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Round|Lab Grown|IGI

1.81ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG803675180

Shape and cutting style on the report: Round brilliant

Certificate IGI LG803675180

Diamond specifications and retailer prices

From $520 AUD
$365 USD
As of October 30, 2026
Save $4,164 AUD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,684 AUD at Brilliant Earth · As of October 29, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG803675180 or 803675180. Listed at 22 retailers as of October 29, 2026, with prices from $520 to $4,684, a $4,164 spread on the same certified stone. Brilliant Earth lists it at $4,684. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803675180
Dimensions7.84 × 7.77 × 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
7.84 mm7.77 mm1.81 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803675180
Side View
Table 57.0%Crown 35.2°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.6%

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 30
Current: $4,684 AUD|Low: $520 AUD|High: $4,684 AUD|Avg: $1,644 AUD
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
October 30, 2026
Retailer 7$520 AUD
Retailer 4$811 AUD
Retailer 13$811 AUD
Retailer 10$934 AUD
Retailer 12$990 AUD
Retailer 2$1,027 AUD
Retailer 5$1,066 AUD
Retailer 9$1,303 AUD
Retailer 11$1,343 AUD
Retailer 16$1,690 AUD
Retailer 17$1,724 AUD
Retailer 8$1,915 AUD
Retailer 3$2,019 AUD
Retailer 6$2,273 AUD
Retailer 14$2,312 AUD
Retailer 15$3,666 AUD
Brilliant Earth$4,684 AUD

38 data points across 17 retailers

22 retailers$520 AUD to $4,684 AUD

Retailer 1
-
$464 AUD
$326 USD
Price last confirmed 20 days ago
A
Retailer 2
-
$520 AUD
$365 USD
View
Final sale: no returns
Retailer 3
-
$577 AUD
$405 USD
View
Price last confirmed 18 days ago
Retailer 4
-
$577 AUD
$405 USD
View
Price last confirmed 28 days ago
A
Retailer 5
-
$811 AUD
$570 USD
View
A
Retailer 6
-
$811 AUD
$570 USD
View
A
Retailer 7
-
$934 AUD
€625 EUR
View
A
Retailer 8
-
$990 AUD
ZAR 11,234 ZAR
View
A
Retailer 9
-
$1,027 AUD
£568 GBP
View
A
Retailer 10
-
$1,066 AUD
$749 USD
View
A
Retailer 11
-
$1,303 AUD
$915 USD
View
A
Retailer 12
-
$1,343 AUD
View
B+
Retailer 13
-
$1,690 AUD
$1,187 USD
View
B+
Retailer 14
-
$1,724 AUD
$1,211 USD
View
Retailer 15
-
$1,852 AUD
$1,301 USD
View
Price last confirmed 22 days ago
B+
Retailer 16
-
$1,915 AUD
$1,345 USD
View
B+
Retailer 17
-
$2,019 AUD
$1,418 USD
View
B+
Retailer 18
-
$2,177 AUD
$1,529 USD
View
B+
Retailer 19
-
$2,273 AUD
$1,597 USD
View
B+
Retailer 20
-
$2,312 AUD
£1,279 GBP
View
B
Retailer 21
-
$3,666 AUD
$2,575 USD
View
Most Expensive
B
Brilliant Earth
20269441A · Oct 29
$4,684 AUD
$3,290 USD
View
21 more retailers have this diamond
Prices start from $520 AUDSave up to $4,164 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
$520 AUD