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Round|Natural|IGI

0.51ct K SI2 Round Natural Diamond

VG • K/SI2 • IGI 660497001

Shape and cutting style on the report: Round brilliant

Certificate IGI 660497001

Diamond specifications and retailer prices

From $353 CAD
As of November 5, 2026
Save $1,246 CAD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,599 CAD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 660497001. Listed at 10 retailers as of November 4, 2026, with prices from $353 to $1,599, a $1,246 spread on the same certified stone. NZ Jewellers lists it at $1,599. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle34°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 660497001
Dimensions5.07 × 5.05 × 3.12 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
5.07 mm5.05 mm0.51 ctK / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 660497001
Side View
Table 58.0%Crown 34°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $370 CAD|Low: $365 CAD|High: $824 CAD|Avg: $544 CAD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 4, 2026
Retailer 4$367 CAD
Retailer 1$370 CAD
Retailer 5$476 CAD
Retailer 8$529 CAD
Retailer 7$535 CAD
Retailer 3$609 CAD
Retailer 6$641 CAD
Retailer 2$813 CAD

22 data points across 8 retailers

10 retailers$353 CAD to $1,599 CAD

B+
Cheapest Retailer
-
$353 CAD
B+
Retailer 2
-
$370 CAD
View
Retailer 3
-
$380 CAD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$394 CAD
View
B+
Retailer 5
-
$475 CAD
View
B+
Retailer 6
-
$476 CAD
View
B+
Retailer 7
-
$535 CAD
View
B+
Retailer 8
-
$609 CAD
View
B+
Retailer 9
-
$813 CAD
View
Most Expensive
C
NZ Jewellers
57bb5c08-ad8c-44d9-9924-1c4132c678f2 · Nov 4
$1,599 CAD
$1,145 USD
View
9 more retailers have this diamond
Prices start from $353 CADSave up to $1,246 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.

B+
0.51ct Round
$353 CAD