Heart|Natural|GIA

0.51ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 6525804276

Certificate GIA 6525804276

Diamond specifications and retailer prices

From $737 CAD
As of November 1, 2026
Save $377 CAD (34%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,515 CAD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6525804276. Listed at 16 retailers as of October 31, 2026, with a 51% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6525804276
Dimensions4.76 × 5.49 × 3.34 mm
L/W Ratio1.15
Top View
4.76 mm5.49 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6525804276
Side View
Table 61.0%CrownGirdlePavilionCulet: NoneDepth 61.0%

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: Nov 1
Current: $2,515 CAD|Low: $591 CAD|High: $2,515 CAD|Avg: $1,105 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 10$595 CAD
Retailer 2$737 CAD
Retailer 4$740 CAD
Retailer 5$802 CAD
Retailer 3$864 CAD
Retailer 14$864 CAD
Retailer 6$926 CAD
Retailer 8$983 CAD
Retailer 11$987 CAD
Retailer 12$1,004 CAD
Retailer 15$1,076 CAD
Retailer 7$1,205 CAD
Retailer 9$1,238 CAD
Retailer 13$1,854 CAD
NZ Jewellers$2,515 CAD

29 data points across 15 retailers

16 retailers$737 CAD to $1,114 CAD

Retailer 1
-
$595 CAD
Price last confirmed 7 days ago
B+
Retailer 2
-
$737 CAD
View
Retailer 3
-
$802 CAD
View
Price last confirmed 8 days ago
Retailer 4
-
$864 CAD
View
Price last confirmed 8 days ago
Retailer 5
-
$864 CAD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$926 CAD
View
Retailer 7
-
$926 CAD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$983 CAD
View
Retailer 9
-
$987 CAD
View
Price last confirmed 7 days ago
Retailer 10
-
$1,004 CAD
View
Price last confirmed 7 days ago
Retailer 11
-
$1,076 CAD
View
Price last confirmed 4 days ago
B
Retailer 12
-
$1,114 CAD
View
Retailer 13
-
$1,205 CAD
View
Price last confirmed 33 days ago
Retailer 14
-
$1,238 CAD
View
Price last confirmed 7 days ago
Retailer 15
-
$1,854 CAD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
83a05a61-9849-4b5b-bd93-f7104d6a2321 · Oct 30
$2,515 CAD
$1,788 USD
View
Price under review
15 more retailers have this diamond
Prices start from $737 CADSave up to $377 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 Heart
$737 CAD