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Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

GD • F/SI2 • GIA 2536781518

Certificate GIA 2536781518

Diamond specifications and retailer prices

From $899 AUD
As of November 6, 2026
Save $2,160 AUD (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,059 AUD at NZ Jewellers · As of November 5, 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 2536781518. Listed at 13 retailers as of November 5, 2026, with prices from $899 to $3,059, a $2,160 spread on the same certified stone. NZ Jewellers lists it at $3,059. 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 2536781518
Dimensions6.51 × 4.65 × 2.67 mm
L/W Ratio1.40
Top View
6.51 mm4.65 mm0.51 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2536781518
Side View
Table 63.0%CrownGirdlePavilionCulet: NoneDepth 57.4%

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: $3,059 AUD|Low: $899 AUD|High: $3,059 AUD|Avg: $1,364 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$899 AUD
Retailer 7$949 AUD
Retailer 9$975 AUD
Retailer 10$975 AUD
Retailer 8$1,013 AUD
Retailer 11$1,126 AUD
Retailer 2$1,158 AUD
Retailer 4$1,183 AUD
Retailer 5$1,388 AUD
Retailer 6$2,253 AUD
NZ Jewellers$3,059 AUD

42 data points across 11 retailers

13 retailers$899 AUD to $3,059 AUD

B+
Cheapest Retailer
-
$899 AUD
Final sale: no returns
B+
Retailer 2
-
$949 AUD
View
B+
Retailer 3
-
$975 AUD
View
Retailer 4
-
$975 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,013 AUD
View
B
Retailer 6
-
$1,126 AUD
View
B+
Retailer 7
-
$1,158 AUD
View
B
Retailer 8
-
$1,164 AUD
View
B
Retailer 9
-
$1,167 AUD
View
B
Retailer 10
-
$1,183 AUD
View
B
Retailer 11
-
$1,388 AUD
View
B
Retailer 12
-
$2,253 AUD
View
Most Expensive
C
NZ Jewellers
25b15ec1-5bc2-4963-9c68-84a4af09dab0 · Nov 5
$3,059 AUD
$2,102 USD
View
12 more retailers have this diamond
Prices start from $899 AUDSave up to $2,160 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
$899 AUD