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Heart|Natural|GIA

0.51ct F SI1 Heart Natural Diamond

GD • F/SI1 • GIA 2546919784

Certificate GIA 2546919784

Diamond specifications and retailer prices

From $648 CAD
As of November 6, 2026
Save $212 CAD (25%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $861 CAD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 0.51ct natural heart diamond

This 0.51ct natural heart 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 2546919784. Listed at 5 retailers as of November 5, 2026, with prices from $648 to $861, a $212 spread on the same certified stone. Blue Nile lists it at $861. 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
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2546919784
Dimensions4.95 × 5.41 × 3.21 mm
L/W Ratio1.09
Top View
4.95 mm5.41 mm0.51 ctF / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2546919784
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $861 CAD|Low: $591 CAD|High: $947 CAD|Avg: $757 CAD|-9.1%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 3$648 CAD
Retailer 4$667 CAD
Retailer 5$726 CAD
Retailer 2$830 CAD
Blue Nile$861 CAD

41 data points across 5 retailers

5 retailers$648 CAD to $861 CAD

A
Cheapest Retailer
-
$648 CAD
A
Retailer 2
-
$667 CAD
View
Final sale: no returns
B+
Retailer 3
-
$726 CAD
View
B
Retailer 4
-
$830 CAD
View
Most Expensive
B
Blue Nile
28681148 · Nov 5
$861 CAD
$612 USD
View
4 more retailers have this diamond
Prices start from $648 CADSave up to $212 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.

A
0.51ct Heart
$648 CAD