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Heart|Natural|GIA

1.51ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 5546654705

Certificate GIA 5546654705

Diamond specifications and retailer prices

From $9,141 NZD
$5,152 USD
As of October 31, 2026
Save $7,944 NZD (46%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $17,085 NZD at NZ Jewellers · As of October 30, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546654705. Listed at 9 retailers as of October 30, 2026, with prices from $9,141 to $17,085, a $7,944 spread on the same certified stone. NZ Jewellers lists it at $17,085. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.76°
Pavilion angle43.09°
OriginNatural
Grading LabGIA
CertificateGIA 5546654705
Dimensions6.57 × 7.83 × 4.99 mm
L/W Ratio1.19
Top View
6.57 mm7.83 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5546654705
Side View
Table 63.0%Crown 38.76°Girdle: THK-VTKPavilion 43.09°Culet: NoneDepth 63.7%

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: Oct 31
Current: $17,085 NZD|Low: $9,141 NZD|High: $17,484 NZD|Avg: $11,687 NZD|-2.3%
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
November 1, 2026
Retailer 11$9,141 NZD
Retailer 2$9,558 NZD
Retailer 7$9,830 NZD
Retailer 9$10,215 NZD
Retailer 10$10,215 NZD
Retailer 8$10,270 NZD
Retailer 12$10,410 NZD
Retailer 13$10,770 NZD
Retailer 3$11,243 NZD
Retailer 5$12,276 NZD
Retailer 4$13,291 NZD
Retailer 6$15,131 NZD
NZ Jewellers$17,085 NZD

36 data points across 13 retailers

9 retailers$9,141 NZD to $17,085 NZD

A
Cheapest Retailer
-
$9,141 NZD
$5,152 USD
A
Retailer 2
-
$9,558 NZD
£4,242 GBP
View
A
Retailer 3
-
$9,830 NZD
$5,540 USD
View
A
Retailer 4
-
$10,215 NZD
$5,757 USD
View
A
Retailer 5
-
$10,215 NZD
$5,757 USD
View
Retailer 6
-
$10,270 NZD
A$8,905 AUD
View
Price last confirmed 14 days ago
A
Retailer 7
-
$10,410 NZD
$5,867 USD
View
B+
Retailer 8
-
$15,131 NZD
£6,715 GBP
View
Most Expensive
B
NZ Jewellers
2000c503-6131-405e-84a0-61da46a0ca3b · Oct 30
$17,085 NZD
$9,629 USD
View
8 more retailers have this diamond
Prices start from $9,141 NZDSave up to $7,944 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
$9,141 NZD