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Radiant|Lab Grown|IGI

1.51ct D SI1 Radiant Lab Grown Diamond

VG • D/SI1 • IGI LG12417712

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

Certificate IGI LG12417712

Diamond specifications and retailer prices

From $277 CAD
As of November 6, 2026
Save $2,269 CAD (89%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,546 CAD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG12417712 or 12417712. Listed at 9 retailers as of November 2, 2026, with prices from $277 to $2,546, a $2,269 spread on the same certified stone. Do Amore Diamonds lists it at $2,546. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
D
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle31.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12417712
Dimensions7.26 × 5.78 × 4.05 mm
L/W Ratio1.26
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by High Pressure High Tempertature (HPHT) growth process.
Top View
7.26 mm5.78 mm1.51 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12417712
Side View
Table 63.5%Crown 42.6°Girdle: STK-THKPavilion 31.8°Culet: NoneDepth 70.1%

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 6
Current: $2,546 CAD|Low: $255 CAD|High: $2,546 CAD|Avg: $1,182 CAD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3$277 CAD
Retailer 7$321 CAD
Retailer 6$596 CAD
Retailer 5$1,107 CAD
Retailer 2$1,183 CAD
Retailer 4$1,218 CAD
Retailer 8$1,463 CAD
Retailer 9$1,716 CAD
Do Amore Diamonds$2,546 CAD

18 data points across 9 retailers

9 retailers$277 CAD to $2,546 CAD

A
Cheapest Retailer
-
$277 CAD
A
Retailer 2
-
$321 CAD
View
B+
Retailer 3
-
$596 CAD
View
B
Retailer 4
-
$1,107 CAD
View
B
Retailer 5
-
$1,183 CAD
View
B
Retailer 6
-
$1,218 CAD
View
Retailer 7
-
$1,463 CAD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$1,716 CAD
View
Most Expensive
B
Do Amore Diamonds
27-F96B3FBEF · Nov 2
$2,546 CAD
$1,810 USD
View
8 more retailers have this diamond
Prices start from $277 CADSave up to $2,269 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 Radiant
$277 CAD