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Oval|Natural|GIA

0.51ct K SI2 Oval Natural Diamond

VG • K/SI2 • GIA 2376441621

Certificate GIA 2376441621

Diamond specifications and retailer prices

From $873 NZD
As of November 5, 2026
Save $1,142 NZD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,346 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 2376441621. Listed at 12 retailers as of November 1, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2376441621
Dimensions6.53 × 4.36 × 2.76 mm
L/W Ratio1.50
Top View
6.53 mm4.36 mm0.51 ctK / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2376441621
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.3%

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 5
Current: $3,346 NZD|Low: $873 NZD|High: $3,346 NZD|Avg: $1,183 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
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 12$873 NZD
Retailer 5$878 NZD
Retailer 9$940 NZD
Retailer 14$940 NZD
Retailer 6$963 NZD
Retailer 4$992 NZD
Retailer 13$1,007 NZD
Retailer 2$1,035 NZD
Retailer 8$1,072 NZD
Retailer 3$1,100 NZD
Retailer 15$1,109 NZD
Retailer 10$1,311 NZD
Retailer 7$1,326 NZD
Retailer 11$2,015 NZD
NZ Jewellers$3,346 NZD

30 data points across 15 retailers

12 retailers$873 NZD to $2,015 NZD

A
Cheapest Retailer
-
$873 NZD
B+
Retailer 2
-
$940 NZD
View
Retailer 3
-
$940 NZD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$992 NZD
View
B+
Retailer 5
-
$1,007 NZD
View
B+
Retailer 6
-
$1,035 NZD
View
B
Retailer 7
-
$1,072 NZD
View
B
Retailer 8
-
$1,100 NZD
View
B
Retailer 9
-
$1,109 NZD
View
B
Retailer 10
-
$1,311 NZD
View
B
Retailer 11
-
$2,015 NZD
View
Most Expensive
NZ Jewellers
3b063a02-d0ae-491e-bb58-4125d27533c2 · Nov 5
$3,346 NZD
$1,855 USD
View
Price under review
11 more retailers have this diamond
Prices start from $873 NZDSave up to $1,142 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
$873 NZD