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Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

GD • J/SI1 • GIA 5376670316

Certificate GIA 5376670316

Diamond specifications and retailer prices

From $4,237 NZD
As of November 6, 2026
Save $5,771 NZD (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $10,008 NZD at NZ Jewellers · As of November 5, 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 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 5376670316. Listed at 17 retailers as of November 5, 2026, with prices from $4,237 to $10,008, a $5,771 spread on the same certified stone. NZ Jewellers lists it at $10,008. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5376670316
Dimensions7.23 × 6.54 × 4.05 mm
L/W Ratio1.11
Top View
7.23 mm6.54 mm1.20 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5376670316
Side View
Table 60.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 56.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,699 NZD|Low: $4,623 NZD|High: $9,489 NZD|Avg: $6,129 NZD|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 1$4,699 NZD
Retailer 9$5,145 NZD
Retailer 7$5,174 NZD
Retailer 6$5,186 NZD
Retailer 2$5,439 NZD
Retailer 8$6,159 NZD
Retailer 3$6,687 NZD
Retailer 4$7,012 NZD
Retailer 5$9,351 NZD

38 data points across 9 retailers

17 retailers$4,237 NZD to $10,008 NZD

B
Cheapest Retailer
-
$4,237 NZD
B
Retailer 2
-
$4,699 NZD
View
B
Retailer 3
-
$5,145 NZD
View
B
Retailer 4
-
$5,174 NZD
View
B
Retailer 5
-
$5,186 NZD
View
B
Retailer 6
-
$5,439 NZD
View
B
Retailer 7
-
$5,574 NZD
View
Retailer 8
-
$5,745 NZD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$5,745 NZD
View
B
Retailer 10
-
$5,965 NZD
View
B
Retailer 11
-
$6,002 NZD
View
Retailer 12
-
$6,159 NZD
View
Price last confirmed 34 days ago
C
Retailer 13
-
$6,628 NZD
View
B
Retailer 14
-
$6,687 NZD
View
B
Retailer 15
-
$7,012 NZD
View
C
Retailer 16
-
$9,351 NZD
View
Most Expensive
C
NZ Jewellers
c66b0f12-fa59-4932-96c8-93ffe99f7b90 · Nov 5
$10,008 NZD
$5,548 USD
View
16 more retailers have this diamond
Prices start from $4,237 NZDSave up to $5,771 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
$4,237 NZD