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Oval|Natural|GIA

0.51ct G SI1 Oval Natural Diamond

VG • G/SI1 • GIA 2566313689

Certificate GIA 2566313689

Diamond specifications and retailer prices

From $781 NZD
As of November 6, 2026
Save $2,540 NZD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,321 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2566313689. Listed at 18 retailers as of November 5, 2026, with prices from $781 to $3,321, a $2,540 spread on the same certified stone. NZ Jewellers lists it at $3,321. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2566313689
Dimensions6.87 × 4.31 × 2.68 mm
L/W Ratio1.59
Girdle conditionFaceted
Culet sizeNone
Top View
6.87 mm4.31 mm0.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2566313689
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NDepth 62.1%

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: $781 NZD|Low: $781 NZD|High: $2,471 NZD|Avg: $1,269 NZD|-2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$781 NZD
Retailer 8$976 NZD
Retailer 7$1,039 NZD
Retailer 4$1,050 NZD
Retailer 2$1,113 NZD
Retailer 3$1,299 NZD
Retailer 6$1,566 NZD
Retailer 5$2,441 NZD

32 data points across 8 retailers

18 retailers$781 NZD to $3,321 NZD

A
Cheapest Retailer
-
$781 NZD
A
Retailer 2
-
$900 NZD
View
A
Retailer 3
-
$976 NZD
View
Final sale: no returns
B+
Retailer 4
-
$1,037 NZD
View
Retailer 5
-
$1,039 NZD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$1,050 NZD
View
B+
Retailer 7
-
$1,059 NZD
View
B+
Retailer 8
-
$1,109 NZD
View
B+
Retailer 9
-
$1,113 NZD
View
B+
Retailer 10
-
$1,140 NZD
View
B+
Retailer 11
-
$1,221 NZD
View
B+
Retailer 12
-
$1,299 NZD
View
B
Retailer 13
-
$1,479 NZD
View
B
Retailer 14
-
$1,479 NZD
View
B
Retailer 15
-
$1,566 NZD
View
B
Retailer 16
-
$2,441 NZD
View
C
Retailer 17
-
$3,050 NZD
View
Most Expensive
C
NZ Jewellers
59098bd1-ac53-455e-95e0-8075edd40a52 · Nov 5
$3,321 NZD
$1,841 USD
View
17 more retailers have this diamond
Prices start from $781 NZDSave up to $2,540 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
$781 NZD