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Oval|Natural|GIA

0.51ct H SI2 Oval Natural Diamond

EX • H/SI2 • GIA 2567308159

Certificate GIA 2567308159

Diamond specifications and retailer prices

From $560 AUD
As of November 1, 2026
Save $1,824 AUD (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,384 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2567308159. Listed at 14 retailers as of November 1, 2026, with prices from $560 to $2,384, a $1,824 spread on the same certified stone. NZ Jewellers lists it at $2,384. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2567308159
Dimensions6.35 × 4.46 × 2.85 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal
Top View
6.35 mm4.46 mm0.51 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2567308159
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 64.0%

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 1
Current: $2,384 AUD|Low: $559 AUD|High: $2,384 AUD|Avg: $1,017 AUD
NZ Jewellers
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 7$560 AUD
Retailer 3$700 AUD
Retailer 10$760 AUD
Retailer 12$779 AUD
Retailer 8$819 AUD
Retailer 9$819 AUD
Retailer 11$878 AUD
Retailer 4$918 AUD
Retailer 5$943 AUD
Retailer 2$1,128 AUD
Retailer 6$1,755 AUD
NZ Jewellers$2,384 AUD

39 data points across 12 retailers

14 retailers$560 AUD to $2,384 AUD

A
Cheapest Retailer
-
$560 AUD
A
Retailer 2
-
$620 AUD
View
A
Retailer 3
-
$700 AUD
View
Final sale: no returns
A
Retailer 4
-
$760 AUD
View
A
Retailer 5
-
$779 AUD
View
A
Retailer 6
-
$819 AUD
View
Retailer 7
-
$819 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$878 AUD
View
B+
Retailer 9
-
$943 AUD
View
B+
Retailer 10
-
$963 AUD
View
B+
Retailer 11
-
$1,022 AUD
View
B+
Retailer 12
-
$1,128 AUD
View
B
Retailer 13
-
$1,755 AUD
View
Most Expensive
B
NZ Jewellers
d4aaebf6-6ba7-45ed-bc08-bb071ebcd627 · Nov 5
$2,384 AUD
$1,638 USD
View
13 more retailers have this diamond
Prices start from $560 AUDSave up to $1,824 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
$560 AUD