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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 $6,301 NZD
As of November 5, 2026
Save $6,288 NZD (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $12,589 NZD 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 $6,301 to $12,589, a $6,288 spread on the same certified stone. MOH London lists it at $12,589. 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: $12,589 NZD|Low: $5,715 NZD|High: $12,724 NZD|Avg: $8,046 NZD|-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$6,301 NZD
Retailer 7$6,609 NZD
Retailer 9$6,725 NZD
Retailer 12$6,828 NZD
Retailer 11$7,143 NZD
Retailer 5$8,011 NZD
Retailer 6$8,262 NZD
Retailer 8$8,374 NZD
Retailer 3$8,709 NZD
Retailer 10$8,940 NZD
Retailer 2$9,647 NZD
MOH London$12,589 NZD

33 data points across 12 retailers

11 retailers$6,301 NZD to $12,589 NZD

B+
Cheapest Retailer
-
$6,301 NZD
B
Retailer 2
-
$6,609 NZD
View
Final sale: no returns
B
Retailer 3
-
$6,725 NZD
View
B
Retailer 4
-
$6,828 NZD
View
B
Retailer 5
-
$7,143 NZD
View
B
Retailer 6
-
$8,011 NZD
View
B
Retailer 7
-
$8,262 NZD
View
Retailer 8
-
$8,374 NZD
View
Price last confirmed 42 days ago
Retailer 9
-
$8,940 NZD
View
Price last confirmed 25 days ago
B
Retailer 10
-
$9,647 NZD
View
Most Expensive
B
MOH London
586FAAB78 · Nov 1
$12,589 NZD
£5,495 GBP
View
10 more retailers have this diamond
Prices start from $6,301 NZDSave up to $6,288 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
$6,301 NZD