Oval|Natural|GIA

0.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 2567161655

Certificate GIA 2567161655

Diamond specifications and retailer prices

From $570 USD
As of November 6, 2026
Save $1,370 USD (71%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,940 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2567161655. Listed at 16 retailers as of November 5, 2026, with prices from $570 to $1,940, a $1,370 spread on the same certified stone. NZ Jewellers lists it at $1,940. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2567161655
Dimensions6.26 × 4.50 × 2.84 mm
L/W Ratio1.39
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
6.26 mm4.50 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2567161655
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.1%

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: $1,940 USD|Low: $570 USD|High: $1,984 USD|Avg: $869 USD|-2.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 5$570 USD
Retailer 7$608 USD
Retailer 11$619 USD
Retailer 12$666 USD
Retailer 15$666 USD
Retailer 13$714 USD
Retailer 9$753 USD
Retailer 2$755 USD
Retailer 4$779 USD
Retailer 3$810 USD
Retailer 8$828 USD
Retailer 6$854 USD
Retailer 10$955 USD
Retailer 14$1,428 USD
NZ Jewellers$1,940 USD

27 data points across 15 retailers

16 retailers$570 USD to $1,940 USD

A
Cheapest Retailer
-
$570 USD
Final sale: no returns
A
Retailer 2
-
$608 USD
View
A
Retailer 3
-
$619 USD
View
A
Retailer 4
-
$666 USD
View
Retailer 5
-
$666 USD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$714 USD
View
B+
Retailer 7
-
$753 USD
View
B+
Retailer 8
-
$755 USD
View
B+
Retailer 9
-
$779 USD
View
B+
Retailer 10
-
$810 USD
View
B+
Retailer 11
-
$828 USD
View
B+
Retailer 12
-
$854 USD
View
B+
Retailer 13
-
$955 USD
View
Retailer 14
-
$1,003 USD
View
Price last confirmed 34 days ago
B
Retailer 15
-
$1,428 USD
View
Most Expensive
B
NZ Jewellers
ba5e2339-6805-4867-9208-27a31935c787 · Nov 5
$1,940 USD
View
15 more retailers have this diamond
Prices start from $570 USDSave up to $1,370 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
$570 USD