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Heart|Natural|GIA

1.55ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 6555797191

Certificate GIA 6555797191

Diamond specifications and retailer prices

From $6,972 NZD
As of November 6, 2026
Save $8,924 NZD (56%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $15,896 NZD at NZ Jewellers · As of November 5, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555797191. Listed at 10 retailers as of November 5, 2026, with prices from $6,972 to $15,896, a $8,924 spread on the same certified stone. NZ Jewellers lists it at $15,896. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.55
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle36.87°
OriginNatural
Grading LabGIA
CertificateGIA 6555797191
Dimensions7.28 × 7.95 × 4.10 mm
L/W Ratio1.09
Key to symbols
Crystal, Cloud, Needle
Top View
7.28 mm7.95 mm1.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555797191
Side View
Table 62.0%CrownGirdle: STK-VTKPavilion 36.87°Culet: NoneDepth 56.3%

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 6
Current: $15,896 NZD|Low: $6,972 NZD|High: $17,446 NZD|Avg: $10,808 NZD|-8.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$6,972 NZD
Retailer 4$8,045 NZD
Retailer 7$8,366 NZD
Retailer 9$9,045 NZD
Retailer 5$9,503 NZD
Retailer 6$9,503 NZD
Retailer 2$10,854 NZD
Retailer 3$15,095 NZD
NZ Jewellers$15,896 NZD

41 data points across 9 retailers

10 retailers$6,972 NZD to $15,896 NZD

A
Cheapest Retailer
-
$6,972 NZD
A
Retailer 2
-
$8,045 NZD
View
A
Retailer 3
-
$8,366 NZD
View
Retailer 4
-
$9,045 NZD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$9,503 NZD
View
B+
Retailer 6
-
$9,503 NZD
View
B+
Retailer 7
-
$10,151 NZD
View
B+
Retailer 8
-
$10,854 NZD
View
B
Retailer 9
-
$15,095 NZD
View
Most Expensive
B
NZ Jewellers
6cb629f5-aa1b-47e8-bb9b-7983ae7fefb7 · Nov 5
$15,896 NZD
$8,812 USD
View
9 more retailers have this diamond
Prices start from $6,972 NZDSave up to $8,924 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
$6,972 NZD