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Heart|Natural|IGI

1.51ct K SI1 Heart Natural Diamond

VG • K/SI1 • IGI 773617467

Shape and cutting style on the report: Heart brilliant

Certificate IGI 773617467

Diamond specifications and retailer prices

From $2,216 SGD
As of November 4, 2026
Save $3,718 SGD (63%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,934 SGD at NZ Jewellers · As of November 5, 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 773617467. Listed at 14 retailers as of November 4, 2026, with prices from $2,216 to $5,934, a $3,718 spread on the same certified stone. NZ Jewellers lists it at $5,934. 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
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle39.6°
OriginNatural
Grading LabIGI
CertificateIGI 773617467
Dimensions6.46 × 7.80 × 5.02 mm
L/W Ratio1.21
Girdle conditionFaceted
Top View
6.46 mm7.80 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 773617467
Side View
Table 56.0%Crown 39°Girdle: STK-THKPavilion 39.6°CuletDepth 64.4%

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: Nov 4
Current: $5,934 SGD|Low: $2,216 SGD|High: $6,212 SGD|Avg: $3,187 SGD|+6.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 11$2,216 SGD
Retailer 10$2,300 SGD
Retailer 2$2,359 SGD
Retailer 8$2,432 SGD
Retailer 5$2,472 SGD
Retailer 13$2,545 SGD
Retailer 4$2,547 SGD
Retailer 6$2,608 SGD
Retailer 7$2,686 SGD
Retailer 3$2,807 SGD
Retailer 9$2,968 SGD
Retailer 12$4,249 SGD
NZ Jewellers$5,934 SGD

38 data points across 13 retailers

14 retailers$2,216 SGD to $5,934 SGD

A
Cheapest Retailer
-
$2,216 SGD
A
Retailer 2
-
$2,300 SGD
View
A
Retailer 3
-
$2,359 SGD
View
A
Retailer 4
-
$2,432 SGD
View
B+
Retailer 5
-
$2,472 SGD
View
B+
Retailer 6
-
$2,545 SGD
View
Retailer 7
-
$2,547 SGD
View
Price last confirmed 8 days ago
Retailer 8
-
$2,547 SGD
View
Price last confirmed 21 days ago
B+
Retailer 9
-
$2,608 SGD
View
B+
Retailer 10
-
$2,686 SGD
View
B+
Retailer 11
-
$2,807 SGD
View
B+
Retailer 12
-
$2,968 SGD
View
B+
Retailer 13
-
$4,249 SGD
View
Most Expensive
B
NZ Jewellers
adefc08f-653b-44a9-92f3-95acbb36c18e · Nov 5
$5,934 SGD
$4,630 USD
View
13 more retailers have this diamond
Prices start from $2,216 SGDSave up to $3,718 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.

A
1.51ct Heart
$2,216 SGD