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Oval|Natural|GIA

0.51ct I SI2 Oval Natural Diamond

GD • I/SI2 • GIA 6501279124

Certificate GIA 6501279124

Diamond specifications and retailer prices

From $938 AUD
$659 USD
As of October 31, 2026
Save $1,293 AUD (58%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,231 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6501279124. Listed at 23 retailers as of October 29, 2026, with prices from $938 to $2,231, a $1,293 spread on the same certified stone. MOH London lists it at $2,231. 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
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6501279124
Dimensions6.67 × 4.44 × 2.74 mm
L/W Ratio1.50
Top View
6.67 mm4.44 mm0.51 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6501279124
Side View
Table 65.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.6%

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: Oct 31
Current: $2,231 AUD|Low: $853 AUD|High: $2,246 AUD|Avg: $1,482 AUD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5$938 AUD
Retailer 4$1,096 AUD
Retailer 6$1,130 AUD
Retailer 8$1,392 AUD
Retailer 2$1,459 AUD
Retailer 7$1,692 AUD
Retailer 3$1,712 AUD
Retailer 9$1,822 AUD
MOH London$2,231 AUD

40 data points across 9 retailers

23 retailers$938 AUD to $2,231 AUD

B+
Cheapest Retailer
-
$938 AUD
$659 USD
Final sale: no returns
B
Retailer 2
-
$1,010 AUD
$709 USD
View
B
Retailer 3
-
$1,096 AUD
$770 USD
View
B
Retailer 4
-
$1,098 AUD
$771 USD
View
B
Retailer 5
-
$1,098 AUD
$771 USD
View
B
Retailer 6
-
$1,105 AUD
$776 USD
View
B
Retailer 7
-
$1,113 AUD
$782 USD
View
B
Retailer 8
-
$1,130 AUD
$794 USD
View
B
Retailer 9
-
$1,139 AUD
$800 USD
View
B
Retailer 10
-
$1,266 AUD
$889 USD
View
B
Retailer 11
-
$1,352 AUD
$950 USD
View
B
Retailer 12
-
$1,352 AUD
$950 USD
View
B
Retailer 13
-
$1,354 AUD
$951 USD
View
B
Retailer 14
-
$1,392 AUD
$978 USD
View
B
Retailer 15
-
$1,395 AUD
$980 USD
View
B
Retailer 16
-
$1,459 AUD
£807 GBP
View
C
Retailer 17
-
$1,486 AUD
$1,044 USD
View
C
Retailer 18
-
$1,692 AUD
View
C
Retailer 19
-
$1,703 AUD
$1,196 USD
View
C
Retailer 20
-
$1,712 AUD
€1,145 EUR
View
C
Retailer 21
-
$1,950 AUD
CA$1,903 CAD
View
Most Expensive
C
MOH London
E1ED5DAB9 · Oct 29
$2,231 AUD
£1,234 GBP
View
21 more retailers have this diamond
Prices start from $938 AUDSave up to $1,293 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
$938 AUD