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Heart|Natural|GIA

1.20ct F SI1 Heart Natural Diamond

GD • F/SI1 • GIA 6431067710

Shape and cutting style on the report: Cushion modified brilliant

Certificate GIA 6431067710

Diamond specifications and retailer prices

From $2,701 AUD
As of November 6, 2026
Save $3,644 AUD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,345 AUD at MOH London · As of November 4, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6431067710. Listed at 15 retailers as of November 4, 2026, with prices from $2,701 to $6,345, a $3,644 spread on the same certified stone. MOH London lists it at $6,345. 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
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6431067710
Dimensions6.62 × 5.39 × 4.00 mm
L/W Ratio1.23
Top View
6.62 mm5.39 mm1.20 ctF / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6431067710
Side View
Table 61.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 74.2%

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 6
Current: $6,345 AUD|Low: $2,682 AUD|High: $6,440 AUD|Avg: $3,967 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7$2,701 AUD
Retailer 8$3,280 AUD
Retailer 10$3,282 AUD
Retailer 9$3,352 AUD
Retailer 3$3,631 AUD
Retailer 5$3,842 AUD
Retailer 6$3,908 AUD
Retailer 11$4,084 AUD
Retailer 4$4,432 AUD
Retailer 2$4,509 AUD
MOH London$6,345 AUD

46 data points across 11 retailers

15 retailers$2,701 AUD to $6,345 AUD

B+
Cheapest Retailer
-
$2,701 AUD
B+
Retailer 2
-
$3,280 AUD
View
B+
Retailer 3
-
$3,282 AUD
View
B+
Retailer 4
-
$3,352 AUD
View
Final sale: no returns
B+
Retailer 5
-
$3,545 AUD
View
Retailer 6
-
$3,631 AUD
View
Price last confirmed 8 days ago
Retailer 7
-
$3,758 AUD
View
Price last confirmed 10 days ago
B
Retailer 8
-
$3,822 AUD
View
B
Retailer 9
-
$3,835 AUD
View
B+
Retailer 10
-
$3,842 AUD
View
B
Retailer 11
-
$3,908 AUD
View
Retailer 12
-
$4,084 AUD
View
Price last confirmed 33 days ago
B
Retailer 13
-
$4,432 AUD
View
B
Retailer 14
-
$4,509 AUD
View
Most Expensive
B
MOH London
EF17A3B57 · Nov 4
$6,345 AUD
£3,433 GBP
View
14 more retailers have this diamond
Prices start from $2,701 AUDSave up to $3,644 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
$2,701 AUD