CaratHunter
Plans
Oval|Natural|GIA

0.51ct I SI2 Oval Natural Diamond

GD • I/SI2 • GIA 6545988752

Certificate GIA 6545988752

Diamond specifications and retailer prices

From $531 AUD
$373 USD
As of October 31, 2026
Save $122 AUD (19%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $653 AUD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

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 6545988752. Listed at 3 retailers as of October 31, 2026, with prices from $531 to $653, a $122 spread on the same certified stone. 77 Diamonds lists it at $653. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545988752
Dimensions6.24 × 4.51 × 2.86 mm
L/W Ratio1.38
Top View
6.24 mm4.51 mm0.51 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545988752
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.4%

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: $653 AUD|Low: $460 AUD|High: $686 AUD|Avg: $582 AUD|-3.0%
77 Diamonds
Retailer 2
Retailer 3
November 1, 2026
Retailer 2$531 AUD
Retailer 3$568 AUD
77 Diamonds$653 AUD

34 data points across 3 retailers

3 retailers$531 AUD to $653 AUD

B+
Cheapest Retailer
-
$531 AUD
$373 USD
Final sale: no returns
B+
Retailer 2
-
$568 AUD
SGD 539 SGD
View
Most Expensive
B+
77 Diamonds
OVCPXZGFK6Z8 · Nov 1
$653 AUD
£361 GBP
View
2 more retailers have this diamond
Prices start from $531 AUDSave up to $122 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
$531 AUD