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Heart|Natural|GIA

1.00ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 6521239587

Certificate GIA 6521239587

Diamond specifications and retailer prices

From $3,142 NZD
As of November 6, 2026
Save $5,174 NZD (62%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $8,316 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded I 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 6521239587. Listed at 26 retailers as of November 5, 2026, with prices from $3,142 to $8,316, a $5,174 spread on the same certified stone. NZ Jewellers lists it at $8,316. 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

1.00
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6521239587
Dimensions6.24 × 6.98 × 4.05 mm
L/W Ratio1.12
Top View
6.24 mm6.98 mm1.00 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6521239587
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.1%

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 6
Current: $8,316 NZD|Low: $3,142 NZD|High: $8,316 NZD|Avg: $4,721 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$3,142 NZD
Retailer 3$3,224 NZD
Retailer 7$3,256 NZD
Retailer 8$3,476 NZD
Retailer 11$3,770 NZD
Retailer 2$3,859 NZD
Retailer 4$4,322 NZD
Retailer 5$4,854 NZD
Retailer 9$4,890 NZD
Retailer 6$6,950 NZD
NZ Jewellers$8,316 NZD

45 data points across 11 retailers

26 retailers$3,142 NZD to $8,316 NZD

B+
Cheapest Retailer
-
$3,142 NZD
Final sale: no returns
B+
Retailer 2
-
$3,224 NZD
View
B+
Retailer 3
-
$3,256 NZD
View
B+
Retailer 4
-
$3,267 NZD
View
B+
Retailer 5
-
$3,390 NZD
View
B+
Retailer 6
-
$3,476 NZD
View
Retailer 7
-
$3,604 NZD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$3,604 NZD
View
B+
Retailer 9
-
$3,671 NZD
View
B+
Retailer 10
-
$3,714 NZD
View
B
Retailer 11
-
$3,770 NZD
View
B+
Retailer 12
-
$3,859 NZD
View
B
Retailer 13
-
$3,896 NZD
View
B
Retailer 14
-
$3,961 NZD
View
B
Retailer 15
-
$4,156 NZD
View
B
Retailer 16
-
$4,158 NZD
View
B
Retailer 17
-
$4,185 NZD
View
B
Retailer 18
-
$4,185 NZD
View
B
Retailer 19
-
$4,322 NZD
View
B
Retailer 20
-
$4,329 NZD
View
B
Retailer 21
-
$4,582 NZD
View
B
Retailer 22
-
$4,806 NZD
View
B
Retailer 23
-
$4,854 NZD
View
Retailer 24
-
$4,890 NZD
View
Price last confirmed 32 days ago
B
Retailer 25
-
$6,950 NZD
View
Most Expensive
C
NZ Jewellers
a53fdac2-fe6d-4bc3-b8fa-f7d4f974edf7 · Nov 5
$8,316 NZD
$4,610 USD
View
25 more retailers have this diamond
Prices start from $3,142 NZDSave up to $5,174 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+
1.00ct Heart
$3,142 NZD