Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 6565307176

Certificate GIA 6565307176

Diamond specifications and retailer prices

From $429 USD
As of November 6, 2026
Save $1,348 USD (76%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,777 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 6565307176. Listed at 12 retailers as of November 5, 2026, with prices from $429 to $1,777, a $1,348 spread on the same certified stone. NZ Jewellers lists it at $1,777. 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
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6565307176
Dimensions6.29 × 4.49 × 2.74 mm
L/W Ratio1.40
Girdle conditionMedium to Thick
Key to symbols
Twinning Wisp
Top View
6.29 mm4.49 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565307176
Side View
Table 60.0%CrownGirdle: UND-UNDPavilionCulet: NoneDepth 61.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $429 USD|Low: $429 USD|High: $1,324 USD|Avg: $718 USD|-2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$429 USD
Retailer 8$522 USD
Retailer 7$610 USD
Retailer 5$616 USD
Retailer 2$673 USD
Retailer 3$694 USD
Retailer 6$841 USD
Retailer 4$1,306 USD

29 data points across 8 retailers

12 retailers$429 USD to $1,777 USD

A
Cheapest Retailer
-
$429 USD
A
Retailer 2
-
$522 USD
View
Final sale: no returns
A
Retailer 3
-
$567 USD
View
A
Retailer 4
-
$610 USD
View
A
Retailer 5
-
$616 USD
View
A
Retailer 6
-
$654 USD
View
A
Retailer 7
-
$673 USD
View
B+
Retailer 8
-
$694 USD
View
B+
Retailer 9
-
$698 USD
View
B+
Retailer 10
-
$841 USD
View
B
Retailer 11
-
$1,306 USD
View
Most Expensive
B
NZ Jewellers
5e00d38b-622c-43f2-9f9e-ecd630ce6715 · Nov 5
$1,777 USD
View
11 more retailers have this diamond
Prices start from $429 USDSave up to $1,348 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.

A
0.51ct Oval
$429 USD