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Oval|Natural|GIA

0.51ct I SI2 Oval Natural Diamond

VG • I/SI2 • GIA 1528479257

Certificate GIA 1528479257

Diamond specifications and retailer prices

From $706 AUD
$496 USD
As of October 31, 2026
Save $1,303 AUD (65%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,009 AUD at MOH London · As of November 1, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1528479257. Listed at 10 retailers as of October 31, 2026, with prices from $706 to $2,009, a $1,303 spread on the same certified stone. MOH London lists it at $2,009. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle29.6°
Pavilion angle40.7°
OriginNatural
Grading LabGIA
CertificateGIA 1528479257
Dimensions6.82 × 4.58 × 2.69 mm
L/W Ratio1.49
Culet sizeNone
Top View
6.82 mm4.58 mm0.51 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1528479257
Side View
Table 61.0%Crown 29.6°Girdle: Sli. ThickPavilion 40.7°Culet: NoneDepth 58.7%

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: Oct 31
Current: $2,009 AUD|Low: $551 AUD|High: $2,059 AUD|Avg: $1,012 AUD|-2.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 10$706 AUD
Retailer 6$727 AUD
Retailer 8$783 AUD
Retailer 9$802 AUD
Retailer 4$908 AUD
Retailer 7$937 AUD
Retailer 3$1,069 AUD
Retailer 5$1,108 AUD
Retailer 2$1,169 AUD
MOH London$2,009 AUD

43 data points across 10 retailers

10 retailers$706 AUD to $2,009 AUD

A
Cheapest Retailer
-
$706 AUD
$496 USD
B+
Retailer 2
-
$727 AUD
$511 USD
View
Final sale: no returns
B+
Retailer 3
-
$783 AUD
$550 USD
View
B+
Retailer 4
-
$802 AUD
HK$4,400 HKD
View
B+
Retailer 5
-
$908 AUD
$638 USD
View
B+
Retailer 6
-
$937 AUD
$658 USD
View
B
Retailer 7
-
$1,069 AUD
£591 GBP
View
B
Retailer 8
-
$1,108 AUD
$778 USD
View
B
Retailer 9
-
$1,169 AUD
€782 EUR
View
Most Expensive
C
MOH London
224760F52 · Nov 1
$2,009 AUD
£1,111 GBP
View
9 more retailers have this diamond
Prices start from $706 AUDSave up to $1,303 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.

A
0.51ct Oval
$706 AUD