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Round|Lab Grown|IGI

1.51ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG12251714

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12251714

Diamond specifications and retailer prices

From $473 CAD
As of November 5, 2026
Save $2,060 CAD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,204 CAD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round 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 LG12251714 or 12251714. Listed at 20 retailers as of November 1, 2026, with a 435% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12251714
Dimensions7.34 × 7.38 × 4.60 mm
L/W Ratio1.01
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
7.34 mm7.38 mm1.51 ctF / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12251714
Side View
Table 58.0%Crown 35.5°Girdle: THN-UNDPavilion 41.6°Culet: NoneDepth 62.4%

Caratlytics Score

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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 5
Current: $4,204 CAD|Low: $473 CAD|High: $4,204 CAD|Avg: $1,386 CAD
Do Amore Diamonds
Retailer 2
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Retailer 19
Retailer 20
November 6, 2026
Retailer 4$473 CAD
Retailer 5$504 CAD
Retailer 20$550 CAD
Retailer 7$588 CAD
Retailer 19$588 CAD
Retailer 18$603 CAD
Retailer 9$803 CAD
Retailer 15$937 CAD
Retailer 14$964 CAD
Retailer 3$1,049 CAD
Retailer 13$1,156 CAD
Retailer 2$1,184 CAD
Retailer 12$1,184 CAD
Retailer 8$1,723 CAD
Retailer 10$1,856 CAD
Retailer 16$1,997 CAD
Retailer 6$2,085 CAD
Retailer 11$2,302 CAD
Retailer 17$2,533 CAD
Do Amore Diamonds$4,204 CAD

21 data points across 20 retailers

20 retailers$473 CAD to $2,533 CAD

A
Cheapest Retailer
-
$473 CAD
A
Retailer 2
-
$504 CAD
View
A
Retailer 3
-
$550 CAD
View
Retailer 4
-
$588 CAD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$588 CAD
View
B+
Retailer 6
-
$603 CAD
View
B+
Retailer 7
-
$803 CAD
View
B+
Retailer 8
-
$937 CAD
View
B+
Retailer 9
-
$964 CAD
View
B
Retailer 10
-
$1,049 CAD
View
B+
Retailer 11
-
$1,156 CAD
View
B+
Retailer 12
-
$1,184 CAD
View
B
Retailer 13
-
$1,184 CAD
View
B
Retailer 14
-
$1,723 CAD
View
B
Retailer 15
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$1,856 CAD
View
B
Retailer 16
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$1,997 CAD
View
B
Retailer 17
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$2,085 CAD
View
B
Retailer 18
-
$2,302 CAD
View
B
Retailer 19
-
$2,533 CAD
View
Most Expensive
Do Amore Diamonds
27-AE3F019FF · Nov 6
$4,204 CAD
$3,010 USD
View
Price under review
19 more retailers have this diamond
Prices start from $473 CADSave up to $2,060 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
1.51ct Round
$473 CAD