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Oval|Natural|GIA

0.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 6555499715

Certificate GIA 6555499715

Diamond specifications and retailer prices

From $769 CAD
As of November 4, 2026
Save $1,153 CAD (60%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,616 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555499715. Listed at 15 retailers as of November 4, 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. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555499715
Dimensions6.50 × 4.50 × 2.77 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
6.50 mm4.50 mm0.51 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555499715
Side View
Table 56.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.5%

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 4
Current: $1,227 CAD|Low: $769 CAD|High: $1,950 CAD|Avg: $1,203 CAD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$769 CAD
Retailer 8$921 CAD
Retailer 2$1,014 CAD
Retailer 5$1,104 CAD
Retailer 1$1,227 CAD
Retailer 7$1,255 CAD
Retailer 4$1,287 CAD
Retailer 3$1,923 CAD

46 data points across 8 retailers

15 retailers$769 CAD to $1,923 CAD

A
Cheapest Retailer
-
$769 CAD
Final sale: no returns
Retailer 2
-
$834 CAD
View
Price last confirmed 29 days ago
Retailer 3
-
$899 CAD
View
Price last confirmed 29 days ago
Retailer 4
-
$899 CAD
View
Price last confirmed 38 days ago
Retailer 5
-
$900 CAD
View
Price last confirmed 11 days ago
Retailer 6
-
$962 CAD
View
Price last confirmed 67 days ago
Retailer 7
-
$962 CAD
View
Price last confirmed 38 days ago
B+
Retailer 8
-
$1,014 CAD
View
B
Retailer 9
-
$1,104 CAD
View
B+
Retailer 10
-
$1,227 CAD
View
Retailer 11
-
$1,255 CAD
View
Price last confirmed 33 days ago
B+
Retailer 12
-
$1,287 CAD
View
B
Retailer 13
-
$1,923 CAD
View
Retailer 14
-
$2,616 CAD
View
Price last confirmed 69 days ago
Most Expensive
NZ Jewellers
14c792f6-0078-4d74-b977-0c16cc58ec11 · Sep 30
$2,616 CAD
$1,860 USD
View
Price last confirmed 37 days ago
14 more retailers have this diamond
Prices start from $769 CADSave up to $1,153 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
$769 CAD