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Oval|Natural|GIA

0.51ct H SI2 Oval Natural Diamond

GD • H/SI2 • GIA 1525115355

Certificate GIA 1525115355

Diamond specifications and retailer prices

From $724 CAD
As of November 4, 2026
Save $1,089 CAD (60%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,462 CAD at NZ Jewellers · As of September 30, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1525115355. Listed at 11 retailers as of November 2, 2026, with a 150% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1525115355
Dimensions6.86 × 4.35 × 2.69 mm
L/W Ratio1.58
Key to symbols
Crystal, Feather
Top View
6.86 mm4.35 mm0.51 ctH / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1525115355
Side View
Table 54.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 61.8%

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 4
Current: $982 CAD|Low: $664 CAD|High: $1,834 CAD|Avg: $993 CAD|+5.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$724 CAD
Retailer 8$785 CAD
Retailer 10$845 CAD
Retailer 6$875 CAD
Retailer 2$882 CAD
Retailer 9$906 CAD
Retailer 1$982 CAD
Retailer 7$1,027 CAD
Retailer 4$1,165 CAD
Retailer 3$1,813 CAD

41 data points across 10 retailers

11 retailers$724 CAD to $1,813 CAD

B+
Cheapest Retailer
-
$724 CAD
Final sale: no returns
Retailer 2
-
$785 CAD
View
Price last confirmed 29 days ago
Retailer 3
-
$845 CAD
View
Price last confirmed 29 days ago
Retailer 4
-
$845 CAD
View
Price last confirmed 38 days ago
B+
Retailer 5
-
$882 CAD
View
Retailer 6
-
$906 CAD
View
Price last confirmed 38 days ago
B
Retailer 7
-
$969 CAD
View
B
Retailer 8
-
$982 CAD
View
B
Retailer 9
-
$1,165 CAD
View
C
Retailer 10
-
$1,813 CAD
View
Most Expensive
NZ Jewellers
16861eeb-55f2-43ac-b2ba-983adf7bd2fb · Sep 30
$2,462 CAD
$1,750 USD
View
Price last confirmed 37 days ago
10 more retailers have this diamond
Prices start from $724 CADSave up to $1,089 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 Oval
$724 CAD