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Oval|Natural|GIA

0.51ct D SI2 Oval Natural Diamond

GD • D/SI2 • GIA 2507889766

Certificate GIA 2507889766

Diamond specifications and retailer prices

From $928 CAD
As of November 6, 2026
Save $2,260 CAD (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,189 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 D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2507889766. Listed at 11 retailers as of November 5, 2026, with prices from $928 to $3,189, a $2,260 spread on the same certified stone. NZ Jewellers lists it at $3,189. 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
D
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2507889766
Dimensions6.36 × 4.52 × 2.75 mm
L/W Ratio1.41
Top View
6.36 mm4.52 mm0.51 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2507889766
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.0%

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 6
Current: $3,189 CAD|Low: $782 CAD|High: $3,311 CAD|Avg: $1,590 CAD|-3.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2$928 CAD
Retailer 5$1,017 CAD
Retailer 7$1,056 CAD
Retailer 6$1,096 CAD
Retailer 4$1,162 CAD
Retailer 9$1,228 CAD
Retailer 3$1,422 CAD
Retailer 8$1,930 CAD
NZ Jewellers$3,189 CAD

44 data points across 9 retailers

11 retailers$928 CAD to $3,189 CAD

A
Cheapest Retailer
-
$928 CAD
Final sale: no returns
B+
Retailer 2
-
$1,017 CAD
View
B+
Retailer 3
-
$1,056 CAD
View
B+
Retailer 4
-
$1,073 CAD
View
B+
Retailer 5
-
$1,096 CAD
View
B+
Retailer 6
-
$1,162 CAD
View
B
Retailer 7
-
$1,228 CAD
View
B
Retailer 8
-
$1,304 CAD
View
B
Retailer 9
-
$1,422 CAD
View
B
Retailer 10
-
$1,930 CAD
View
Most Expensive
C
NZ Jewellers
b0d7bd41-02c5-4079-803d-9b2a8383066d · Nov 5
$3,189 CAD
$2,267 USD
View
10 more retailers have this diamond
Prices start from $928 CADSave up to $2,260 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
$928 CAD