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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 $3,013 NZD
As of November 6, 2026
Save $3,727 NZD (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,740 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 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 $3,013 to $6,740, a $3,727 spread on the same certified stone. MOH London lists it at $6,740. 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: $6,740 NZD|Low: $3,013 NZD|High: $8,000 NZD|Avg: $4,700 NZD|-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$3,013 NZD
Retailer 6$3,150 NZD
Retailer 8$3,184 NZD
Retailer 9$3,216 NZD
Retailer 5$3,276 NZD
Retailer 18$3,563 NZD
Retailer 17$3,599 NZD
Retailer 4$3,969 NZD
Retailer 10$3,969 NZD
Retailer 19$4,017 NZD
Retailer 3$4,028 NZD
Retailer 7$4,095 NZD
Retailer 2$4,180 NZD
Retailer 15$4,696 NZD
Retailer 14$4,901 NZD
Retailer 11$5,047 NZD
Retailer 12$5,269 NZD
Retailer 16$5,524 NZD
MOH London$6,740 NZD

41 data points across 19 retailers

20 retailers$3,013 NZD to $6,740 NZD

A
Cheapest Retailer
-
$3,013 NZD
B+
Retailer 2
-
$3,150 NZD
View
B+
Retailer 3
-
$3,184 NZD
View
B+
Retailer 4
-
$3,216 NZD
View
Final sale: no returns
B+
Retailer 5
-
$3,276 NZD
View
B+
Retailer 6
-
$3,563 NZD
View
B+
Retailer 7
-
$3,599 NZD
View
B
Retailer 8
-
$3,969 NZD
View
B
Retailer 9
-
$3,969 NZD
View
B
Retailer 10
-
$4,017 NZD
View
B
Retailer 11
-
$4,028 NZD
View
B
Retailer 12
-
$4,095 NZD
View
B
Retailer 13
-
$4,180 NZD
View
Retailer 14
-
$4,488 NZD
View
Price last confirmed 15 days ago
B
Retailer 15
-
$4,696 NZD
View
B
Retailer 16
-
$4,901 NZD
View
Retailer 17
-
$5,047 NZD
View
Price last confirmed 32 days ago
B
Retailer 18
-
$5,269 NZD
View
B
Retailer 19
-
$5,524 NZD
View
Most Expensive
B
MOH London
A8FADB89F · Nov 1
$6,740 NZD
£2,942 GBP
View
19 more retailers have this diamond
Prices start from $3,013 NZDSave up to $3,727 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.

A
1.20ct Heart
$3,013 NZD