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Cushion|Lab Grown|IGI

1.71ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • IGI LG529242861

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG529242861

Diamond specifications and retailer prices

From $346 CAD
$248 USD
As of October 30, 2026
Save $1,330 CAD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,676 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.71ct lab-grown cushion diamond

This 1.71ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG529242861 or 529242861. Listed at 11 retailers as of October 30, 2026, with prices from $346 to $1,676, a $1,330 spread on the same certified stone. Brilliant Earth lists it at $1,676. 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

1.71
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529242861
Dimensions7.10 × 6.81 × 4.57 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Blue 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
7.10 mm6.81 mm1.71 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529242861
Side View
Table 63.5%Crown 34.9°Girdle: MED-THKPavilion 40°Culet: NoneDepth 67.1%

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 30
Current: $1,676 CAD|Low: $246 CAD|High: $1,676 CAD|Avg: $871 CAD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 10$346 CAD
Retailer 7$384 CAD
Retailer 8$517 CAD
Retailer 2$697 CAD
Retailer 4$715 CAD
Retailer 9$749 CAD
Retailer 11$834 CAD
Retailer 6$1,006 CAD
Retailer 3$1,308 CAD
Retailer 5$1,542 CAD
Brilliant Earth$1,676 CAD

43 data points across 11 retailers

11 retailers$346 CAD to $1,676 CAD

A
Cheapest Retailer
-
$346 CAD
$248 USD
Final sale: no returns
A
Retailer 2
-
$384 CAD
$275 USD
View
B+
Retailer 3
-
$517 CAD
$370 USD
View
A
Retailer 4
-
$697 CAD
€475 EUR
View
A
Retailer 5
-
$715 CAD
£403 GBP
View
A
Retailer 6
-
$749 CAD
$536 USD
View
A
Retailer 7
-
$834 CAD
$597 USD
View
B+
Retailer 8
-
$1,006 CAD
$720 USD
View
B
Retailer 9
-
$1,308 CAD
$937 USD
View
B+
Retailer 10
-
$1,542 CAD
£869 GBP
View
Most Expensive
B
Brilliant Earth
11260489A · Oct 30
$1,676 CAD
$1,200 USD
View
10 more retailers have this diamond
Prices start from $346 CADSave up to $1,330 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
1.71ct Cushion
$346 CAD