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Oval|Natural|GIA

0.51ct F SI1 Oval Natural Diamond

GD • F/SI1 • GIA 7492490306

Certificate GIA 7492490306

Diamond specifications and retailer prices

From $1,007 AUD
As of November 6, 2026
Save $990 AUD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,426 AUD at NZ Jewellers · As of September 30, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 7492490306. Listed at 15 retailers as of November 4, 2026, with a 98% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7492490306
Dimensions6.77 × 4.38 × 2.75 mm
L/W Ratio1.55
Key to symbols
Crystal
Top View
6.77 mm4.38 mm0.51 ctF / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7492490306
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 62.8%

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: $1,291 AUD|Low: $924 AUD|High: $2,024 AUD|Avg: $1,435 AUD|+4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$1,007 AUD
Retailer 5$1,025 AUD
Retailer 1$1,291 AUD
Retailer 6$1,346 AUD
Retailer 4$1,547 AUD
Retailer 8$1,642 AUD
Retailer 2$1,685 AUD
Retailer 3$1,997 AUD

42 data points across 8 retailers

15 retailers$1,007 AUD to $1,997 AUD

B+
Cheapest Retailer
-
$1,007 AUD
Final sale: no returns
B+
Retailer 2
-
$1,025 AUD
View
Retailer 3
-
$1,093 AUD
View
Price last confirmed 30 days ago
Retailer 4
-
$1,093 AUD
View
Price last confirmed 30 days ago
B+
Retailer 5
-
$1,110 AUD
View
Retailer 6
-
$1,134 AUD
View
Price last confirmed 39 days ago
Retailer 7
-
$1,260 AUD
View
Price last confirmed 39 days ago
B
Retailer 8
-
$1,285 AUD
View
B
Retailer 9
-
$1,291 AUD
View
B
Retailer 10
-
$1,346 AUD
View
B
Retailer 11
-
$1,547 AUD
View
Retailer 12
-
$1,642 AUD
View
Price last confirmed 34 days ago
B
Retailer 13
-
$1,685 AUD
View
B
Retailer 14
-
$1,997 AUD
View
Most Expensive
NZ Jewellers
f410a2aa-2356-4632-9caa-0db4fa25dcf5 · Sep 30
$3,426 AUD
$2,354 USD
View
Price under review
14 more retailers have this diamond
Prices start from $1,007 AUDSave up to $990 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
$1,007 AUD