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Oval|Natural|GIA

0.51ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 5533910368

Certificate GIA 5533910368

Diamond specifications and retailer prices

From $892 SGD
$698 USD
As of October 29, 2026
Save $915 SGD (51%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,090 SGD 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5533910368. Listed at 15 retailers as of October 26, 2026, with a 103% 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.42°
Pavilion angle39.04°
OriginNatural
Grading LabGIA
CertificateGIA 5533910368
Dimensions6.48 × 4.44 × 2.69 mm
L/W Ratio1.46
Top View
6.48 mm4.44 mm0.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5533910368
Side View
Table 57.0%Crown 36.42°Girdle: STK-THKPavilion 39.04°Culet: NoneDepth 60.6%

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: Oct 29
Current: $3,090 SGD|Low: $892 SGD|High: $3,090 SGD|Avg: $1,375 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$892 SGD
Retailer 8$892 SGD
Retailer 5$927 SGD
Retailer 7$1,030 SGD
Retailer 10$1,133 SGD
Retailer 3$1,174 SGD
Retailer 2$1,278 SGD
Retailer 9$1,482 SGD
Retailer 4$1,807 SGD
NZ Jewellers$3,090 SGD

42 data points across 10 retailers

15 retailers$892 SGD to $1,807 SGD

B+
Cheapest Retailer
-
$892 SGD
$698 USD
B+
Retailer 2
-
$892 SGD
$698 USD
View
B+
Retailer 3
-
$911 SGD
$713 USD
View
B+
Retailer 4
-
$927 SGD
$725 USD
View
B
Retailer 5
-
$1,030 SGD
$806 USD
View
B+
Retailer 6
-
$1,098 SGD
$859 USD
View
B
Retailer 7
-
$1,125 SGD
$880 USD
View
B
Retailer 8
-
$1,125 SGD
$880 USD
View
B
Retailer 9
-
$1,133 SGD
$886 USD
View
B
Retailer 10
-
$1,163 SGD
$910 USD
View
B
Retailer 11
-
$1,174 SGD
£723 GBP
View
B
Retailer 12
-
$1,278 SGD
€952 EUR
View
B
Retailer 13
-
$1,807 SGD
£1,113 GBP
View
Retailer 14
-
$2,845 SGD
CA$3,091 CAD
View
Price under review
Most Expensive
NZ Jewellers
a946eeb6-7b30-43fe-9a47-f908a73a7f6c · Oct 30
$3,090 SGD
$2,417 USD
View
Price under review
14 more retailers have this diamond
Prices start from $892 SGDSave up to $915 SGD

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
$892 SGD