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Radiant|Natural|IGI

1.51ct K SI1 Radiant Natural Diamond

VG • K/SI1 • IGI 805628261

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

Certificate IGI 805628261

Diamond specifications and retailer prices

From $3,806 CAD
As of November 6, 2026
Save $4,116 CAD (52%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,922 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 805628261. Listed at 12 retailers as of November 5, 2026, with prices from $3,806 to $7,922, a $4,116 spread on the same certified stone. NZ Jewellers lists it at $7,922. 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
K
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle30.1°
OriginNatural
Grading LabIGI
CertificateIGI 805628261
Dimensions7.88 × 5.52 × 3.83 mm
L/W Ratio1.43
Top View
7.88 mm5.52 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 805628261
Side View
Table 69.0%Crown 37.2°Girdle: STK-THKPavilion 30.1°CuletDepth 69.4%

Caratlytics Score

How it works →
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: $7,922 CAD|Low: $3,806 CAD|High: $7,922 CAD|Avg: $5,232 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3$3,806 CAD
Retailer 2$4,375 CAD
Retailer 4$4,411 CAD
Retailer 8$4,548 CAD
Retailer 10$4,722 CAD
Retailer 6$5,247 CAD
Retailer 5$5,541 CAD
Retailer 7$5,550 CAD
Retailer 9$7,584 CAD
NZ Jewellers$7,922 CAD

40 data points across 10 retailers

12 retailers$3,806 CAD to $7,922 CAD

A
Cheapest Retailer
-
$3,806 CAD
B+
Retailer 2
-
$4,375 CAD
View
B+
Retailer 3
-
$4,411 CAD
View
B+
Retailer 4
-
$4,536 CAD
View
B+
Retailer 5
-
$4,548 CAD
View
B+
Retailer 6
-
$4,722 CAD
View
B+
Retailer 7
-
$4,749 CAD
View
B+
Retailer 8
-
$5,247 CAD
View
B+
Retailer 9
-
$5,541 CAD
View
B+
Retailer 10
-
$5,550 CAD
View
B
Retailer 11
-
$7,584 CAD
View
Most Expensive
B
NZ Jewellers
d03f0501-cf4a-4061-9fb1-4c34e4e16201 · Nov 5
$7,922 CAD
$5,632 USD
View
11 more retailers have this diamond
Prices start from $3,806 CADSave up to $4,116 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
$3,806 CAD