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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 $347 SGD
As of November 6, 2026
Save $764 SGD (69%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,112 SGD 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 $347 to $1,112, a $764 spread on the same certified stone. MOH London lists it at $1,112. 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: $1,112 SGD|Low: $347 SGD|High: $1,118 SGD|Avg: $619 SGD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$347 SGD
Retailer 3$620 SGD
Retailer 4$741 SGD
MOH London$1,112 SGD

30 data points across 4 retailers

5 retailers$347 SGD to $1,112 SGD

A
Cheapest Retailer
-
$347 SGD
Retailer 2
-
$506 SGD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$620 SGD
View
B+
Retailer 4
-
$741 SGD
View
Most Expensive
B
MOH London
911ED6DA0 · Nov 4
$1,112 SGD
£683 GBP
View
4 more retailers have this diamond
Prices start from $347 SGDSave up to $764 SGD

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
$347 SGD