CaratHunter
Plans
Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 2564708245

Certificate GIA 2564708245

Diamond specifications and retailer prices

From $585 AUD
As of November 6, 2026
Save $2,067 AUD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,652 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 2564708245. Listed at 16 retailers as of November 5, 2026, with prices from $585 to $2,652, a $2,067 spread on the same certified stone. NZ Jewellers lists it at $2,652. 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
PolishVery Good
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2564708245
Dimensions6.52 × 4.49 × 2.77 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
6.52 mm4.49 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2564708245
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.8%

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: $2,652 AUD|Low: $585 AUD|High: $2,778 AUD|Avg: $1,088 AUD|-4.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 15$585 AUD
Retailer 9$619 AUD
Retailer 14$825 AUD
Retailer 2$841 AUD
Retailer 3$844 AUD
Retailer 13$846 AUD
Retailer 16$911 AUD
Retailer 7$940 AUD
Retailer 4$975 AUD
Retailer 8$1,004 AUD
Retailer 10$1,004 AUD
Retailer 12$1,028 AUD
Retailer 6$1,128 AUD
Retailer 11$1,135 AUD
Retailer 5$1,981 AUD
NZ Jewellers$2,652 AUD

12 data points across 16 retailers

16 retailers$585 AUD to $2,652 AUD

A
Cheapest Retailer
-
$585 AUD
Final sale: no returns
A
Retailer 2
-
$619 AUD
View
A
Retailer 3
-
$825 AUD
View
A
Retailer 4
-
$841 AUD
View
A
Retailer 5
-
$844 AUD
View
A
Retailer 6
-
$846 AUD
View
A
Retailer 7
-
$911 AUD
View
Retailer 8
-
$940 AUD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$975 AUD
View
Retailer 10
-
$1,004 AUD
View
Price last confirmed 9 days ago
A
Retailer 11
-
$1,004 AUD
View
A
Retailer 12
-
$1,028 AUD
View
B+
Retailer 13
-
$1,128 AUD
View
B+
Retailer 14
-
$1,135 AUD
View
B
Retailer 15
-
$1,981 AUD
View
Most Expensive
B
NZ Jewellers
eebda3ae-acc0-4855-b36f-1bf6872e3b09 · Nov 5
$2,652 AUD
$1,822 USD
View
15 more retailers have this diamond
Prices start from $585 AUDSave up to $2,067 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
$585 AUD