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Oval|Natural|GIA

0.51ct F SI1 Oval Natural Diamond

GD • F/SI1 • GIA 2557293700

Certificate GIA 2557293700

Diamond specifications and retailer prices

From $952 AUD
As of November 6, 2026
Save $1,431 AUD (60%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,235 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 F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2557293700. Listed at 15 retailers as of November 1, 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557293700
Dimensions7.10 × 4.35 × 2.64 mm
L/W Ratio1.63
Key to symbols
Cloud, Feather, Crystal
Top View
7.10 mm4.35 mm0.51 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557293700
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 60.8%

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: Nov 6
Current: $1,457 AUD|Low: $872 AUD|High: $2,412 AUD|Avg: $1,308 AUD|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8$952 AUD
Retailer 10$987 AUD
Retailer 11$993 AUD
Retailer 3$1,032 AUD
Retailer 4$1,032 AUD
Retailer 2$1,191 AUD
Retailer 5$1,255 AUD
Retailer 12$1,295 AUD
Retailer 1$1,457 AUD
Retailer 9$1,551 AUD
Retailer 6$1,592 AUD
Retailer 7$2,382 AUD

42 data points across 12 retailers

15 retailers$952 AUD to $2,382 AUD

B+
Cheapest Retailer
-
$952 AUD
Final sale: no returns
B+
Retailer 2
-
$987 AUD
View
Retailer 3
-
$1,032 AUD
View
Price last confirmed 30 days ago
Retailer 4
-
$1,032 AUD
View
Price last confirmed 30 days ago
Retailer 5
-
$1,071 AUD
View
Price last confirmed 39 days ago
Retailer 6
-
$1,191 AUD
View
Price last confirmed 39 days ago
B
Retailer 7
-
$1,223 AUD
View
B
Retailer 8
-
$1,224 AUD
View
B
Retailer 9
-
$1,255 AUD
View
B
Retailer 10
-
$1,295 AUD
View
B
Retailer 11
-
$1,457 AUD
View
Retailer 12
-
$1,551 AUD
View
Price last confirmed 34 days ago
B
Retailer 13
-
$1,592 AUD
View
B
Retailer 14
-
$2,382 AUD
View
Most Expensive
NZ Jewellers
71cc3dde-595c-41e9-a2c4-aafdcb9acb2c · Sep 30
$3,235 AUD
$2,223 USD
View
Price under review
14 more retailers have this diamond
Prices start from $952 AUDSave up to $1,431 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
$952 AUD