CaratHunter
Plans
Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

GD • J/SI1 • GIA 6361749218

Certificate GIA 6361749218

Diamond specifications and retailer prices

From $3,853 NZD
As of November 7, 2026
Save $4,882 NZD (56%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,735 NZD at MOH London · As of November 2, 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 6361749218. Listed at 17 retailers as of November 2, 2026, with prices from $3,853 to $8,735, a $4,882 spread on the same certified stone. MOH London lists it at $8,735. 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 6361749218
Dimensions6.14 × 5.81 × 3.95 mm
L/W Ratio1.06
Top View
6.14 mm5.81 mm1.20 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6361749218
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.0%

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 7
Current: $8,735 NZD|Low: $3,712 NZD|High: $8,841 NZD|Avg: $5,190 NZD
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
November 7, 2026
Retailer 2$3,853 NZD
Retailer 12$4,080 NZD
Retailer 8$4,104 NZD
Retailer 4$4,356 NZD
Retailer 11$4,483 NZD
Retailer 9$4,517 NZD
Retailer 3$4,595 NZD
Retailer 10$4,602 NZD
Retailer 13$5,121 NZD
Retailer 5$5,585 NZD
Retailer 6$5,803 NZD
Retailer 7$6,085 NZD
MOH London$8,735 NZD

46 data points across 13 retailers

17 retailers$3,853 NZD to $8,735 NZD

B+
Cheapest Retailer
-
$3,853 NZD
B
Retailer 2
-
$4,059 NZD
View
B
Retailer 3
-
$4,059 NZD
View
B
Retailer 4
-
$4,080 NZD
View
B+
Retailer 5
-
$4,104 NZD
View
B
Retailer 6
-
$4,203 NZD
View
B
Retailer 7
-
$4,356 NZD
View
B
Retailer 8
-
$4,483 NZD
View
Retailer 9
-
$4,517 NZD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$4,595 NZD
View
B
Retailer 11
-
$4,602 NZD
View
Final sale: no returns
B
Retailer 12
-
$5,085 NZD
View
B
Retailer 13
-
$5,121 NZD
View
Retailer 14
-
$5,585 NZD
View
Price last confirmed 31 days ago
B
Retailer 15
-
$5,803 NZD
View
B
Retailer 16
-
$6,085 NZD
View
Most Expensive
C
MOH London
D0F9EF9C1 · Nov 2
$8,735 NZD
£3,813 GBP
View
16 more retailers have this diamond
Prices start from $3,853 NZDSave up to $4,882 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
$3,853 NZD