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Oval|Natural|GIA

0.51ct K SI2 Oval Natural Diamond

GD • K/SI2 • GIA 5506016811

Certificate GIA 5506016811

Diamond specifications and retailer prices

From $1,007 NZD
As of November 5, 2026
Save $881 NZD (47%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,888 NZD at MOH London · As of November 2, 2026
View at MOH London

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 5506016811. Listed at 5 retailers as of November 2, 2026, with prices from $1,007 to $1,888, a $881 spread on the same certified stone. MOH London lists it at $1,888. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 5506016811
Dimensions6.62 × 4.55 × 2.72 mm
L/W Ratio1.45
Top View
6.62 mm4.55 mm0.51 ctK / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5506016811
Side View
Table 62.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 59.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $1,888 NZD|Low: $848 NZD|High: $1,911 NZD|Avg: $1,210 NZD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 5$848 NZD
Retailer 2$1,007 NZD
Retailer 4$1,093 NZD
Retailer 3$1,236 NZD
MOH London$1,888 NZD

38 data points across 5 retailers

5 retailers$1,007 NZD to $1,888 NZD

Retailer 1
-
$848 NZD
Price last confirmed 9 days ago
B+
Retailer 2
-
$1,007 NZD
View
B
Retailer 3
-
$1,093 NZD
View
B
Retailer 4
-
$1,236 NZD
View
Most Expensive
C
MOH London
E1D225394 · Nov 2
$1,888 NZD
£824 GBP
View
4 more retailers have this diamond
Prices start from $1,007 NZDSave up to $881 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
$1,007 NZD