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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 $4,783 SGD
As of November 6, 2026
Save $4,975 SGD (51%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,758 SGD 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 $4,783 to $9,758, a $4,975 spread on the same certified stone. NZ Jewellers lists it at $9,758. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $9,758 SGD|Low: $4,783 SGD|High: $10,058 SGD|Avg: $6,466 SGD|-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$4,783 SGD
Retailer 5$4,928 SGD
Retailer 9$5,169 SGD
Retailer 4$5,215 SGD
Retailer 3$5,312 SGD
Retailer 2$5,434 SGD
Retailer 17$5,601 SGD
Retailer 18$5,601 SGD
Retailer 13$5,674 SGD
Retailer 10$5,774 SGD
Retailer 19$5,792 SGD
Retailer 11$5,820 SGD
Retailer 15$5,874 SGD
Retailer 6$5,900 SGD
Retailer 12$6,303 SGD
Retailer 7$6,463 SGD
Retailer 14$6,833 SGD
Retailer 16$8,896 SGD
NZ Jewellers$9,758 SGD

34 data points across 19 retailers

19 retailers$4,783 SGD to $9,758 SGD

B+
Cheapest Retailer
-
$4,783 SGD
B+
Retailer 2
-
$4,928 SGD
View
B
Retailer 3
-
$5,169 SGD
View
Final sale: no returns
B
Retailer 4
-
$5,215 SGD
View
B
Retailer 5
-
$5,312 SGD
View
B+
Retailer 6
-
$5,434 SGD
View
B+
Retailer 7
-
$5,601 SGD
View
B+
Retailer 8
-
$5,601 SGD
View
B+
Retailer 9
-
$5,674 SGD
View
Retailer 10
-
$5,774 SGD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$5,792 SGD
View
Retailer 12
-
$5,820 SGD
View
Price last confirmed 29 days ago
B
Retailer 13
-
$5,874 SGD
View
B
Retailer 14
-
$5,900 SGD
View
B
Retailer 15
-
$6,303 SGD
View
B
Retailer 16
-
$6,463 SGD
View
B
Retailer 17
-
$6,833 SGD
View
B
Retailer 18
-
$8,896 SGD
View
Most Expensive
B
NZ Jewellers
0a25a36f-e9c2-4d5b-ab2c-e956a9981c5e · Nov 5
$9,758 SGD
$7,614 USD
View
18 more retailers have this diamond
Prices start from $4,783 SGDSave up to $4,975 SGD

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
$4,783 SGD