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Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 6495141284

Certificate GIA 6495141284

Diamond specifications and retailer prices

From $1,420 NZD
As of November 6, 2026
Save $1,687 NZD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,107 NZD 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 $1,420 to $3,107, a $1,687 spread on the same certified stone. MOH London lists it at $3,107. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,107 NZD|Low: $1,420 NZD|High: $3,150 NZD|Avg: $2,021 NZD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$1,420 NZD
Retailer 6$1,598 NZD
Retailer 7$1,685 NZD
Retailer 3$1,694 NZD
Retailer 2$2,017 NZD
Retailer 4$2,388 NZD
MOH London$3,107 NZD

45 data points across 7 retailers

18 retailers$1,420 NZD to $3,107 NZD

B+
Cheapest Retailer
-
$1,420 NZD
Final sale: no returns
B+
Retailer 2
-
$1,510 NZD
View
Retailer 3
-
$1,539 NZD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$1,539 NZD
View
B+
Retailer 5
-
$1,546 NZD
View
B+
Retailer 6
-
$1,557 NZD
View
B+
Retailer 7
-
$1,598 NZD
View
B+
Retailer 8
-
$1,685 NZD
View
B+
Retailer 9
-
$1,694 NZD
View
B+
Retailer 10
-
$1,723 NZD
View
B
Retailer 11
-
$1,775 NZD
View
B
Retailer 12
-
$1,822 NZD
View
B
Retailer 13
-
$1,822 NZD
View
B
Retailer 14
-
$1,876 NZD
View
B
Retailer 15
-
$2,017 NZD
View
B
Retailer 16
-
$2,388 NZD
View
Most Expensive
B
MOH London
AAF872F4E · Nov 4
$3,107 NZD
£1,356 GBP
View
16 more retailers have this diamond
Prices start from $1,420 NZDSave up to $1,687 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
$1,420 NZD