CaratHunter
Plans
Heart|Natural|GIA

1.50ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 7553417556

Certificate GIA 7553417556

Diamond specifications and retailer prices

From $6,087 NZD
HK$26,800 HKD
As of November 1, 2026
Save $6,949 NZD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $15,023 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7553417556. Listed at 17 retailers as of November 1, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7553417556
Dimensions6.79 × 7.69 × 4.75 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.79 mm7.69 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7553417556
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.2%

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 1
Current: $7,875 NZD|Low: $6,087 NZD|High: $14,074 NZD|Avg: $8,416 NZD|-6.4%
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
November 2, 2026
Retailer 13$6,087 NZD
Retailer 12$6,201 NZD
Retailer 10$6,508 NZD
Retailer 8$6,939 NZD
Retailer 15$6,956 NZD
Retailer 4$6,972 NZD
Retailer 6$7,186 NZD
Retailer 11$7,417 NZD
Retailer 9$7,789 NZD
Retailer 1$7,875 NZD
Retailer 3$8,013 NZD
Retailer 7$8,826 NZD
Retailer 2$10,271 NZD
Retailer 5$12,952 NZD
Retailer 14$13,036 NZD

23 data points across 15 retailers

17 retailers$6,087 NZD to $13,036 NZD

A
Cheapest Retailer
-
$6,087 NZD
HK$26,800 HKD
A
Retailer 2
-
$6,201 NZD
$3,495 USD
View
A
Retailer 3
-
$6,508 NZD
$3,668 USD
View
A
Retailer 4
-
$6,939 NZD
$3,911 USD
View
Final sale: no returns
A
Retailer 5
-
$6,956 NZD
€3,734 EUR
View
A
Retailer 6
-
$6,972 NZD
$3,929 USD
View
A
Retailer 7
-
$7,186 NZD
$4,050 USD
View
A
Retailer 8
-
$7,417 NZD
$4,180 USD
View
A
Retailer 9
-
$7,789 NZD
£3,457 GBP
View
A
Retailer 10
-
$7,875 NZD
£3,495 GBP
View
B+
Retailer 11
-
$8,013 NZD
$4,516 USD
View
Retailer 12
-
$8,826 NZD
A$7,652 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
$9,005 NZD
A$7,808 AUD
View
B+
Retailer 14
-
$10,271 NZD
ZAR 93,519 ZAR
View
Retailer 15
-
$12,952 NZD
$7,300 USD
View
Price last confirmed 9 days ago
B
Retailer 16
-
$13,036 NZD
£5,785 GBP
View
Most Expensive
NZ Jewellers
c057e1e3-6303-4715-9e07-cd1e1d0fee64 · Sep 25
$15,023 NZD
$8,467 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from $6,087 NZDSave up to $6,949 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
$6,087 NZD