CaratHunter
Plans
Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 2564708245

Certificate GIA 2564708245

Diamond specifications and retailer prices

From $402 USD
As of November 6, 2026
Save $1,420 USD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,822 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 2564708245. Listed at 16 retailers as of November 5, 2026, with prices from $402 to $1,822, a $1,420 spread on the same certified stone. NZ Jewellers lists it at $1,822. 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
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2564708245
Dimensions6.52 × 4.49 × 2.77 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
6.52 mm4.49 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2564708245
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.8%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $1,822 USD|Low: $402 USD|High: $1,909 USD|Avg: $748 USD|-4.6%
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
Retailer 16
November 6, 2026
Retailer 15$402 USD
Retailer 9$425 USD
Retailer 14$567 USD
Retailer 2$578 USD
Retailer 3$580 USD
Retailer 13$581 USD
Retailer 16$626 USD
Retailer 7$646 USD
Retailer 4$670 USD
Retailer 8$690 USD
Retailer 10$690 USD
Retailer 12$706 USD
Retailer 6$775 USD
Retailer 11$780 USD
Retailer 5$1,361 USD
NZ Jewellers$1,822 USD

12 data points across 16 retailers

16 retailers$402 USD to $1,822 USD

A
Cheapest Retailer
-
$402 USD
Final sale: no returns
A
Retailer 2
-
$425 USD
View
A
Retailer 3
-
$567 USD
View
A
Retailer 4
-
$578 USD
View
A
Retailer 5
-
$580 USD
View
A
Retailer 6
-
$581 USD
View
A
Retailer 7
-
$626 USD
View
Retailer 8
-
$646 USD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$670 USD
View
Retailer 10
-
$690 USD
View
Price last confirmed 9 days ago
A
Retailer 11
-
$690 USD
View
A
Retailer 12
-
$706 USD
View
B+
Retailer 13
-
$775 USD
View
B+
Retailer 14
-
$780 USD
View
B
Retailer 15
-
$1,361 USD
View
Most Expensive
B
NZ Jewellers
eebda3ae-acc0-4855-b36f-1bf6872e3b09 · Nov 5
$1,822 USD
View
15 more retailers have this diamond
Prices start from $402 USDSave up to $1,420 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
$402 USD