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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 $3,756 SGD
As of November 6, 2026
Save $4,296 SGD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,052 SGD 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 $3,756 to $8,052, a $4,296 spread on the same certified stone. MOH London lists it at $8,052. 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
Colour
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 6
Current: $8,052 SGD|Low: $3,706 SGD|High: $8,171 SGD|Avg: $5,331 SGD|-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$3,756 SGD
Retailer 6$4,286 SGD
Retailer 8$4,620 SGD
Retailer 7$4,828 SGD
Retailer 4$4,998 SGD
Retailer 9$5,216 SGD
Retailer 2$5,620 SGD
Retailer 3$5,893 SGD
MOH London$8,052 SGD

41 data points across 9 retailers

10 retailers$3,756 SGD to $8,052 SGD

B+
Cheapest Retailer
-
$3,756 SGD
B+
Retailer 2
-
$4,286 SGD
View
B+
Retailer 3
-
$4,620 SGD
View
Retailer 4
-
$4,828 SGD
View
Price last confirmed 29 days ago
B+
Retailer 5
-
$4,998 SGD
View
B
Retailer 6
-
$5,014 SGD
View
B
Retailer 7
-
$5,216 SGD
View
B
Retailer 8
-
$5,620 SGD
View
B
Retailer 9
-
$5,893 SGD
View
Most Expensive
C
MOH London
BD868D2F7 · Nov 4
$8,052 SGD
£4,947 GBP
View
9 more retailers have this diamond
Prices start from $3,756 SGDSave up to $4,296 SGD

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
$3,756 SGD