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Heart|Natural|GIA

1.51ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 5556650693

Certificate GIA 5556650693

Diamond specifications and retailer prices

From $4,685 NZD
As of November 6, 2026
Save $847 NZD (15%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $5,532 NZD at Michael Trio · As of November 6, 2026
View at Michael Trio

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556650693. Listed at 5 retailers as of November 6, 2026, with prices from $4,685 to $5,532, a $847 spread on the same certified stone. Michael Trio lists it at $5,532. 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

1.51
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556650693
Dimensions6.76 × 8.04 × 4.61 mm
L/W Ratio1.19
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cloud, Crystal, Needle, Indented Natural
Top View
6.76 mm8.04 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556650693
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,532 NZD|Low: $4,178 NZD|High: $6,136 NZD|Avg: $5,111 NZD|-9.9%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2$4,685 NZD
Retailer 5$4,755 NZD
Retailer 4$4,809 NZD
Retailer 3$5,105 NZD
Michael Trio$5,532 NZD

45 data points across 5 retailers

5 retailers$4,685 NZD to $5,532 NZD

A
Cheapest Retailer
-
$4,685 NZD
A
Retailer 2
-
$4,755 NZD
View
A
Retailer 3
-
$4,809 NZD
View
Final sale: no returns
A
Retailer 4
-
$5,105 NZD
View
Most Expensive
A
Michael Trio
3574806415 · Nov 6
$5,532 NZD
SGD 4,144 SGD
View
4 more retailers have this diamond
Prices start from $4,685 NZDSave up to $847 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
1.51ct Heart
$4,685 NZD