Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 6495141284

Certificate GIA 6495141284

Diamond specifications and retailer prices

From $787 USD
As of November 6, 2026
Save $935 USD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,722 USD 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6495141284. Listed at 18 retailers as of November 4, 2026, with prices from $787 to $1,722, a $935 spread on the same certified stone. MOH London lists it at $1,722. 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
F
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.3°
Pavilion angle39.11°
OriginNatural
Grading LabGIA
CertificateGIA 6495141284
Dimensions6.63 × 4.47 × 2.67 mm
L/W Ratio1.48
Top View
6.63 mm4.47 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6495141284
Side View
Table 56.0%Crown 34.3°Girdle: STK-VTKPavilion 39.11°Culet: NoneDepth 59.8%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $1,722 USD|Low: $787 USD|High: $1,746 USD|Avg: $1,120 USD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 5$787 USD
Retailer 6$886 USD
Retailer 7$934 USD
Retailer 2$939 USD
Retailer 3$1,118 USD
Retailer 4$1,324 USD
MOH London$1,722 USD

46 data points across 7 retailers

18 retailers$787 USD to $1,722 USD

B+
Cheapest Retailer
-
$787 USD
Final sale: no returns
B+
Retailer 2
-
$837 USD
View
Retailer 3
-
$853 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$853 USD
View
B+
Retailer 5
-
$857 USD
View
B+
Retailer 6
-
$863 USD
View
B+
Retailer 7
-
$886 USD
View
B+
Retailer 8
-
$934 USD
View
B+
Retailer 9
-
$939 USD
View
B+
Retailer 10
-
$955 USD
View
B
Retailer 11
-
$984 USD
View
B
Retailer 12
-
$1,010 USD
View
B
Retailer 13
-
$1,010 USD
View
B
Retailer 14
-
$1,040 USD
View
B
Retailer 15
-
$1,118 USD
View
B
Retailer 16
-
$1,324 USD
View
Most Expensive
B
MOH London
AAF872F4E · Nov 4
$1,722 USD
£1,356 GBP
View
16 more retailers have this diamond
Prices start from $787 USDSave up to $935 USD

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
$787 USD