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Oval|Natural|GIA

0.51ct H SI2 Oval Natural Diamond

GD • H/SI2 • GIA 6552015903

Certificate GIA 6552015903

Diamond specifications and retailer prices

From $1,326 NZD
As of November 6, 2026
Save $1,376 NZD (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,634 NZD at NZ Jewellers · As of September 28, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6552015903. Listed at 13 retailers as of November 4, 2026, with a 104% 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552015903
Dimensions6.14 × 4.46 × 2.87 mm
L/W Ratio1.38
Top View
6.14 mm4.46 mm0.51 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552015903
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 64.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,761 NZD|Low: $1,326 NZD|High: $2,738 NZD|Avg: $1,843 NZD|+5.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 10$1,326 NZD
Retailer 7$1,338 NZD
Retailer 2$1,360 NZD
Retailer 8$1,651 NZD
Retailer 1$1,761 NZD
Retailer 6$1,775 NZD
Retailer 4$2,089 NZD
Retailer 9$2,222 NZD
Retailer 5$2,376 NZD
Retailer 3$2,702 NZD

33 data points across 10 retailers

13 retailers$1,326 NZD to $2,702 NZD

B
Cheapest Retailer
-
$1,326 NZD
Retailer 2
-
$1,338 NZD
View
Price last confirmed 39 days ago
B
Retailer 3
-
$1,338 NZD
View
Retailer 4
-
$1,338 NZD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$1,360 NZD
View
Retailer 6
-
$1,544 NZD
View
Price last confirmed 39 days ago
B
Retailer 7
-
$1,651 NZD
View
B
Retailer 8
-
$1,761 NZD
View
B
Retailer 9
-
$1,775 NZD
View
B
Retailer 10
-
$2,089 NZD
View
C
Retailer 11
-
$2,376 NZD
View
B
Retailer 12
-
$2,702 NZD
View
Most Expensive
NZ Jewellers
40c7e2e3-e6dd-43da-b760-f57523b9bd65 · Sep 28
$4,634 NZD
$2,569 USD
View
Price under review
12 more retailers have this diamond
Prices start from $1,326 NZDSave up to $1,376 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.

B
0.51ct Oval
$1,326 NZD