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Heart|Natural|GIA

1.20ct F SI2 Heart Natural Diamond

ID • F/SI2 • GIA 6555734831

Certificate GIA 6555734831

Diamond specifications and retailer prices

From $4,484 NZD
As of November 6, 2026
Save $4,010 NZD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $10,163 NZD at NZ Jewellers · As of October 6, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555734831. Listed at 12 retailers as of November 4, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555734831
Dimensions6.29 × 7.40 × 4.43 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
6.29 mm7.40 mm1.20 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555734831
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,780 NZD|Low: $4,113 NZD|High: $8,621 NZD|Avg: $5,585 NZD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$4,484 NZD
Retailer 1$4,780 NZD
Retailer 4$4,862 NZD
Retailer 2$5,145 NZD
Retailer 6$5,556 NZD
Retailer 7$5,783 NZD
Retailer 3$8,495 NZD

38 data points across 7 retailers

12 retailers$4,484 NZD to $8,495 NZD

B+
Cheapest Retailer
-
$4,484 NZD
Final sale: no returns
B+
Retailer 2
-
$4,780 NZD
View
Retailer 3
-
$4,862 NZD
View
Price last confirmed 31 days ago
Retailer 4
-
$4,862 NZD
View
Price last confirmed 13 days ago
Retailer 5
-
$4,862 NZD
View
Price last confirmed 30 days ago
Retailer 6
-
$5,049 NZD
View
Price last confirmed 37 days ago
B+
Retailer 7
-
$5,145 NZD
View
Retailer 8
-
$5,556 NZD
View
Price last confirmed 12 days ago
Retailer 9
-
$5,608 NZD
View
Price last confirmed 31 days ago
B
Retailer 10
-
$8,495 NZD
View
Retailer 11
-
$10,163 NZD
View
Price last confirmed 43 days ago
Most Expensive
NZ Jewellers
ec8f9bf3-c137-4353-90f9-e9804192ff54 · Oct 6
$10,163 NZD
$5,634 USD
View
Price last confirmed 31 days ago
11 more retailers have this diamond
Prices start from $4,484 NZDSave up to $4,010 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.

B+
1.20ct Heart
$4,484 NZD