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Heart|Natural|GIA

1.50ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 7551128182

Certificate GIA 7551128182

Diamond specifications and retailer prices

From $6,233 NZD
HK$27,400 HKD
As of November 2, 2026
Save $6,283 NZD (50%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $15,077 NZD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7551128182. Listed at 18 retailers as of November 1, 2026, with a 101% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551128182
Dimensions7.91 × 6.67 × 4.72 mm
L/W Ratio1.19
Girdle conditionFaceted
Top View
7.91 mm6.67 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551128182
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 59.7%

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: Nov 2
Current: $7,731 NZD|Low: $6,142 NZD|High: $13,630 NZD|Avg: $8,309 NZD|-4.4%
Retailer 1
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
November 2, 2026
Retailer 10$6,233 NZD
Retailer 15$6,253 NZD
Retailer 14$6,562 NZD
Retailer 12$6,665 NZD
Retailer 7$6,923 NZD
Retailer 2$7,012 NZD
Retailer 6$7,027 NZD
Retailer 4$7,029 NZD
Retailer 9$7,642 NZD
Retailer 1$7,731 NZD
Retailer 13$8,155 NZD
Retailer 8$8,495 NZD
Retailer 3$9,867 NZD
Retailer 11$10,628 NZD
Retailer 16$12,516 NZD
Retailer 5$13,056 NZD

26 data points across 16 retailers

18 retailers$6,233 NZD to $12,516 NZD

A
Cheapest Retailer
-
$6,233 NZD
HK$27,400 HKD
A
Retailer 2
-
$6,253 NZD
$3,518 USD
View
A
Retailer 3
-
$6,562 NZD
$3,692 USD
View
A
Retailer 4
-
$6,665 NZD
$3,750 USD
View
Final sale: no returns
A
Retailer 5
-
$6,923 NZD
$3,895 USD
View
A
Retailer 6
-
$7,012 NZD
€3,757 EUR
View
A
Retailer 7
-
$7,027 NZD
$3,954 USD
View
A
Retailer 8
-
$7,029 NZD
$3,955 USD
View
B+
Retailer 9
-
$7,642 NZD
$4,300 USD
View
B+
Retailer 10
-
$7,731 NZD
$4,350 USD
View
B+
Retailer 11
-
$8,155 NZD
£3,613 GBP
View
Retailer 12
-
$8,495 NZD
A$7,353 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
$9,066 NZD
A$7,848 AUD
View
B
Retailer 14
-
$9,867 NZD
ZAR 89,688 ZAR
View
B
Retailer 15
-
$10,628 NZD
$5,980 USD
View
B
Retailer 16
-
$12,516 NZD
£5,545 GBP
View
Retailer 17
-
$13,056 NZD
$7,346 USD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
40b694ec-f3d7-485e-9867-0a6742bb329e · Sep 25
$15,077 NZD
$8,483 USD
View
Price last confirmed 38 days ago
17 more retailers have this diamond
Prices start from $6,233 NZDSave up to $6,283 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
1.50ct Heart
$6,233 NZD