Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

VG • F/SI2 • GIA 6502821483

Certificate GIA 6502821483

Diamond specifications and retailer prices

From $432 USD
As of November 6, 2026
Save $929 USD (68%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,851 USD at NZ Jewellers · As of October 27, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6502821483. Listed at 20 retailers as of November 4, 2026, with a 215% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
F
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6502821483
Dimensions6.25 × 4.57 × 2.89 mm
L/W Ratio1.37
Top View
6.25 mm4.57 mm0.51 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6502821483
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $432 USD|Low: $432 USD|High: $1,377 USD|Avg: $732 USD|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1$432 USD
Retailer 9$545 USD
Retailer 7$558 USD
Retailer 8$600 USD
Retailer 3$614 USD
Retailer 2$701 USD
Retailer 4$717 USD
Retailer 6$791 USD
Retailer 5$1,361 USD

38 data points across 9 retailers

20 retailers$432 USD to $1,361 USD

A
Cheapest Retailer
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$432 USD
A
Retailer 2
-
$499 USD
View
A
Retailer 3
-
$545 USD
View
Final sale: no returns
A
Retailer 4
-
$558 USD
View
Retailer 5
-
$590 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$590 USD
View
Price last confirmed 53 days ago
Retailer 7
-
$600 USD
View
Price last confirmed 9 days ago
A
Retailer 8
-
$614 USD
View
Retailer 9
-
$636 USD
View
Price last confirmed 8 days ago
Retailer 10
-
$636 USD
View
Price last confirmed 8 days ago
Retailer 11
-
$681 USD
View
Price last confirmed 53 days ago
Retailer 12
-
$681 USD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
$701 USD
View
B+
Retailer 14
-
$703 USD
View
B+
Retailer 15
-
$717 USD
View
B+
Retailer 16
-
$722 USD
View
B+
Retailer 17
-
$791 USD
View
B
Retailer 18
-
$1,361 USD
View
Retailer 19
-
$1,851 USD
View
Price last confirmed 53 days ago
Most Expensive
NZ Jewellers
8ca3231e-0032-4897-b85b-e3519ec4f67d · Oct 27
$1,851 USD
View
Price last confirmed 10 days ago
19 more retailers have this diamond
Prices start from $432 USDSave up to $929 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
$432 USD