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Heart|Natural|GIA

1.20ct F SI1 Heart Natural Diamond

ID • F/SI1 • GIA 1533868510

Certificate GIA 1533868510

Diamond specifications and retailer prices

From $3,627 SGD
As of November 5, 2026
Save $3,430 SGD (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,056 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 1533868510. Listed at 19 retailers as of November 5, 2026, with prices from $3,627 to $7,056, a $3,430 spread on the same certified stone. NZ Jewellers lists it at $7,056. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle36.42°
Pavilion angle43.11°
OriginNatural
Grading LabGIA
CertificateGIA 1533868510
Dimensions7.31 × 6.60 × 4.33 mm
L/W Ratio1.11
Culet sizeNone
Key to symbols
Feather, Twinning Wisp
Top View
7.31 mm6.60 mm1.20 ctF / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1533868510
Side View
Table 58.0%Crown 36.42°Girdle: Slightly ThickPavilion 43.11°Culet: NoneDepth 59.3%

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: $7,056 SGD|Low: $3,627 SGD|High: $7,274 SGD|Avg: $4,670 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
November 6, 2026
Retailer 6$3,627 SGD
Retailer 16$3,627 SGD
Retailer 9$3,738 SGD
Retailer 5$3,855 SGD
Retailer 11$3,929 SGD
Retailer 17$4,051 SGD
Retailer 10$4,175 SGD
Retailer 13$4,191 SGD
Retailer 3$4,206 SGD
Retailer 4$4,233 SGD
Retailer 2$4,266 SGD
Retailer 15$4,297 SGD
Retailer 7$4,528 SGD
Retailer 8$4,674 SGD
Retailer 12$4,716 SGD
Retailer 14$4,943 SGD
Retailer 18$6,773 SGD
NZ Jewellers$7,056 SGD

28 data points across 18 retailers

19 retailers$3,627 SGD to $7,056 SGD

B+
Cheapest Retailer
-
$3,627 SGD
B+
Retailer 2
-
$3,627 SGD
View
B+
Retailer 3
-
$3,738 SGD
View
Final sale: no returns
B+
Retailer 4
-
$3,855 SGD
View
B+
Retailer 5
-
$3,929 SGD
View
B+
Retailer 6
-
$4,051 SGD
View
Retailer 7
-
$4,175 SGD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$4,191 SGD
View
B+
Retailer 9
-
$4,206 SGD
View
B+
Retailer 10
-
$4,233 SGD
View
B+
Retailer 11
-
$4,266 SGD
View
B+
Retailer 12
-
$4,297 SGD
View
Retailer 13
-
$4,460 SGD
View
Price last confirmed 30 days ago
B
Retailer 14
-
$4,528 SGD
View
B+
Retailer 15
-
$4,674 SGD
View
B+
Retailer 16
-
$4,716 SGD
View
B
Retailer 17
-
$4,943 SGD
View
B
Retailer 18
-
$6,773 SGD
View
Most Expensive
B
NZ Jewellers
4e7c2b87-0a6b-470c-b50c-3fab8bf0dc01 · Nov 5
$7,056 SGD
$5,506 USD
View
18 more retailers have this diamond
Prices start from $3,627 SGDSave up to $3,430 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
$3,627 SGD