CaratHunter
Plans
Cushion|Lab Grown|IGI

1.77ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG671405868

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG671405868

Diamond specifications and retailer prices

From $735 CAD
$525 USD
As of October 29, 2026
Save $5,773 CAD (89%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,508 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.77ct lab-grown cushion diamond

This 1.77ct lab-grown cushion 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 LG671405868 or 671405868. Listed at 20 retailers as of October 29, 2026, with prices from $735 to $6,508, a $5,773 spread on the same certified stone. Brilliant Earth lists it at $6,508. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671405868
Dimensions8.08 × 6.39 × 4.49 mm
L/W Ratio1.26
Girdle conditionFaceted
Culet sizePointed
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
8.08 mm6.39 mm1.77 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671405868
Side View
Table 61.0%Crown 34.5°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 70.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $6,508 CAD|Low: $735 CAD|High: $6,508 CAD|Avg: $2,244 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
October 30, 2026
Retailer 14$735 CAD
Retailer 8$813 CAD
Retailer 3$1,134 CAD
Retailer 7$1,134 CAD
Retailer 4$1,174 CAD
Retailer 13$1,232 CAD
Retailer 9$1,349 CAD
Retailer 16$1,398 CAD
Retailer 10$1,895 CAD
Retailer 11$1,973 CAD
Retailer 6$2,523 CAD
Retailer 12$2,658 CAD
Retailer 2$2,871 CAD
Retailer 15$3,006 CAD
Retailer 5$4,087 CAD
Brilliant Earth$6,508 CAD

34 data points across 16 retailers

20 retailers$735 CAD to $6,508 CAD

A
Cheapest Retailer
-
$735 CAD
$525 USD
Final sale: no returns
Retailer 2
-
$813 CAD
$581 USD
View
Price last confirmed 17 days ago
Retailer 3
-
$932 CAD
HK$5,200 HKD
View
Price last confirmed 56 days ago
A
Retailer 4
-
$1,134 CAD
$810 USD
View
A
Retailer 5
-
$1,134 CAD
$810 USD
View
A
Retailer 6
-
$1,174 CAD
$839 USD
View
A
Retailer 7
-
$1,232 CAD
€838 EUR
View
A
Retailer 8
-
$1,349 CAD
£759 GBP
View
A
Retailer 9
-
$1,398 CAD
ZAR 16,141 ZAR
View
A
Retailer 10
-
$1,895 CAD
A$2,083 AUD
View
A
Retailer 11
-
$1,973 CAD
$1,410 USD
View
B+
Retailer 12
-
$2,523 CAD
$1,803 USD
View
Retailer 13
-
$2,580 CAD
SGD 2,491 SGD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
$2,658 CAD
$1,899 USD
View
B+
Retailer 15
-
$2,763 CAD
$1,974 USD
View
B+
Retailer 16
-
$2,871 CAD
$2,052 USD
View
B+
Retailer 17
-
$3,006 CAD
£1,691 GBP
View
B+
Retailer 18
-
$4,087 CAD
$2,920 USD
View
Retailer 19
-
$4,157 CAD
$2,970 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
12605322A · Oct 29
$6,508 CAD
$4,650 USD
View
19 more retailers have this diamond
Prices start from $735 CADSave up to $5,773 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 Cushion
$735 CAD