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Heart|Natural|GIA

0.51ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 2544040645

Certificate GIA 2544040645

Diamond specifications and retailer prices

From $529 CAD
As of November 6, 2026
Save $174 CAD (25%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $703 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2544040645. Listed at 4 retailers as of November 5, 2026, with prices from $529 to $703, a $174 spread on the same certified stone. Blue Nile lists it at $703. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2544040645
Dimensions5.04 × 5.55 × 3.30 mm
L/W Ratio1.10
Top View
5.04 mm5.55 mm0.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2544040645
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.5%

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: $703 CAD|Low: $489 CAD|High: $813 CAD|Avg: $635 CAD|-13.5%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3$529 CAD
Retailer 4$568 CAD
Retailer 2$647 CAD
Blue Nile$703 CAD

42 data points across 4 retailers

4 retailers$529 CAD to $703 CAD

A
Cheapest Retailer
-
$529 CAD
Final sale: no returns
A
Retailer 2
-
$568 CAD
View
A
Retailer 3
-
$647 CAD
View
Most Expensive
B+
Blue Nile
27287114 · Nov 5
$703 CAD
$500 USD
View
3 more retailers have this diamond
Prices start from $529 CADSave up to $174 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
$529 CAD