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Round|Lab Grown|IGI

1.77ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG620415433

Shape and cutting style on the report: Round brilliant

Certificate IGI LG620415433

Diamond specifications and retailer prices

From $346 CAD
$247 USD
As of October 29, 2026
Save $1,950 CAD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,295 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.77ct lab-grown round diamond

This 1.77ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG620415433 or 620415433. Listed at 19 retailers as of October 29, 2026, with prices from $346 to $2,295, a $1,950 spread on the same certified stone. Brilliant Earth lists it at $2,295. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.77
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620415433
Dimensions7.82 × 7.86 × 4.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.82 mm7.86 mm1.77 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620415433
Side View
Table 59.0%Crown 33.2°Girdle: MediumPavilion 41.1°Culet: NoneDepth 60.6%

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 29
Current: $2,295 CAD|Low: $332 CAD|High: $2,575 CAD|Avg: $922 CAD|+9.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 9$346 CAD
Retailer 3$388 CAD
Retailer 10$428 CAD
Retailer 11$428 CAD
Retailer 8$577 CAD
Retailer 5$707 CAD
Retailer 4$744 CAD
Retailer 2$811 CAD
Retailer 6$1,383 CAD
Retailer 7$1,721 CAD
Brilliant Earth$2,295 CAD

36 data points across 11 retailers

19 retailers$346 CAD to $2,295 CAD

A
Cheapest Retailer
-
$346 CAD
$247 USD
A
Retailer 2
-
$346 CAD
$247 USD
View
Price last confirmed 34 days ago
A
Retailer 3
-
$388 CAD
$277 USD
View
Final sale: no returns
A
Retailer 4
-
$402 CAD
$287 USD
View
Price last confirmed 37 days ago
A
Retailer 5
-
$423 CAD
$302 USD
View
Price last confirmed 33 days ago
A
Retailer 6
-
$428 CAD
$306 USD
View
A
Retailer 7
-
$428 CAD
$306 USD
View
A
Retailer 8
-
$484 CAD
HK$2,700 HKD
View
B+
Retailer 9
-
$577 CAD
$412 USD
View
A
Retailer 10
-
$707 CAD
€481 EUR
View
A
Retailer 11
-
$744 CAD
£419 GBP
View
B+
Retailer 12
-
$794 CAD
$567 USD
View
A
Retailer 13
-
$811 CAD
£456 GBP
View
B+
Retailer 14
-
$899 CAD
$642 USD
View
B
Retailer 15
-
$1,379 CAD
$985 USD
View
B
Retailer 16
-
$1,379 CAD
$985 USD
View
Price last confirmed 38 days ago
B
Retailer 17
-
$1,383 CAD
$988 USD
View
B
Retailer 18
-
$1,721 CAD
£968 GBP
View
Most Expensive
B
Brilliant Earth
19043514A · Oct 29
$2,295 CAD
$1,640 USD
View
18 more retailers have this diamond
Prices start from $346 CADSave up to $1,950 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
1.77ct Round
$346 CAD