CaratHunter
Plans
Heart|Natural|GIA

1.51ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 2557604008

Certificate GIA 2557604008

Diamond specifications and retailer prices

From $3,727 CAD
As of November 5, 2026
Save $1,372 CAD (27%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,100 CAD at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557604008. Listed at 8 retailers as of November 5, 2026, with prices from $3,727 to $5,100, a $1,372 spread on the same certified stone. GemTrove lists it at $5,100. 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
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557604008
Dimensions7.02 × 8.11 × 4.76 mm
L/W Ratio1.16
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Pinpoint
Top View
7.02 mm8.11 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557604008
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.7%

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 5
Current: $4,019 CAD|Low: $3,343 CAD|High: $5,128 CAD|Avg: $4,161 CAD|-12.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$3,727 CAD
Retailer 4$3,743 CAD
Retailer 3$3,785 CAD
Retailer 7$3,840 CAD
Retailer 1$4,019 CAD
Retailer 6$4,337 CAD
Retailer 5$4,455 CAD

42 data points across 7 retailers

8 retailers$3,727 CAD to $5,100 CAD

A
Cheapest Retailer
-
$3,727 CAD
A
Retailer 2
-
$3,743 CAD
View
A
Retailer 3
-
$3,785 CAD
View
Final sale: no returns
A
Retailer 4
-
$3,840 CAD
View
A
Retailer 5
-
$4,019 CAD
View
A
Retailer 6
-
$4,337 CAD
View
A
Retailer 7
-
$4,455 CAD
View
Most Expensive
B+
GemTrove
GT-N-01269485-98 · Nov 6
$5,100 CAD
A$5,578 AUD
View
7 more retailers have this diamond
Prices start from $3,727 CADSave up to $1,372 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
$3,727 CAD