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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 $4,119 AUD
As of November 5, 2026
Save $3,895 AUD (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,013 AUD 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 $4,119 to $8,013, a $3,895 spread on the same certified stone. NZ Jewellers lists it at $8,013. 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: $8,013 AUD|Low: $4,119 AUD|High: $8,261 AUD|Avg: $5,304 AUD|-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$4,119 AUD
Retailer 16$4,119 AUD
Retailer 9$4,245 AUD
Retailer 5$4,378 AUD
Retailer 11$4,462 AUD
Retailer 17$4,601 AUD
Retailer 10$4,742 AUD
Retailer 13$4,759 AUD
Retailer 3$4,777 AUD
Retailer 4$4,807 AUD
Retailer 2$4,845 AUD
Retailer 15$4,880 AUD
Retailer 7$5,142 AUD
Retailer 8$5,308 AUD
Retailer 12$5,356 AUD
Retailer 14$5,613 AUD
Retailer 18$7,692 AUD
NZ Jewellers$8,013 AUD

28 data points across 18 retailers

19 retailers$4,119 AUD to $8,013 AUD

B+
Cheapest Retailer
-
$4,119 AUD
B+
Retailer 2
-
$4,119 AUD
View
B+
Retailer 3
-
$4,245 AUD
View
Final sale: no returns
B+
Retailer 4
-
$4,378 AUD
View
B+
Retailer 5
-
$4,462 AUD
View
B+
Retailer 6
-
$4,601 AUD
View
Retailer 7
-
$4,742 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$4,759 AUD
View
B+
Retailer 9
-
$4,777 AUD
View
B+
Retailer 10
-
$4,807 AUD
View
B+
Retailer 11
-
$4,845 AUD
View
B+
Retailer 12
-
$4,880 AUD
View
Retailer 13
-
$5,065 AUD
View
Price last confirmed 31 days ago
B
Retailer 14
-
$5,142 AUD
View
B+
Retailer 15
-
$5,308 AUD
View
B+
Retailer 16
-
$5,356 AUD
View
B
Retailer 17
-
$5,613 AUD
View
B
Retailer 18
-
$7,692 AUD
View
Most Expensive
B
NZ Jewellers
4e7c2b87-0a6b-470c-b50c-3fab8bf0dc01 · Nov 5
$8,013 AUD
$5,506 USD
View
18 more retailers have this diamond
Prices start from $4,119 AUDSave up to $3,895 AUD

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
$4,119 AUD