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Princess|Lab Grown|IGI

1.71ct F SI1 Princess Lab Grown Diamond

ID • F/SI1 • IGI LG657423845

Shape and cutting style on the report: Princess cut

Certificate IGI LG657423845

Diamond specifications and retailer prices

From $268 CAD
$192 USD
As of November 2, 2026
Save $1,506 CAD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,774 CAD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.71ct lab-grown princess diamond

This 1.71ct lab-grown princess sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG657423845 or 657423845. Listed at 15 retailers as of October 31, 2026, with prices from $268 to $1,774, a $1,506 spread on the same certified stone. Brilliant Earth lists it at $1,774. 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
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.5°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657423845
Dimensions6.71 × 6.46 × 4.27 mm
L/W Ratio1.04
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.71 mm6.46 mm1.71 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657423845
Side View
Table 76.0%Crown 44.5°Girdle: Slightly ThickPavilion 35.9°Culet: NoneDepth 66.1%

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: Nov 2
Current: $1,774 CAD|Low: $268 CAD|High: $2,822 CAD|Avg: $966 CAD|-37.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9$268 CAD
Retailer 2$427 CAD
Retailer 10$583 CAD
Retailer 4$602 CAD
Retailer 6$623 CAD
Retailer 3$704 CAD
Retailer 11$792 CAD
Retailer 8$1,076 CAD
Retailer 7$1,411 CAD
Retailer 5$1,559 CAD
Brilliant Earth$1,774 CAD

44 data points across 11 retailers

15 retailers$268 CAD to $1,774 CAD

A
Cheapest Retailer
-
$268 CAD
$192 USD
A
Retailer 2
-
$312 CAD
$223 USD
View
A
Retailer 3
-
$334 CAD
$239 USD
View
Retailer 4
-
$334 CAD
$239 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$427 CAD
£241 GBP
View
B+
Retailer 6
-
$583 CAD
$417 USD
View
A
Retailer 7
-
$602 CAD
£340 GBP
View
A
Retailer 8
-
$623 CAD
€425 EUR
View
A
Retailer 9
-
$704 CAD
$504 USD
View
B+
Retailer 10
-
$792 CAD
$567 USD
View
B+
Retailer 11
-
$1,071 CAD
$767 USD
View
B
Retailer 12
-
$1,076 CAD
$770 USD
View
B
Retailer 13
-
$1,411 CAD
$1,010 USD
View
B
Retailer 14
-
$1,559 CAD
£879 GBP
View
Most Expensive
B
Brilliant Earth
13299720A · Oct 31
$1,774 CAD
$1,270 USD
View
14 more retailers have this diamond
Prices start from $268 CADSave up to $1,506 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 Princess
$268 CAD