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Oval|Natural|IGI

0.51ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 815673855

Shape and cutting style on the report: Oval brilliant

Certificate IGI 815673855

Diamond specifications and retailer prices

From $456 CAD
As of November 5, 2026
Save $1,896 CAD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,352 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815673855. Listed at 14 retailers as of November 5, 2026, with prices from $456 to $2,352, a $1,896 spread on the same certified stone. NZ Jewellers lists it at $2,352. 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

0.51
Carat
K
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle30.7°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 815673855
Dimensions6.30 × 4.62 × 2.77 mm
L/W Ratio1.36
Girdle conditionFaceted
Top View
6.30 mm4.62 mm0.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 815673855
Side View
Table 60.0%Crown 30.7°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,352 CAD|Low: $456 CAD|High: $2,352 CAD|Avg: $873 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 7$456 CAD
Retailer 13$613 CAD
Retailer 11$661 CAD
Retailer 12$661 CAD
Retailer 4$703 CAD
Retailer 3$708 CAD
Retailer 2$748 CAD
Retailer 8$783 CAD
Retailer 5$851 CAD
Retailer 9$951 CAD
Retailer 6$1,001 CAD
Retailer 10$1,414 CAD
NZ Jewellers$2,352 CAD

26 data points across 13 retailers

14 retailers$456 CAD to $2,352 CAD

A
Cheapest Retailer
-
$456 CAD
B+
Retailer 2
-
$613 CAD
View
B+
Retailer 3
-
$661 CAD
View
Retailer 4
-
$661 CAD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$703 CAD
View
B+
Retailer 6
-
$708 CAD
View
B+
Retailer 7
-
$748 CAD
View
B+
Retailer 8
-
$783 CAD
View
B+
Retailer 9
-
$798 CAD
View
B
Retailer 10
-
$851 CAD
View
B
Retailer 11
-
$951 CAD
View
B
Retailer 12
-
$1,001 CAD
View
B
Retailer 13
-
$1,414 CAD
View
Most Expensive
C
NZ Jewellers
f006e734-a583-408a-b002-81a75b2f699f · Nov 5
$2,352 CAD
$1,672 USD
View
13 more retailers have this diamond
Prices start from $456 CADSave up to $1,896 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
0.51ct Oval
$456 CAD