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Heart|Natural|GIA

1.20ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 6551190913

Certificate GIA 6551190913

Diamond specifications and retailer prices

From $6,732 NZD
As of November 6, 2026
Save $7,003 NZD (51%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $13,735 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551190913. Listed at 19 retailers as of November 5, 2026, with prices from $6,732 to $13,735, a $7,003 spread on the same certified stone. NZ Jewellers lists it at $13,735. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.14°
Pavilion angle44.14°
OriginNatural
Grading LabGIA
CertificateGIA 6551190913
Dimensions7.39 × 6.47 × 4.43 mm
L/W Ratio1.14
Top View
7.39 mm6.47 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551190913
Side View
Table 61.0%Crown 36.14°Girdle: Slightly ThickPavilion 44.14°Culet: 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: $13,735 NZD|Low: $6,732 NZD|High: $14,157 NZD|Avg: $9,101 NZD|-3.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 8$6,732 NZD
Retailer 5$6,936 NZD
Retailer 9$7,275 NZD
Retailer 4$7,340 NZD
Retailer 3$7,477 NZD
Retailer 2$7,649 NZD
Retailer 17$7,883 NZD
Retailer 18$7,883 NZD
Retailer 13$7,986 NZD
Retailer 10$8,127 NZD
Retailer 19$8,152 NZD
Retailer 11$8,192 NZD
Retailer 15$8,267 NZD
Retailer 6$8,305 NZD
Retailer 12$8,872 NZD
Retailer 7$9,097 NZD
Retailer 14$9,618 NZD
Retailer 16$12,521 NZD
NZ Jewellers$13,735 NZD

34 data points across 19 retailers

19 retailers$6,732 NZD to $13,735 NZD

B+
Cheapest Retailer
-
$6,732 NZD
B+
Retailer 2
-
$6,936 NZD
View
B
Retailer 3
-
$7,275 NZD
View
Final sale: no returns
B
Retailer 4
-
$7,340 NZD
View
B
Retailer 5
-
$7,477 NZD
View
B+
Retailer 6
-
$7,649 NZD
View
B+
Retailer 7
-
$7,883 NZD
View
B+
Retailer 8
-
$7,883 NZD
View
B+
Retailer 9
-
$7,986 NZD
View
Retailer 10
-
$8,127 NZD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$8,152 NZD
View
Retailer 12
-
$8,192 NZD
View
Price last confirmed 29 days ago
B
Retailer 13
-
$8,267 NZD
View
B
Retailer 14
-
$8,305 NZD
View
B
Retailer 15
-
$8,872 NZD
View
B
Retailer 16
-
$9,097 NZD
View
B
Retailer 17
-
$9,618 NZD
View
B
Retailer 18
-
$12,521 NZD
View
Most Expensive
B
NZ Jewellers
0a25a36f-e9c2-4d5b-ab2c-e956a9981c5e · Nov 5
$13,735 NZD
$7,614 USD
View
18 more retailers have this diamond
Prices start from $6,732 NZDSave up to $7,003 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
$6,732 NZD