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Heart|Natural|GIA

0.51ct H SI1 Heart Natural Diamond

GD • H/SI1 • GIA 6525215528

Certificate GIA 6525215528

Diamond specifications and retailer prices

From $544 CAD
As of November 6, 2026
Save $151 CAD (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $696 CAD at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6525215528. Listed at 4 retailers as of November 6, 2026, with prices from $544 to $696, a $151 spread on the same certified stone. 77 Diamonds lists it at $696. 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
H
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6525215528
Dimensions4.81 × 5.67 × 3.35 mm
L/W Ratio1.18
Top View
4.81 mm5.67 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6525215528
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.1%

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: Nov 6
Current: $696 CAD|Low: $516 CAD|High: $793 CAD|Avg: $624 CAD|-10.6%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 7, 2026
Retailer 2$544 CAD
Retailer 3$565 CAD
Retailer 4$608 CAD
77 Diamonds$696 CAD

42 data points across 4 retailers

4 retailers$544 CAD to $696 CAD

A
Cheapest Retailer
-
$544 CAD
A
Retailer 2
-
$565 CAD
View
Final sale: no returns
B+
Retailer 3
-
$608 CAD
View
Most Expensive
B+
77 Diamonds
HSCPHRRPCQMU · Nov 7
$696 CAD
£389 GBP
View
3 more retailers have this diamond
Prices start from $544 CADSave up to $151 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
$544 CAD