Heart|Natural|GIA

1.51ct K SI2 Heart Natural Diamond

FR • K/SI2 • GIA 2457516258

Certificate GIA 2457516258

Diamond specifications and retailer prices

From $3,677 CAD
As of November 4, 2026
13 retailers carry this diamond
Most expensive: $8,141 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2457516258. Listed at 13 retailers as of November 4, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
K
Color
SI2
Clarity
Fair
Cut (retailer stated)

Specifications

Cut (retailer stated)Fair
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2457516258
Dimensions6.65 × 7.96 × 4.74 mm
L/W Ratio1.20
Top View
6.65 mm7.96 mm1.51 ctK / SI2
OriginNatural
CutFair
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2457516258
Side View
Table 52.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.6%

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 4
Current: $3,677 CAD|Low: $3,064 CAD|High: $7,908 CAD|Avg: $4,964 CAD|+20.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 4, 2026
Retailer 1$3,677 CAD
Retailer 9$3,792 CAD
Retailer 2$4,234 CAD
Retailer 7$4,234 CAD
Retailer 11$4,268 CAD
Retailer 5$4,708 CAD
Retailer 4$4,830 CAD
Retailer 3$5,031 CAD
Retailer 10$5,560 CAD
Retailer 8$6,742 CAD
Retailer 6$7,856 CAD

40 data points across 11 retailers

13 retailers

Retailer 1
-
$3,585 CAD
Price last confirmed 20 days ago
B+
Retailer 2
-
$3,677 CAD
View
Retailer 3
-
$3,792 CAD
View
Price last confirmed 17 days ago
Retailer 4
-
$4,234 CAD
View
Price last confirmed 17 days ago
Retailer 5
-
$4,234 CAD
View
Price last confirmed 21 days ago
Retailer 6
-
$4,268 CAD
View
Price last confirmed 19 days ago
Retailer 7
-
$4,314 CAD
View
Price last confirmed 22 days ago
Retailer 8
-
$4,396 CAD
View
Price last confirmed 21 days ago
Retailer 9
-
$4,830 CAD
View
Price last confirmed 16 days ago
Retailer 10
-
$4,885 CAD
View
Price last confirmed 18 days ago
Retailer 11
-
$6,742 CAD
View
Price last confirmed 18 days ago
Retailer 12
-
$7,856 CAD
View
Price last confirmed 20 days ago
Most Expensive
NZ Jewellers
ef507fc5-24aa-482a-a62b-d7e834340f75 · Oct 18
$8,141 CAD
$5,788 USD
View
Price last confirmed 19 days ago
12 more retailers have this diamond
Prices start from $3,677 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+
1.51ct Heart
$3,677 CAD