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Heart|Natural|GIA

1.51ct K SI1 Heart Natural Diamond

GD • K/SI1 • GIA 6462181862

Certificate GIA 6462181862

Diamond specifications and retailer prices

From $4,123 CAD
As of November 4, 2026
Save $4,714 CAD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,837 CAD at MOH London · As of November 4, 2026
View at MOH London

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6462181862. Listed at 10 retailers as of November 4, 2026, with prices from $4,123 to $8,837, a $4,714 spread on the same certified stone. MOH London lists it at $8,837. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6462181862
Dimensions7.28 × 6.05 × 4.25 mm
L/W Ratio1.20
Top View
7.28 mm6.05 mm1.51 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6462181862
Side View
Table 53.0%CrownGirdle: ThickPavilionCulet: NoneDepth 70.2%

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: $8,837 CAD|Low: $4,068 CAD|High: $8,968 CAD|Avg: $5,851 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$4,123 CAD
Retailer 6$4,704 CAD
Retailer 8$5,071 CAD
Retailer 7$5,299 CAD
Retailer 4$5,486 CAD
Retailer 9$5,725 CAD
Retailer 2$6,168 CAD
Retailer 3$6,468 CAD
MOH London$8,837 CAD

41 data points across 9 retailers

10 retailers$4,123 CAD to $8,837 CAD

B+
Cheapest Retailer
-
$4,123 CAD
B+
Retailer 2
-
$4,704 CAD
View
B+
Retailer 3
-
$5,071 CAD
View
Retailer 4
-
$5,299 CAD
View
Price last confirmed 29 days ago
B+
Retailer 5
-
$5,486 CAD
View
B
Retailer 6
-
$5,503 CAD
View
B
Retailer 7
-
$5,725 CAD
View
B
Retailer 8
-
$6,168 CAD
View
B
Retailer 9
-
$6,468 CAD
View
Most Expensive
C
MOH London
BD868D2F7 · Nov 4
$8,837 CAD
£4,947 GBP
View
9 more retailers have this diamond
Prices start from $4,123 CADSave up to $4,714 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
$4,123 CAD