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Princess|Lab Grown|IGI

1.51ct F SI1 Princess Lab Grown Diamond

ID • F/SI1 • IGI LG727512311

Shape and cutting style on the report: Princess cut

Certificate IGI LG727512311

Diamond specifications and retailer prices

From $1,774 CAD
$1,270 USD
As of November 4, 2026
1 retailer carries this diamond
Only listing: $1,774 CAD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.51ct lab-grown princess diamond

This 1.51ct 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 LG727512311 or 727512311. Listed at a single retailer as of November 4, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.51
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.3°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727512311
Dimensions6.29 × 6.09 × 4.26 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.29 mm6.09 mm1.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG727512311
Side View
Table 71.0%Crown 47.3°Girdle: MED-STKPavilion 36.7°Culet: NoneDepth 70.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: $1,774 CAD|Low: $237 CAD|High: $2,011 CAD|Avg: $953 CAD|-11.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
April 14, 2026
Retailer 5$309 CAD
Retailer 3$328 CAD
Retailer 11$358 CAD
Retailer 6$566 CAD
Retailer 12$737 CAD
Retailer 9$754 CAD
Retailer 2$923 CAD
Retailer 10$1,054 CAD
Retailer 7$1,135 CAD
Retailer 4$1,272 CAD
Retailer 8$1,346 CAD
Brilliant Earth$1,774 CAD

49 data points across 12 retailers

1 retailer

B
Brilliant Earth
15636184A · Nov 4
$1,774 CAD
$1,270 USD
View

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.

B
1.51ct Princess
$1,774 CAD