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Oval|Natural|GIA

0.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 1478792767

Certificate GIA 1478792767

Diamond specifications and retailer prices

From $1,730 NZD
As of November 6, 2026
Save $2,047 NZD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,046 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 1478792767. Listed at 18 retailers as of November 4, 2026, with a 118% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1478792767
Dimensions6.46 × 4.31 × 2.72 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizeNone
Cert comments
Inscription(s): GIA 1478792767
Top View
6.46 mm4.31 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 1478792767
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 63.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,831 NZD|Low: $1,468 NZD|High: $3,833 NZD|Avg: $2,412 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11$1,730 NZD
Retailer 8$1,741 NZD
Retailer 9$1,804 NZD
Retailer 1$1,831 NZD
Retailer 3$1,946 NZD
Retailer 10$2,129 NZD
Retailer 5$2,334 NZD
Retailer 2$2,704 NZD
Retailer 4$2,879 NZD
Retailer 6$3,193 NZD
Retailer 7$3,777 NZD

43 data points across 11 retailers

18 retailers$1,730 NZD to $3,777 NZD

B+
Cheapest Retailer
-
$1,730 NZD
Final sale: no returns
B+
Retailer 2
-
$1,735 NZD
View
B+
Retailer 3
-
$1,789 NZD
View
Retailer 4
-
$1,804 NZD
View
Price last confirmed 10 days ago
B
Retailer 5
-
$1,831 NZD
View
Retailer 6
-
$1,874 NZD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$1,874 NZD
View
B
Retailer 8
-
$1,946 NZD
View
B
Retailer 9
-
$2,129 NZD
View
B
Retailer 10
-
$2,163 NZD
View
B
Retailer 11
-
$2,334 NZD
View
B
Retailer 12
-
$2,379 NZD
View
Retailer 13
-
$2,704 NZD
View
Price last confirmed 33 days ago
B
Retailer 14
-
$2,879 NZD
View
B
Retailer 15
-
$3,193 NZD
View
B
Retailer 16
-
$3,361 NZD
View
B
Retailer 17
-
$3,777 NZD
View
Most Expensive
NZ Jewellers
77584bb3-a968-4db0-8ddc-5397316cd7de · Nov 5
$5,046 NZD
$2,797 USD
View
Price under review
17 more retailers have this diamond
Prices start from $1,730 NZDSave up to $2,047 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.

B+
0.51ct Oval
$1,730 NZD