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Princess|Lab Grown|IGI

15.51ct G VS1 Princess Lab Grown Diamond

EX • G/VS1 • IGI LG838639168

Shape and cutting style on the report: Princess cut

Certificate IGI LG838639168

Diamond specifications and retailer prices

From $4,716 CAD
$3,375 USD
As of November 1, 2026
Save $13,939 CAD (75%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $18,655 CAD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 15.51ct lab-grown princess diamond

This 15.51ct lab-grown princess sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG838639168 or 838639168. Listed at 3 retailers as of November 1, 2026, with prices from $4,716 to $18,655, a $13,939 spread on the same certified stone. Brilliant Earth lists it at $18,655. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

15.51
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.6°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838639168
Dimensions13.94 × 13.66 × 9.39 mm
L/W Ratio1.02
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.94 mm13.66 mm15.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838639168
Side View
Table 70.0%Crown 44.6°Girdle: MediumPavilion 38.2°Culet: NoneDepth 68.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $18,655 CAD|Low: $4,716 CAD|High: $19,228 CAD|Avg: $11,406 CAD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$4,716 CAD
Retailer 2$6,646 CAD
Brilliant Earth$18,655 CAD

32 data points across 3 retailers

3 retailers$4,716 CAD to $18,655 CAD

A
Cheapest Retailer
-
$4,716 CAD
$3,375 USD
Final sale: no returns
A
Retailer 2
-
$6,646 CAD
£3,745 GBP
View
Most Expensive
B
Brilliant Earth
21542489A · Nov 2
$18,655 CAD
$13,350 USD
View
2 more retailers have this diamond
Prices start from $4,716 CADSave up to $13,939 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
15.51ct Princess
$4,716 CAD