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Heart|Natural|GIA

1.20ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 5413323903

Certificate GIA 5413323903

Diamond specifications and retailer prices

From $4,677 SGD
As of November 5, 2026
Save $5,815 SGD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $10,491 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 5413323903. Listed at 11 retailers as of November 5, 2026, with prices from $4,677 to $10,491, a $5,815 spread on the same certified stone. NZ Jewellers lists it at $10,491. 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
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5413323903
Dimensions6.36 × 7.37 × 4.28 mm
L/W Ratio1.16
Top View
6.36 mm7.37 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5413323903
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.0%

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 5
Current: $10,491 SGD|Low: $4,497 SGD|High: $10,491 SGD|Avg: $6,468 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 3$4,677 SGD
Retailer 7$4,762 SGD
Retailer 5$5,035 SGD
Retailer 6$5,456 SGD
Retailer 8$5,456 SGD
Retailer 2$5,986 SGD
Retailer 9$6,294 SGD
Retailer 10$6,659 SGD
Retailer 4$9,565 SGD
NZ Jewellers$10,491 SGD

38 data points across 10 retailers

11 retailers$4,677 SGD to $10,491 SGD

B+
Cheapest Retailer
-
$4,677 SGD
B+
Retailer 2
-
$4,762 SGD
View
B
Retailer 3
-
$4,847 SGD
View
B
Retailer 4
-
$5,007 SGD
View
B
Retailer 5
-
$5,035 SGD
View
Final sale: no returns
B
Retailer 6
-
$5,456 SGD
View
B
Retailer 7
-
$5,456 SGD
View
B
Retailer 8
-
$5,986 SGD
View
B
Retailer 9
-
$6,294 SGD
View
B
Retailer 10
-
$9,565 SGD
View
Most Expensive
B
NZ Jewellers
f98dea9f-60bb-4ddc-afc2-d8ee93f13844 · Nov 5
$10,491 SGD
$8,186 USD
View
10 more retailers have this diamond
Prices start from $4,677 SGDSave up to $5,815 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
$4,677 SGD