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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 $695 NZD
As of November 1, 2026
Save $2,260 NZD (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,955 NZD 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 $695 to $2,955, a $2,260 spread on the same certified stone. NZ Jewellers lists it at $2,955. 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: $2,955 NZD|Low: $693 NZD|High: $2,955 NZD|Avg: $1,260 NZD
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$695 NZD
Retailer 3$868 NZD
Retailer 10$942 NZD
Retailer 12$965 NZD
Retailer 8$1,016 NZD
Retailer 9$1,016 NZD
Retailer 11$1,088 NZD
Retailer 4$1,138 NZD
Retailer 5$1,169 NZD
Retailer 2$1,398 NZD
Retailer 6$2,176 NZD
NZ Jewellers$2,955 NZD

39 data points across 12 retailers

14 retailers$695 NZD to $2,955 NZD

A
Cheapest Retailer
-
$695 NZD
A
Retailer 2
-
$768 NZD
View
A
Retailer 3
-
$868 NZD
View
Final sale: no returns
A
Retailer 4
-
$942 NZD
View
A
Retailer 5
-
$965 NZD
View
A
Retailer 6
-
$1,016 NZD
View
Retailer 7
-
$1,016 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,088 NZD
View
B+
Retailer 9
-
$1,169 NZD
View
B+
Retailer 10
-
$1,194 NZD
View
B+
Retailer 11
-
$1,266 NZD
View
B+
Retailer 12
-
$1,398 NZD
View
B
Retailer 13
-
$2,176 NZD
View
Most Expensive
B
NZ Jewellers
d4aaebf6-6ba7-45ed-bc08-bb071ebcd627 · Nov 5
$2,955 NZD
$1,638 USD
View
13 more retailers have this diamond
Prices start from $695 NZDSave up to $2,260 NZD

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
$695 NZD