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Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

GD • F/SI2 • GIA 5503010125

Certificate GIA 5503010125

Diamond specifications and retailer prices

From $950 AUD
As of November 6, 2026
Save $1,426 AUD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,228 AUD at NZ Jewellers · As of September 29, 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 F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5503010125. Listed at 14 retailers as of November 2, 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
F
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5503010125
Dimensions6.78 × 4.46 × 2.70 mm
L/W Ratio1.52
Top View
6.78 mm4.46 mm0.51 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5503010125
Side View
Table 59.0%CrownGirdle: THN-THKPavilionCulet: 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: Nov 6
Current: $1,223 AUD|Low: $950 AUD|High: $2,406 AUD|Avg: $1,359 AUD|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$950 AUD
Retailer 7$968 AUD
Retailer 5$1,029 AUD
Retailer 1$1,223 AUD
Retailer 2$1,252 AUD
Retailer 4$1,463 AUD
Retailer 3$2,377 AUD

41 data points across 7 retailers

14 retailers$950 AUD to $2,377 AUD

B+
Cheapest Retailer
-
$950 AUD
Final sale: no returns
B+
Retailer 2
-
$968 AUD
View
Retailer 3
-
$1,029 AUD
View
Price last confirmed 29 days ago
Retailer 4
-
$1,029 AUD
View
Price last confirmed 29 days ago
Retailer 5
-
$1,029 AUD
View
Price last confirmed 8 days ago
Retailer 6
-
$1,070 AUD
View
Price last confirmed 38 days ago
Retailer 7
-
$1,188 AUD
View
Price last confirmed 38 days ago
B
Retailer 8
-
$1,208 AUD
View
B
Retailer 9
-
$1,221 AUD
View
B+
Retailer 10
-
$1,223 AUD
View
B
Retailer 11
-
$1,252 AUD
View
B
Retailer 12
-
$1,463 AUD
View
B
Retailer 13
-
$2,377 AUD
View
Most Expensive
NZ Jewellers
927cccfb-e227-439a-bcc2-c313e1d51fe9 · Sep 29
$3,228 AUD
$2,218 USD
View
Price under review
13 more retailers have this diamond
Prices start from $950 AUDSave up to $1,426 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
$950 AUD