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Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

GD • J/SI1 • GIA 5221061761

Certificate GIA 5221061761

Diamond specifications and retailer prices

From $2,431 AUD
As of November 6, 2026
Save $3,007 AUD (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,438 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5221061761. Listed at 20 retailers as of November 1, 2026, with prices from $2,431 to $5,438, a $3,007 spread on the same certified stone. MOH London lists it at $5,438. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5221061761
Dimensions6.15 × 5.79 × 3.91 mm
L/W Ratio1.06
Top View
6.15 mm5.79 mm1.20 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5221061761
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,438 AUD|Low: $2,431 AUD|High: $6,454 AUD|Avg: $3,792 AUD|-15.8%
MOH London
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 7, 2026
Retailer 13$2,431 AUD
Retailer 6$2,541 AUD
Retailer 8$2,569 AUD
Retailer 9$2,595 AUD
Retailer 5$2,643 AUD
Retailer 18$2,874 AUD
Retailer 17$2,904 AUD
Retailer 4$3,202 AUD
Retailer 10$3,202 AUD
Retailer 19$3,241 AUD
Retailer 3$3,250 AUD
Retailer 7$3,304 AUD
Retailer 2$3,372 AUD
Retailer 15$3,788 AUD
Retailer 14$3,954 AUD
Retailer 11$4,072 AUD
Retailer 12$4,251 AUD
Retailer 16$4,456 AUD
MOH London$5,438 AUD

41 data points across 19 retailers

20 retailers$2,431 AUD to $5,438 AUD

A
Cheapest Retailer
-
$2,431 AUD
B+
Retailer 2
-
$2,541 AUD
View
B+
Retailer 3
-
$2,569 AUD
View
B+
Retailer 4
-
$2,595 AUD
View
Final sale: no returns
B+
Retailer 5
-
$2,643 AUD
View
B+
Retailer 6
-
$2,874 AUD
View
B+
Retailer 7
-
$2,904 AUD
View
B
Retailer 8
-
$3,202 AUD
View
B
Retailer 9
-
$3,202 AUD
View
B
Retailer 10
-
$3,241 AUD
View
B
Retailer 11
-
$3,250 AUD
View
B
Retailer 12
-
$3,304 AUD
View
B
Retailer 13
-
$3,372 AUD
View
Retailer 14
-
$3,621 AUD
View
Price last confirmed 15 days ago
B
Retailer 15
-
$3,788 AUD
View
B
Retailer 16
-
$3,954 AUD
View
Retailer 17
-
$4,072 AUD
View
Price last confirmed 32 days ago
B
Retailer 18
-
$4,251 AUD
View
B
Retailer 19
-
$4,456 AUD
View
Most Expensive
B
MOH London
A8FADB89F · Nov 1
$5,438 AUD
£2,942 GBP
View
19 more retailers have this diamond
Prices start from $2,431 AUDSave up to $3,007 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.

A
1.20ct Heart
$2,431 AUD