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Oval|Natural|GIA

0.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 1493017308

Certificate GIA 1493017308

Diamond specifications and retailer prices

From $1,187 CAD
$848 USD
As of October 29, 2026
Save $1,431 CAD (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,467 CAD at NZ Jewellers · As of October 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1493017308. Listed at 20 retailers as of October 29, 2026, with a 121% 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1493017308
Dimensions6.36 × 4.56 × 2.86 mm
L/W Ratio1.39
Culet sizeNone
Key to symbols
Crystal
Top View
6.36 mm4.56 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1493017308
Side View
Table 62.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.8%

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: Oct 29
Current: $3,467 CAD|Low: $1,187 CAD|High: $3,520 CAD|Avg: $1,713 CAD|-1.5%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 30, 2026
Retailer 9$1,187 CAD
Retailer 16$1,190 CAD
Retailer 8$1,264 CAD
Retailer 5$1,288 CAD
Retailer 11$1,288 CAD
Retailer 6$1,303 CAD
Retailer 17$1,338 CAD
Retailer 7$1,428 CAD
Retailer 4$1,486 CAD
Retailer 18$1,505 CAD
Retailer 3$1,568 CAD
Retailer 19$1,568 CAD
Retailer 20$1,624 CAD
Retailer 2$1,667 CAD
Retailer 10$1,874 CAD
Retailer 14$1,899 CAD
Retailer 12$1,915 CAD
Retailer 15$2,189 CAD
Retailer 13$2,618 CAD
NZ Jewellers$3,467 CAD

39 data points across 20 retailers

20 retailers$1,187 CAD to $2,618 CAD

B+
Cheapest Retailer
-
$1,187 CAD
$848 USD
Final sale: no returns
Retailer 2
-
$1,190 CAD
$850 USD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$1,264 CAD
$903 USD
View
B+
Retailer 4
-
$1,288 CAD
$920 USD
View
B+
Retailer 5
-
$1,288 CAD
$920 USD
View
B+
Retailer 6
-
$1,303 CAD
$931 USD
View
B+
Retailer 7
-
$1,338 CAD
$956 USD
View
B+
Retailer 8
-
$1,428 CAD
$1,020 USD
View
B+
Retailer 9
-
$1,486 CAD
$1,062 USD
View
B+
Retailer 10
-
$1,505 CAD
$1,075 USD
View
B+
Retailer 11
-
$1,568 CAD
$1,120 USD
View
B+
Retailer 12
-
$1,568 CAD
$1,120 USD
View
B+
Retailer 13
-
$1,624 CAD
$1,160 USD
View
B+
Retailer 14
-
$1,667 CAD
£938 GBP
View
B
Retailer 15
-
$1,874 CAD
$1,339 USD
View
B
Retailer 16
-
$1,899 CAD
€1,292 EUR
View
Retailer 17
-
$1,915 CAD
A$2,105 AUD
View
Price last confirmed 25 days ago
B
Retailer 18
-
$2,189 CAD
ZAR 25,267 ZAR
View
B
Retailer 19
-
$2,618 CAD
£1,473 GBP
View
Most Expensive
NZ Jewellers
3360d27d-0a55-485c-bf6c-69e6653dbffb · Oct 30
$3,467 CAD
$2,477 USD
View
Price under review
19 more retailers have this diamond
Prices start from $1,187 CADSave up to $1,431 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
$1,187 CAD