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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 $812 AUD
As of November 5, 2026
Save $711 AUD (47%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,523 AUD 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 $812 to $1,523, a $711 spread on the same certified stone. MOH London lists it at $1,523. 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: $1,523 AUD|Low: $684 AUD|High: $1,542 AUD|Avg: $976 AUD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 5$684 AUD
Retailer 2$812 AUD
Retailer 4$882 AUD
Retailer 3$997 AUD
MOH London$1,523 AUD

38 data points across 5 retailers

5 retailers$812 AUD to $1,523 AUD

Retailer 1
-
$684 AUD
Price last confirmed 9 days ago
B+
Retailer 2
-
$812 AUD
View
B
Retailer 3
-
$882 AUD
View
B
Retailer 4
-
$997 AUD
View
Most Expensive
C
MOH London
E1D225394 · Nov 2
$1,523 AUD
£824 GBP
View
4 more retailers have this diamond
Prices start from $812 AUDSave up to $711 AUD

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
$812 AUD