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Oval|Natural|GIA

0.51ct K SI2 Oval Natural Diamond

VG • K/SI2 • GIA 5566616416

Certificate GIA 5566616416

Diamond specifications and retailer prices

From $494 NZD
As of November 6, 2026
Save $2,157 NZD (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,652 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5566616416. Listed at 17 retailers as of November 5, 2026, with prices from $494 to $2,652, a $2,157 spread on the same certified stone. NZ Jewellers lists it at $2,652. 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
K
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5566616416
Dimensions6.45 × 4.40 × 2.80 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
6.45 mm4.40 mm0.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566616416
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.6%

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 NZD|Low: $494 NZD|High: $2,760 NZD|Avg: $970 NZD|-3.9%
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
Retailer 17
November 6, 2026
Retailer 2$494 NZD
Retailer 17$613 NZD
Retailer 13$622 NZD
Retailer 8$639 NZD
Retailer 3$673 NZD
Retailer 7$693 NZD
Retailer 5$745 NZD
Retailer 6$772 NZD
Retailer 14$801 NZD
Retailer 10$821 NZD
Retailer 11$888 NZD
Retailer 4$927 NZD
Retailer 9$931 NZD
Retailer 16$956 NZD
Retailer 15$1,261 NZD
Retailer 12$1,596 NZD
NZ Jewellers$2,652 NZD

21 data points across 17 retailers

17 retailers$494 NZD to $2,652 NZD

A
Cheapest Retailer
-
$494 NZD
A
Retailer 2
-
$613 NZD
View
A
Retailer 3
-
$622 NZD
View
A
Retailer 4
-
$639 NZD
View
Final sale: no returns
A
Retailer 5
-
$673 NZD
View
A
Retailer 6
-
$693 NZD
View
Retailer 7
-
$745 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$772 NZD
View
A
Retailer 9
-
$801 NZD
View
A
Retailer 10
-
$821 NZD
View
B+
Retailer 11
-
$888 NZD
View
B+
Retailer 12
-
$927 NZD
View
B+
Retailer 13
-
$931 NZD
View
B+
Retailer 14
-
$956 NZD
View
B
Retailer 15
-
$1,261 NZD
View
B
Retailer 16
-
$1,596 NZD
View
Most Expensive
C
NZ Jewellers
050153ca-acf3-4ec1-accd-f670c23af8a1 · Nov 5
$2,652 NZD
$1,470 USD
View
16 more retailers have this diamond
Prices start from $494 NZDSave up to $2,157 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
$494 NZD