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Radiant|Lab Grown|IGI

1.71ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG662422012

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG662422012

Diamond specifications and retailer prices

From $772 CAD
$553 USD
As of November 1, 2026
Save $305 CAD (28%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,078 CAD at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 1.71ct lab-grown radiant diamond

This 1.71ct lab-grown radiant 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 LG662422012 or 662422012. Listed at 2 retailers as of October 31, 2026, with prices from $772 to $1,078, a $305 spread on the same certified stone. Diamond Quarter lists it at $1,078. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.2°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662422012
Dimensions8.15 × 5.91 × 4.04 mm
L/W Ratio1.38
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.15 mm5.91 mm1.71 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662422012
Side View
Table 69.0%Crown 43.2°Girdle: MediumPavilion 36.5°Culet: NoneDepth 68.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $772 CAD|Low: $756 CAD|High: $1,136 CAD|Avg: $884 CAD|-32.0%
September 23, 2026
Retailer 1$772 CAD

4 data points across 1 retailer

2 retailers$772 CAD to $1,078 CAD

A
Cheapest Retailer
-
$772 CAD
$553 USD
Most Expensive
B
Diamond Quarter
1.71SI1FLG128033N · Oct 31
$1,078 CAD
£608 GBP
View
1 more retailer has this diamond
Prices start from $772 CADSave up to $305 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 Radiant
$772 CAD