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Heart|Natural|IGI

1.55ct K SI1 Heart Natural Diamond

VG • K/SI1 • IGI 602363605

Shape and cutting style on the report: Heart brilliant

Certificate IGI 602363605

Diamond specifications and retailer prices

From $3,126 NZD
As of November 5, 2026
Save $2,868 NZD (48%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,368 NZD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.55ct natural heart diamond

This 1.55ct 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 602363605. Listed at 16 retailers as of November 4, 2026, with a 92% 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

1.55
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.9°
Pavilion angle36.5°
OriginNatural
Grading LabIGI
CertificateIGI 602363605
Dimensions7.37 × 7.89 × 4.41 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Top View
7.37 mm7.89 mm1.55 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 602363605
Side View
Table 56.0%Crown 36.9°Girdle: STK-VTKPavilion 36.5°Culet: NoneDepth 55.9%

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: $3,328 NZD|Low: $3,325 NZD|High: $6,081 NZD|Avg: $4,014 NZD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$3,328 NZD
Retailer 7$3,353 NZD
Retailer 6$3,431 NZD
Retailer 5$3,590 NZD
Retailer 2$3,790 NZD
Retailer 3$4,187 NZD
Retailer 4$5,994 NZD

45 data points across 7 retailers

16 retailers$3,126 NZD to $5,994 NZD

A
Cheapest Retailer
-
$3,126 NZD
A
Retailer 2
-
$3,328 NZD
View
B+
Retailer 3
-
$3,353 NZD
View
Retailer 4
-
$3,431 NZD
View
Price last confirmed 53 days ago
Retailer 5
-
$3,431 NZD
View
Price last confirmed 12 days ago
Retailer 6
-
$3,431 NZD
View
Price last confirmed 38 days ago
Retailer 7
-
$3,431 NZD
View
Price last confirmed 29 days ago
B+
Retailer 8
-
$3,518 NZD
View
B+
Retailer 9
-
$3,590 NZD
View
B+
Retailer 10
-
$3,678 NZD
View
B+
Retailer 11
-
$3,790 NZD
View
Retailer 12
-
$3,958 NZD
View
Price last confirmed 38 days ago
B+
Retailer 13
-
$4,187 NZD
View
Retailer 14
-
$4,338 NZD
View
Price last confirmed 48 days ago
B+
Retailer 15
-
$5,994 NZD
View
Most Expensive
NZ Jewellers
edfcf161-9590-4412-b300-0dc6c2c1443c · Sep 29
$8,368 NZD
$4,639 USD
View
Price last confirmed 38 days ago
15 more retailers have this diamond
Prices start from $3,126 NZDSave up to $2,868 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
1.55ct Heart
$3,126 NZD