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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 $3,348 NZD
As of November 6, 2026
Save $4,517 NZD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,865 NZD 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 $3,348 to $7,865, a $4,517 spread on the same certified stone. MOH London lists it at $7,865. 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: $7,865 NZD|Low: $3,325 NZD|High: $7,982 NZD|Avg: $4,917 NZD|-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$3,348 NZD
Retailer 8$4,066 NZD
Retailer 10$4,068 NZD
Retailer 9$4,154 NZD
Retailer 3$4,501 NZD
Retailer 5$4,762 NZD
Retailer 6$4,843 NZD
Retailer 11$5,062 NZD
Retailer 4$5,493 NZD
Retailer 2$5,588 NZD
MOH London$7,865 NZD

46 data points across 11 retailers

15 retailers$3,348 NZD to $7,865 NZD

B+
Cheapest Retailer
-
$3,348 NZD
B+
Retailer 2
-
$4,066 NZD
View
B+
Retailer 3
-
$4,068 NZD
View
B+
Retailer 4
-
$4,154 NZD
View
Final sale: no returns
B+
Retailer 5
-
$4,394 NZD
View
Retailer 6
-
$4,501 NZD
View
Price last confirmed 8 days ago
Retailer 7
-
$4,658 NZD
View
Price last confirmed 10 days ago
B
Retailer 8
-
$4,737 NZD
View
B
Retailer 9
-
$4,753 NZD
View
B+
Retailer 10
-
$4,762 NZD
View
B
Retailer 11
-
$4,843 NZD
View
Retailer 12
-
$5,062 NZD
View
Price last confirmed 33 days ago
B
Retailer 13
-
$5,493 NZD
View
B
Retailer 14
-
$5,588 NZD
View
Most Expensive
B
MOH London
EF17A3B57 · Nov 4
$7,865 NZD
£3,433 GBP
View
14 more retailers have this diamond
Prices start from $3,348 NZDSave up to $4,517 NZD

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
$3,348 NZD