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Round|Lab Grown|IGI

1.81ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG818658778

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818658778

Diamond specifications and retailer prices

From $540 CAD
$386 USD
As of October 28, 2026
Save $4,064 CAD (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,605 CAD 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 LG818658778 or 818658778. Listed at 21 retailers as of October 28, 2026, with prices from $540 to $4,605, a $4,064 spread on the same certified stone. Brilliant Earth lists it at $4,605. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658778
Dimensions7.81 × 7.87 × 4.83 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
7.81 mm7.87 mm1.81 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658778
Side View
Table 57.0%Crown 34.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.6%

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 28
Current: $4,605 CAD|Low: $540 CAD|High: $4,605 CAD|Avg: $1,684 CAD
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 5$540 CAD
Retailer 15$847 CAD
Retailer 17$861 CAD
Retailer 2$905 CAD
Retailer 11$970 CAD
Retailer 14$1,032 CAD
Retailer 10$1,076 CAD
Retailer 6$1,365 CAD
Retailer 13$1,394 CAD
Retailer 3$1,703 CAD
Retailer 8$1,786 CAD
Retailer 7$1,989 CAD
Retailer 4$2,115 CAD
Retailer 16$2,322 CAD
Retailer 12$2,359 CAD
Retailer 9$3,625 CAD
Brilliant Earth$4,605 CAD

27 data points across 17 retailers

21 retailers$540 CAD to $4,605 CAD

Retailer 1
-
$491 CAD
$351 USD
Price last confirmed 19 days ago
A
Retailer 2
-
$540 CAD
$386 USD
View
Final sale: no returns
Retailer 3
-
$609 CAD
$435 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$609 CAD
$435 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
$847 CAD
$605 USD
View
A
Retailer 6
-
$861 CAD
$615 USD
View
A
Retailer 7
-
$905 CAD
£509 GBP
View
A
Retailer 8
-
$970 CAD
€660 EUR
View
A
Retailer 9
-
$1,032 CAD
ZAR 11,907 ZAR
View
A
Retailer 10
-
$1,076 CAD
£605 GBP
View
A
Retailer 11
-
$1,365 CAD
$975 USD
View
A
Retailer 12
-
$1,394 CAD
A$1,532 AUD
View
A
Retailer 13
-
$1,703 CAD
$1,217 USD
View
B+
Retailer 14
-
$1,786 CAD
$1,276 USD
View
Retailer 15
-
$1,957 CAD
$1,398 USD
View
Price last confirmed 22 days ago
B+
Retailer 16
-
$1,989 CAD
$1,421 USD
View
B+
Retailer 17
-
$2,115 CAD
$1,511 USD
View
B+
Retailer 18
-
$2,322 CAD
$1,659 USD
View
B+
Retailer 19
-
$2,359 CAD
£1,327 GBP
View
B
Retailer 20
-
$3,625 CAD
$2,590 USD
View
Most Expensive
B
Brilliant Earth
21580806A · Oct 29
$4,605 CAD
$3,290 USD
View
20 more retailers have this diamond
Prices start from $540 CADSave up to $4,064 CAD

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
$540 CAD