

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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 29
Current: $4,826 AUD|Low: $671 AUD|High: $5,694 AUD|Avg: $2,083 AUD|-15.3%
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
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Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 7$671 AUD
Retailer 20$750 AUD
Retailer 8$776 AUD
Retailer 12$831 AUD
Retailer 5$1,032 AUD
Retailer 2$1,067 AUD
Retailer 10$1,183 AUD
Retailer 3$1,297 AUD
Retailer 13$1,374 AUD
Retailer 15$1,378 AUD
Retailer 16$1,428 AUD
Retailer 6$1,963 AUD
Retailer 4$2,234 AUD
Retailer 14$2,671 AUD
Retailer 11$2,713 AUD
Retailer 9$2,856 AUD
Retailer 19$2,903 AUD
Retailer 21$2,964 AUD
Retailer 17$3,055 AUD
Retailer 18$4,662 AUD
Brilliant Earth$4,826 AUD

12 data points across 21 retailers

21 retailers$671 AUD to $4,826 AUD

A
Cheapest Retailer
-
$671 AUD
$471 USD
A
Retailer 2
-
$750 AUD
$527 USD
View
A
Retailer 3
-
$776 AUD
$545 USD
View
Final sale: no returns
A
Retailer 4
-
$831 AUD
$584 USD
View
A
Retailer 5
-
$1,032 AUD
$725 USD
View
A
Retailer 6
-
$1,067 AUD
£590 GBP
View
A
Retailer 7
-
$1,183 AUD
$831 USD
View
A
Retailer 8
-
$1,297 AUD
$911 USD
View
A
Retailer 9
-
$1,374 AUD
£760 GBP
View
A
Retailer 10
-
$1,378 AUD
€922 EUR
View
A
Retailer 11
-
$1,428 AUD
ZAR 16,201 ZAR
View
B+
Retailer 12
-
$1,963 AUD
$1,379 USD
View
B+
Retailer 13
-
$2,234 AUD
$1,569 USD
View
B+
Retailer 14
-
$2,671 AUD
$1,876 USD
View
B+
Retailer 15
-
$2,713 AUD
$1,906 USD
View
B+
Retailer 16
-
$2,856 AUD
SGD 2,711 SGD
View
B+
Retailer 17
-
$2,903 AUD
$2,039 USD
View
B+
Retailer 18
-
$2,964 AUD
$2,082 USD
View
B+
Retailer 19
-
$3,055 AUD
£1,690 GBP
View
B
Retailer 20
-
$4,662 AUD
$3,275 USD
View
Most Expensive
B
Brilliant Earth
22192244A · Oct 30
$4,826 AUD
$3,390 USD
View
20 more retailers have this diamond
Prices start from $671 AUDSave up to $4,155 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
1.81ct Round
$671 AUD