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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 3555615885

Certificate GIA 3555615885

Diamond specifications and retailer prices

From $3,935 CAD
$2,817 USD
As of October 31, 2026
Save $469 CAD (11%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $6,549 CAD at Wholesale Diamonds Direct · As of October 14, 2026
View at Wholesale Diamonds Direct

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555615885. Listed at 7 retailers as of October 31, 2026, with a relatively tight 12% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.91°
Pavilion angle40.12°
OriginNatural
Grading LabGIA
CertificateGIA 3555615885
Dimensions6.92 × 7.90 × 4.72 mm
L/W Ratio1.14
Culet sizeNone
Top View
6.92 mm7.90 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555615885
Side View
Table 59.0%Crown 34.91°Girdle: THN-THKPavilion 40.12°Culet: NoneDepth 59.8%

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: Oct 31
Current: $3,515 CAD|Low: $2,843 CAD|High: $6,805 CAD|Avg: $4,528 CAD|-4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
October 17, 2026
Retailer 10$2,843 CAD
Retailer 1$3,515 CAD
Retailer 3$3,751 CAD
Retailer 7$3,935 CAD
Retailer 5$4,033 CAD
Retailer 4$4,155 CAD
Retailer 2$4,404 CAD
Retailer 6$4,884 CAD
Retailer 9$5,040 CAD
Retailer 8$5,550 CAD
Wholesale Diamonds Direct$6,549 CAD

18 data points across 11 retailers

7 retailers$3,935 CAD to $4,404 CAD

Retailer 1
-
$3,515 CAD
SGD 3,400 SGD
Price last confirmed 12 days ago
Retailer 2
-
$3,751 CAD
$2,685 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$3,935 CAD
$2,817 USD
View
Retailer 4
-
$4,033 CAD
£2,273 GBP
View
Price last confirmed 17 days ago
Retailer 5
-
$4,155 CAD
SGD 4,020 SGD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$4,404 CAD
$3,153 USD
View
Most Expensive
Wholesale Diamonds Direct
419410307 · Oct 14
$6,549 CAD
$4,688 USD
View
Price last confirmed 18 days ago
6 more retailers have this diamond
Prices start from $3,935 CADSave up to $469 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
$3,935 CAD