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Heart|Natural|IGI

1.50ct K SI1 Heart Natural Diamond

VG • K/SI1 • IGI 681559672

Shape and cutting style on the report: Heart brilliant

Certificate IGI 681559672

Diamond specifications and retailer prices

From $2,726 NZD
As of November 5, 2026
Save $3,496 NZD (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,916 NZD at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct 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 681559672. Listed at 15 retailers as of November 4, 2026, with a 128% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle35.8°
OriginNatural
Grading LabIGI
CertificateIGI 681559672
Dimensions6.88 × 7.88 × 4.54 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
Top View
6.88 mm7.88 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 681559672
Side View
Table 60.0%Crown 39.3°Girdle: STK-VTKPavilion 35.8°Culet: NoneDepth 57.6%

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: $3,281 NZD|Low: $2,726 NZD|High: $6,445 NZD|Avg: $4,205 NZD|-39.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8$2,726 NZD
Retailer 1$3,281 NZD
Retailer 3$3,473 NZD
Retailer 7$3,541 NZD
Retailer 12$3,570 NZD
Retailer 11$3,590 NZD
Retailer 4$3,595 NZD
Retailer 2$3,743 NZD
Retailer 9$4,346 NZD
Retailer 5$5,184 NZD
Retailer 6$6,003 NZD
Retailer 10$6,222 NZD

23 data points across 12 retailers

15 retailers$2,726 NZD to $6,222 NZD

A
Cheapest Retailer
-
$2,726 NZD
B+
Retailer 2
-
$3,281 NZD
View
A
Retailer 3
-
$3,473 NZD
View
A
Retailer 4
-
$3,541 NZD
View
A
Retailer 5
-
$3,570 NZD
View
B+
Retailer 6
-
$3,590 NZD
View
Retailer 7
-
$3,595 NZD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$3,743 NZD
View
Retailer 9
-
$3,786 NZD
View
Price last confirmed 45 days ago
B+
Retailer 10
-
$3,842 NZD
View
B+
Retailer 11
-
$4,346 NZD
View
B+
Retailer 12
-
$5,184 NZD
View
B+
Retailer 13
-
$6,003 NZD
View
B+
Retailer 14
-
$6,222 NZD
View
Most Expensive
NZ Jewellers
894ea465-fda4-48ff-a268-5fac68c966c3 · Sep 20
$7,916 NZD
$4,388 USD
View
Price last confirmed 46 days ago
14 more retailers have this diamond
Prices start from $2,726 NZDSave up to $3,496 NZD

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
1.50ct Heart
$2,726 NZD