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Heart|Natural|GIA

1.51ct J SI1 Heart Natural Diamond

GD • J/SI1 • GIA 7556434354

Certificate GIA 7556434354

Diamond specifications and retailer prices

From $6,081 NZD
As of November 6, 2026
Save $12,768 NZD (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $18,849 NZD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two 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 7556434354. Listed at 19 retailers as of November 3, 2026, with prices from $6,081 to $18,849, a $12,768 spread on the same certified stone. NZ Jewellers lists it at $18,849. 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

1.51
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556434354
Dimensions6.92 × 8.15 × 4.81 mm
L/W Ratio1.18
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
6.92 mm8.15 mm1.51 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556434354
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.0%

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 6
Current: $18,849 NZD|Low: $6,081 NZD|High: $18,849 NZD|Avg: $10,710 NZD
NZ Jewellers
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
Retailer 20
November 6, 2026
Retailer 2$6,081 NZD
Retailer 15$6,433 NZD
Retailer 13$6,945 NZD
Retailer 14$7,180 NZD
Retailer 7$7,421 NZD
Retailer 12$7,829 NZD
Retailer 4$9,146 NZD
Retailer 3$9,503 NZD
Retailer 9$9,543 NZD
Retailer 5$10,210 NZD
Retailer 6$10,210 NZD
Retailer 20$10,210 NZD
Retailer 16$10,704 NZD
Retailer 19$11,199 NZD
Retailer 11$11,779 NZD
Retailer 10$12,427 NZD
Retailer 8$12,512 NZD
Retailer 18$13,845 NZD
Retailer 17$16,601 NZD
NZ Jewellers$18,849 NZD

43 data points across 20 retailers

19 retailers$6,081 NZD to $18,849 NZD

B+
Cheapest Retailer
-
$6,081 NZD
B+
Retailer 2
-
$6,433 NZD
View
B+
Retailer 3
-
$6,945 NZD
View
B+
Retailer 4
-
$7,180 NZD
View
B
Retailer 5
-
$7,421 NZD
View
B
Retailer 6
-
$9,146 NZD
View
B
Retailer 7
-
$9,503 NZD
View
B
Retailer 8
-
$9,543 NZD
View
B
Retailer 9
-
$10,210 NZD
View
B
Retailer 10
-
$10,210 NZD
View
Retailer 11
-
$10,210 NZD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$10,704 NZD
View
Retailer 13
-
$11,199 NZD
View
Price last confirmed 34 days ago
B
Retailer 14
-
$11,779 NZD
View
Retailer 15
-
$12,427 NZD
View
Price last confirmed 15 days ago
C
Retailer 16
-
$12,512 NZD
View
C
Retailer 17
-
$13,845 NZD
View
C
Retailer 18
-
$16,601 NZD
View
Most Expensive
C
NZ Jewellers
4c887f89-ae48-4848-b060-e48d0b93199a · Nov 3
$18,849 NZD
$10,449 USD
View
18 more retailers have this diamond
Prices start from $6,081 NZDSave up to $12,768 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+
1.51ct Heart
$6,081 NZD