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Heart|Natural|GIA

1.51ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 6541424633

Certificate GIA 6541424633

Diamond specifications and retailer prices

From $6,046 CAD
HK$33,800 HKD
As of November 2, 2026
Save $7,149 CAD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $13,446 CAD at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded G 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 6541424633. Listed at 21 retailers as of October 28, 2026, with a 118% 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

1.51
Carat
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541424633
Dimensions8.03 × 7.35 × 4.73 mm
L/W Ratio1.09
Top View
8.03 mm7.35 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541424633
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.9%

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 2
Current: $6,460 CAD|Low: $6,028 CAD|High: $13,248 CAD|Avg: $8,483 CAD|-3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 6$6,046 CAD
Retailer 1$6,460 CAD
Retailer 3$6,787 CAD
Retailer 4$7,172 CAD
Retailer 9$7,373 CAD
Retailer 5$7,747 CAD
Retailer 10$7,793 CAD
Retailer 2$8,083 CAD
Retailer 8$8,205 CAD
Retailer 7$9,037 CAD
Retailer 12$9,882 CAD
Retailer 11$11,844 CAD
Retailer 13$13,195 CAD

27 data points across 13 retailers

21 retailers$6,046 CAD to $13,195 CAD

A
Cheapest Retailer
-
$6,046 CAD
HK$33,800 HKD
A
Retailer 2
-
$6,460 CAD
₹440,289 INR
View
A
Retailer 3
-
$6,787 CAD
$4,857 USD
View
A
Retailer 4
-
$7,172 CAD
SGD 6,936 SGD
View
B+
Retailer 5
-
$7,373 CAD
$5,276 USD
View
Final sale: no returns
B+
Retailer 6
-
$7,458 CAD
$5,337 USD
View
B+
Retailer 7
-
$7,462 CAD
$5,340 USD
View
Retailer 8
-
$7,747 CAD
SGD 7,492 SGD
View
Price last confirmed 18 days ago
B+
Retailer 9
-
$7,793 CAD
£4,391 GBP
View
B+
Retailer 10
-
$7,810 CAD
A$8,598 AUD
View
Retailer 11
-
$8,039 CAD
$5,753 USD
View
Price last confirmed 17 days ago
Retailer 12
-
$8,039 CAD
$5,753 USD
View
Price last confirmed 15 days ago
Retailer 13
-
$8,039 CAD
$5,753 USD
View
Price last confirmed 16 days ago
Retailer 14
-
$8,083 CAD
A$8,899 AUD
View
Price last confirmed 15 days ago
B+
Retailer 15
-
$8,205 CAD
$5,871 USD
View
B+
Retailer 16
-
$9,037 CAD
€6,159 EUR
View
Retailer 17
-
$9,276 CAD
$6,638 USD
View
Price last confirmed 14 days ago
B+
Retailer 18
-
$9,882 CAD
ZAR 114,248 ZAR
View
B
Retailer 19
-
$11,844 CAD
£6,674 GBP
View
B
Retailer 20
-
$13,195 CAD
£7,435 GBP
View
Most Expensive
NZ Jewellers
59a2ea00-26f5-4f7a-b541-460bf1524131 · Oct 18
$13,446 CAD
$9,622 USD
View
Price last confirmed 15 days ago
20 more retailers have this diamond
Prices start from $6,046 CADSave up to $7,149 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
1.51ct Heart
$6,046 CAD