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Oval|Natural|GIA

0.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 2567161655

Certificate GIA 2567161655

Diamond specifications and retailer prices

From $1,028 NZD
As of November 6, 2026
Save $2,471 NZD (71%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,500 NZD 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 $1,028 to $3,500, a $2,471 spread on the same certified stone. NZ Jewellers lists it at $3,500. 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
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,500 NZD|Low: $1,028 NZD|High: $3,579 NZD|Avg: $1,564 NZD|-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 7, 2026
Retailer 5$1,028 NZD
Retailer 7$1,097 NZD
Retailer 12$1,117 NZD
Retailer 2$1,201 NZD
Retailer 15$1,201 NZD
Retailer 13$1,288 NZD
Retailer 10$1,358 NZD
Retailer 8$1,362 NZD
Retailer 4$1,405 NZD
Retailer 3$1,461 NZD
Retailer 9$1,494 NZD
Retailer 6$1,541 NZD
Retailer 11$1,723 NZD
Retailer 14$2,576 NZD
NZ Jewellers$3,500 NZD

28 data points across 15 retailers

16 retailers$1,028 NZD to $3,500 NZD

A
Cheapest Retailer
-
$1,028 NZD
Final sale: no returns
A
Retailer 2
-
$1,097 NZD
View
A
Retailer 3
-
$1,117 NZD
View
A
Retailer 4
-
$1,201 NZD
View
Retailer 5
-
$1,201 NZD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$1,288 NZD
View
B+
Retailer 7
-
$1,358 NZD
View
B+
Retailer 8
-
$1,362 NZD
View
B+
Retailer 9
-
$1,405 NZD
View
B+
Retailer 10
-
$1,461 NZD
View
B+
Retailer 11
-
$1,494 NZD
View
B+
Retailer 12
-
$1,541 NZD
View
B+
Retailer 13
-
$1,723 NZD
View
Retailer 14
-
$1,809 NZD
View
Price last confirmed 34 days ago
B
Retailer 15
-
$2,576 NZD
View
Most Expensive
B
NZ Jewellers
ba5e2339-6805-4867-9208-27a31935c787 · Nov 5
$3,500 NZD
$1,940 USD
View
15 more retailers have this diamond
Prices start from $1,028 NZDSave up to $2,471 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.

A
0.51ct Oval
$1,028 NZD