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Heart|Natural|GIA

1.51ct I SI1 Heart Natural Diamond

ID • I/SI1 • GIA 6552652410

Certificate GIA 6552652410

Diamond specifications and retailer prices

From $5,840 CAD
As of November 6, 2026
Save $6,434 CAD (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $12,799 CAD at NZ Jewellers · As of October 21, 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 I 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 6552652410. Listed at 16 retailers as of November 4, 2026, with a 110% 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
I
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552652410
Dimensions7.87 × 6.97 × 4.55 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
7.87 mm6.97 mm1.51 ctI / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552652410
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.9%

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 6
Current: $12,799 CAD|Low: $5,332 CAD|High: $12,799 CAD|Avg: $8,587 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
November 6, 2026
Retailer 4$5,840 CAD
Retailer 5$6,400 CAD
Retailer 3$6,933 CAD
Retailer 2$7,292 CAD
Retailer 6$7,503 CAD
Retailer 10$7,849 CAD
Retailer 11$7,849 CAD
Retailer 13$7,999 CAD
Retailer 12$8,102 CAD
Retailer 7$8,696 CAD
Retailer 8$9,427 CAD
Retailer 9$12,274 CAD
NZ Jewellers$12,799 CAD

38 data points across 13 retailers

16 retailers$5,840 CAD to $12,274 CAD

A
Cheapest Retailer
-
$5,840 CAD
A
Retailer 2
-
$5,867 CAD
View
B+
Retailer 3
-
$6,920 CAD
View
Retailer 4
-
$6,933 CAD
View
Price last confirmed 18 days ago
Retailer 5
-
$6,933 CAD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
$7,292 CAD
View
B+
Retailer 7
-
$7,503 CAD
View
B+
Retailer 8
-
$7,849 CAD
View
B+
Retailer 9
-
$7,849 CAD
View
B+
Retailer 10
-
$7,932 CAD
View
Retailer 11
-
$7,999 CAD
View
Price last confirmed 17 days ago
B
Retailer 12
-
$8,102 CAD
View
B+
Retailer 13
-
$8,696 CAD
View
B
Retailer 14
-
$9,427 CAD
View
B
Retailer 15
-
$12,274 CAD
View
Most Expensive
NZ Jewellers
5f69c31b-1f01-42cc-8698-0ea82b4976e0 · Oct 21
$12,799 CAD
$9,099 USD
View
Price last confirmed 16 days ago
15 more retailers have this diamond
Prices start from $5,840 CADSave up to $6,434 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
$5,840 CAD