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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 $1,396 AUD
As of November 6, 2026
Save $1,652 AUD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,071 AUD 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: $1,477 AUD|Low: $1,185 AUD|High: $3,093 AUD|Avg: $1,946 AUD
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$1,396 AUD
Retailer 8$1,404 AUD
Retailer 9$1,455 AUD
Retailer 1$1,477 AUD
Retailer 3$1,570 AUD
Retailer 10$1,717 AUD
Retailer 5$1,883 AUD
Retailer 2$2,182 AUD
Retailer 4$2,323 AUD
Retailer 6$2,576 AUD
Retailer 7$3,048 AUD

43 data points across 11 retailers

18 retailers$1,396 AUD to $3,048 AUD

B+
Cheapest Retailer
-
$1,396 AUD
Final sale: no returns
B+
Retailer 2
-
$1,400 AUD
View
B+
Retailer 3
-
$1,444 AUD
View
Retailer 4
-
$1,455 AUD
View
Price last confirmed 10 days ago
B
Retailer 5
-
$1,477 AUD
View
Retailer 6
-
$1,512 AUD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$1,512 AUD
View
B
Retailer 8
-
$1,570 AUD
View
B
Retailer 9
-
$1,717 AUD
View
B
Retailer 10
-
$1,745 AUD
View
B
Retailer 11
-
$1,883 AUD
View
B
Retailer 12
-
$1,920 AUD
View
Retailer 13
-
$2,182 AUD
View
Price last confirmed 33 days ago
B
Retailer 14
-
$2,323 AUD
View
B
Retailer 15
-
$2,576 AUD
View
B
Retailer 16
-
$2,711 AUD
View
B
Retailer 17
-
$3,048 AUD
View
Most Expensive
NZ Jewellers
77584bb3-a968-4db0-8ddc-5397316cd7de · Nov 5
$4,071 AUD
$2,797 USD
View
Price under review
17 more retailers have this diamond
Prices start from $1,396 AUDSave up to $1,652 AUD

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
$1,396 AUD