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Oval|Natural|GIA

0.51ct K SI2 Oval Natural Diamond

EX • K/SI2 • GIA 1549594994

Certificate GIA 1549594994

Diamond specifications and retailer prices

From $394 AUD
As of November 6, 2026
Save $868 AUD (69%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,262 AUD at MOH London · As of November 4, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1549594994. Listed at 5 retailers as of November 4, 2026, with prices from $394 to $1,262, a $868 spread on the same certified stone. MOH London lists it at $1,262. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1549594994
Dimensions6.33 × 4.56 × 2.71 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
6.33 mm4.56 mm0.51 ctK / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1549594994
Side View
Table 59.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 59.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $1,262 AUD|Low: $394 AUD|High: $1,270 AUD|Avg: $703 AUD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$394 AUD
Retailer 3$704 AUD
Retailer 4$841 AUD
MOH London$1,262 AUD

30 data points across 4 retailers

5 retailers$394 AUD to $1,262 AUD

A
Cheapest Retailer
-
$394 AUD
Retailer 2
-
$575 AUD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$704 AUD
View
B+
Retailer 4
-
$841 AUD
View
Most Expensive
B
MOH London
911ED6DA0 · Nov 4
$1,262 AUD
£683 GBP
View
4 more retailers have this diamond
Prices start from $394 AUDSave up to $868 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.

A
0.51ct Oval
$394 AUD