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Oval|Natural|GIA

0.51ct J SI1 Oval Natural Diamond

GD • J/SI1 • GIA 2498422008

Certificate GIA 2498422008

Diamond specifications and retailer prices

From $615 SGD
As of November 6, 2026
Save $923 SGD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,090 SGD 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2498422008. Listed at 14 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. 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
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2498422008
Dimensions6.53 × 4.60 × 2.80 mm
L/W Ratio1.42
Top View
6.53 mm4.60 mm0.51 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2498422008
Side View
Table 55.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 61.0%

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 6
Current: $827 SGD|Low: $615 SGD|High: $1,557 SGD|Avg: $974 SGD|+5.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 5$615 SGD
Retailer 7$741 SGD
Retailer 1$827 SGD
Retailer 8$923 SGD
Retailer 4$996 SGD
Retailer 6$1,002 SGD
Retailer 2$1,033 SGD
Retailer 3$1,538 SGD

42 data points across 8 retailers

14 retailers$615 SGD to $1,538 SGD

B+
Cheapest Retailer
-
$615 SGD
Final sale: no returns
Retailer 2
-
$666 SGD
View
Price last confirmed 29 days ago
Retailer 3
-
$718 SGD
View
Price last confirmed 29 days ago
Retailer 4
-
$718 SGD
View
Price last confirmed 38 days ago
B
Retailer 5
-
$754 SGD
View
Retailer 6
-
$769 SGD
View
Price last confirmed 38 days ago
B
Retailer 7
-
$827 SGD
View
B
Retailer 8
-
$834 SGD
View
B
Retailer 9
-
$923 SGD
View
B
Retailer 10
-
$996 SGD
View
Retailer 11
-
$1,002 SGD
View
Price last confirmed 33 days ago
B
Retailer 12
-
$1,033 SGD
View
C
Retailer 13
-
$1,538 SGD
View
Most Expensive
NZ Jewellers
827003b3-0b82-4dbb-bc77-e102f710123f · Sep 30
$2,090 SGD
$1,631 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $615 SGDSave up to $923 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
$615 SGD