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Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 6565307176

Certificate GIA 6565307176

Diamond specifications and retailer prices

From $624 AUD
As of November 6, 2026
Save $1,962 AUD (76%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,586 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565307176. Listed at 12 retailers as of November 5, 2026, with prices from $624 to $2,586, a $1,962 spread on the same certified stone. NZ Jewellers lists it at $2,586. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6565307176
Dimensions6.29 × 4.49 × 2.74 mm
L/W Ratio1.40
Girdle conditionMedium to Thick
Key to symbols
Twinning Wisp
Top View
6.29 mm4.49 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565307176
Side View
Table 60.0%CrownGirdle: UND-UNDPavilionCulet: NoneDepth 61.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $624 AUD|Low: $624 AUD|High: $1,927 AUD|Avg: $1,046 AUD|-2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$624 AUD
Retailer 8$760 AUD
Retailer 7$888 AUD
Retailer 5$897 AUD
Retailer 2$979 AUD
Retailer 3$1,010 AUD
Retailer 6$1,224 AUD
Retailer 4$1,901 AUD

29 data points across 8 retailers

12 retailers$624 AUD to $2,586 AUD

A
Cheapest Retailer
-
$624 AUD
A
Retailer 2
-
$760 AUD
View
Final sale: no returns
A
Retailer 3
-
$825 AUD
View
A
Retailer 4
-
$888 AUD
View
A
Retailer 5
-
$897 AUD
View
A
Retailer 6
-
$952 AUD
View
A
Retailer 7
-
$979 AUD
View
B+
Retailer 8
-
$1,010 AUD
View
B+
Retailer 9
-
$1,016 AUD
View
B+
Retailer 10
-
$1,224 AUD
View
B
Retailer 11
-
$1,901 AUD
View
Most Expensive
B
NZ Jewellers
5e00d38b-622c-43f2-9f9e-ecd630ce6715 · Nov 5
$2,586 AUD
$1,777 USD
View
11 more retailers have this diamond
Prices start from $624 AUDSave up to $1,962 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.

A
0.51ct Oval
$624 AUD