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Oval|Natural|GIA

0.51ct I SI2 Oval Natural Diamond

GD • I/SI2 • GIA 6545988752

Certificate GIA 6545988752

Diamond specifications and retailer prices

From $521 CAD
$373 USD
As of October 29, 2026
Save $125 CAD (19%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $646 CAD at 77 Diamonds · As of October 30, 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 29, 2026, with prices from $521 to $646, a $125 spread on the same certified stone. 77 Diamonds lists it at $646. 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
Color
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 29
Current: $646 CAD|Low: $451 CAD|High: $673 CAD|Avg: $572 CAD|-2.3%
77 Diamonds
Retailer 2
Retailer 3
October 30, 2026
Retailer 2$521 CAD
Retailer 3$557 CAD
77 Diamonds$646 CAD

35 data points across 3 retailers

3 retailers$521 CAD to $646 CAD

B+
Cheapest Retailer
-
$521 CAD
$373 USD
Final sale: no returns
B+
Retailer 2
-
$557 CAD
SGD 539 SGD
View
Most Expensive
B+
77 Diamonds
OVCPXZGFK6Z8 · Oct 30
$646 CAD
£364 GBP
View
2 more retailers have this diamond
Prices start from $521 CADSave up to $125 CAD

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
$521 CAD