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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 $699 AUD
As of November 6, 2026
Save $1,048 AUD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,374 AUD 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: $939 AUD|Low: $699 AUD|High: $1,768 AUD|Avg: $1,106 AUD|+5.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 5$699 AUD
Retailer 7$841 AUD
Retailer 1$939 AUD
Retailer 8$1,048 AUD
Retailer 4$1,131 AUD
Retailer 6$1,138 AUD
Retailer 2$1,173 AUD
Retailer 3$1,746 AUD

42 data points across 8 retailers

14 retailers$699 AUD to $1,746 AUD

B+
Cheapest Retailer
-
$699 AUD
Final sale: no returns
Retailer 2
-
$757 AUD
View
Price last confirmed 29 days ago
Retailer 3
-
$815 AUD
View
Price last confirmed 29 days ago
Retailer 4
-
$815 AUD
View
Price last confirmed 38 days ago
B
Retailer 5
-
$856 AUD
View
Retailer 6
-
$873 AUD
View
Price last confirmed 38 days ago
B
Retailer 7
-
$939 AUD
View
B
Retailer 8
-
$947 AUD
View
B
Retailer 9
-
$1,048 AUD
View
B
Retailer 10
-
$1,131 AUD
View
Retailer 11
-
$1,138 AUD
View
Price last confirmed 33 days ago
B
Retailer 12
-
$1,173 AUD
View
C
Retailer 13
-
$1,746 AUD
View
Most Expensive
NZ Jewellers
827003b3-0b82-4dbb-bc77-e102f710123f · Sep 30
$2,374 AUD
$1,631 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $699 AUDSave up to $1,048 AUD

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
$699 AUD