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Heart|Natural|GIA

1.20ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 5222429851

Certificate GIA 5222429851

Diamond specifications and retailer prices

From $5,084 AUD
As of November 5, 2026
Save $5,073 AUD (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $10,157 AUD at MOH London · As of November 1, 2026
View at MOH London

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 5222429851. Listed at 11 retailers as of November 1, 2026, with prices from $5,084 to $10,157, a $5,073 spread on the same certified stone. MOH London lists it at $10,157. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5222429851
Dimensions6.41 × 7.56 × 4.14 mm
L/W Ratio1.18
Top View
6.41 mm7.56 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5222429851
Side View
Table 62.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 54.8%

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: $10,157 AUD|Low: $4,611 AUD|High: $10,266 AUD|Avg: $6,492 AUD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 4$5,084 AUD
Retailer 7$5,333 AUD
Retailer 9$5,426 AUD
Retailer 12$5,509 AUD
Retailer 11$5,763 AUD
Retailer 5$6,463 AUD
Retailer 6$6,666 AUD
Retailer 8$6,756 AUD
Retailer 3$7,027 AUD
Retailer 10$7,213 AUD
Retailer 2$7,783 AUD
MOH London$10,157 AUD

33 data points across 12 retailers

11 retailers$5,084 AUD to $10,157 AUD

B+
Cheapest Retailer
-
$5,084 AUD
B
Retailer 2
-
$5,333 AUD
View
Final sale: no returns
B
Retailer 3
-
$5,426 AUD
View
B
Retailer 4
-
$5,509 AUD
View
B
Retailer 5
-
$5,763 AUD
View
B
Retailer 6
-
$6,463 AUD
View
B
Retailer 7
-
$6,666 AUD
View
Retailer 8
-
$6,756 AUD
View
Price last confirmed 42 days ago
Retailer 9
-
$7,213 AUD
View
Price last confirmed 25 days ago
B
Retailer 10
-
$7,783 AUD
View
Most Expensive
B
MOH London
586FAAB78 · Nov 1
$10,157 AUD
£5,495 GBP
View
10 more retailers have this diamond
Prices start from $5,084 AUDSave up to $5,073 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
$5,084 AUD