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Heart|Natural|GIA

1.20ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 6535689578

Certificate GIA 6535689578

Diamond specifications and retailer prices

From $4,135 NZD
As of November 5, 2026
Save $5,517 NZD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,652 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6535689578. Listed at 13 retailers as of October 30, 2026, with prices from $4,135 to $9,652, a $5,517 spread on the same certified stone. NZ Jewellers lists it at $9,652. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6535689578
Dimensions6.34 × 7.14 × 4.48 mm
L/W Ratio1.13
Girdle conditionFaceted
Cert comments
Additional clouds are not shown. pinpoints are not shown.
Key to symbols
Feather, Cloud, Crystal, Needle, Indented Natural, Cavity
Top View
6.34 mm7.14 mm1.20 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535689578
Side View
Table 56.0%CrownGirdle: MED-THPavilionCulet: NoneDepth 62.7%

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 5
Current: $9,652 NZD|Low: $4,048 NZD|High: $9,652 NZD|Avg: $5,499 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 11$4,135 NZD
Retailer 3$4,259 NZD
Retailer 8$4,284 NZD
Retailer 7$4,554 NZD
Retailer 2$4,616 NZD
Retailer 10$4,616 NZD
Retailer 6$4,795 NZD
Retailer 4$4,886 NZD
Retailer 9$5,327 NZD
Retailer 5$8,066 NZD
NZ Jewellers$9,652 NZD

29 data points across 11 retailers

13 retailers$4,135 NZD to $9,652 NZD

A
Cheapest Retailer
-
$4,135 NZD
B+
Retailer 2
-
$4,259 NZD
View
Final sale: no returns
B+
Retailer 3
-
$4,284 NZD
View
B+
Retailer 4
-
$4,304 NZD
View
B+
Retailer 5
-
$4,554 NZD
View
B+
Retailer 6
-
$4,616 NZD
View
B+
Retailer 7
-
$4,616 NZD
View
B+
Retailer 8
-
$4,795 NZD
View
B+
Retailer 9
-
$4,866 NZD
View
B+
Retailer 10
-
$4,886 NZD
View
B+
Retailer 11
-
$5,327 NZD
View
B
Retailer 12
-
$8,066 NZD
View
Most Expensive
B
NZ Jewellers
5af07e36-f9dd-4528-b29f-52dcb76772ba · Oct 30
$9,652 NZD
$5,441 USD
View
12 more retailers have this diamond
Prices start from $4,135 NZDSave up to $5,517 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.

A
1.20ct Heart
$4,135 NZD