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Heart|Natural|GIA

1.20ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 6552087009

Certificate GIA 6552087009

Diamond specifications and retailer prices

From $3,287 NZD
As of November 6, 2026
Save $5,399 NZD (62%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $8,686 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-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 6552087009. Listed at 5 retailers as of November 5, 2026, with prices from $3,287 to $8,686, a $5,399 spread on the same certified stone. NZ Jewellers lists it at $8,686. 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

1.20
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552087009
Dimensions6.42 × 7.58 × 4.09 mm
L/W Ratio1.18
Top View
6.42 mm7.58 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552087009
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 53.9%

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 6
Current: $8,686 NZD|Low: $2,917 NZD|High: $8,686 NZD|Avg: $5,215 NZD|+2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 5$3,287 NZD
Retailer 3$3,454 NZD
Retailer 4$3,644 NZD
Retailer 6$5,657 NZD
Retailer 2$6,205 NZD
NZ Jewellers$8,686 NZD

43 data points across 6 retailers

5 retailers$3,287 NZD to $8,686 NZD

A
Cheapest Retailer
-
$3,287 NZD
Final sale: no returns
A
Retailer 2
-
$3,454 NZD
View
A
Retailer 3
-
$3,644 NZD
View
B
Retailer 4
-
$6,205 NZD
View
Most Expensive
B
NZ Jewellers
19059b44-8795-4d0d-99eb-d80d777cc9b3 · Nov 5
$8,686 NZD
$4,815 USD
View
4 more retailers have this diamond
Prices start from $3,287 NZDSave up to $5,399 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
1.20ct Heart
$3,287 NZD