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Heart|Natural|GIA

1.50ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 1417574633

Certificate GIA 1417574633

Diamond specifications and retailer prices

From $8,151 NZD
$4,586 USD
As of November 2, 2026
Save $11,558 NZD (59%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $19,708 NZD at NZ Jewellers · As of October 30, 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 1417574633. Listed at 23 retailers as of October 30, 2026, with prices from $8,151 to $19,708, a $11,558 spread on the same certified stone. NZ Jewellers lists it at $19,708. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1417574633
Dimensions6.83 × 8.03 × 4.69 mm
L/W Ratio1.18
Culet sizeNone
Top View
6.83 mm8.03 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1417574633
Side View
Table 62.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 58.4%

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 2
Current: $19,708 NZD|Low: $8,151 NZD|High: $19,708 NZD|Avg: $11,870 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
November 2, 2026
Retailer 5$8,151 NZD
Retailer 2$8,992 NZD
Retailer 9$9,093 NZD
Retailer 4$9,368 NZD
Retailer 10$9,937 NZD
Retailer 15$9,953 NZD
Retailer 3$10,674 NZD
Retailer 7$10,674 NZD
Retailer 16$10,674 NZD
Retailer 18$11,298 NZD
Retailer 17$11,317 NZD
Retailer 14$11,556 NZD
Retailer 19$12,318 NZD
Retailer 6$12,949 NZD
Retailer 11$12,990 NZD
Retailer 13$14,478 NZD
Retailer 8$14,492 NZD
Retailer 12$17,360 NZD
NZ Jewellers$19,708 NZD

34 data points across 19 retailers

23 retailers$8,151 NZD to $19,708 NZD

B+
Cheapest Retailer
-
$8,151 NZD
$4,586 USD
B+
Retailer 2
-
$8,992 NZD
£3,984 GBP
View
B+
Retailer 3
-
$9,093 NZD
$5,116 USD
View
B+
Retailer 4
-
$9,309 NZD
$5,238 USD
View
B+
Retailer 5
-
$9,368 NZD
$5,271 USD
View
B+
Retailer 6
-
$9,686 NZD
$5,450 USD
View
B+
Retailer 7
-
$9,686 NZD
$5,450 USD
View
B+
Retailer 8
-
$9,937 NZD
$5,591 USD
View
B+
Retailer 9
-
$9,953 NZD
$5,600 USD
View
B+
Retailer 10
-
$10,006 NZD
$5,630 USD
View
B
Retailer 11
-
$10,529 NZD
$5,924 USD
View
B+
Retailer 12
-
$10,674 NZD
$6,006 USD
View
B+
Retailer 13
-
$10,674 NZD
$6,006 USD
View
B+
Retailer 14
-
$10,674 NZD
$6,006 USD
View
B+
Retailer 15
-
$11,298 NZD
$6,357 USD
View
Retailer 16
-
$11,317 NZD
£5,014 GBP
View
Price last confirmed 33 days ago
Retailer 17
-
$11,556 NZD
A$10,003 AUD
View
Price last confirmed 29 days ago
Retailer 18
-
$12,318 NZD
$6,931 USD
View
Price last confirmed 57 days ago
B
Retailer 19
-
$12,318 NZD
$6,931 USD
View
Retailer 20
-
$12,990 NZD
$7,309 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
$14,478 NZD
ZAR 131,598 ZAR
View
B
Retailer 22
-
$17,360 NZD
£7,691 GBP
View
Most Expensive
B
NZ Jewellers
4950776f-620c-4179-857b-303f4b41a2c8 · Oct 30
$19,708 NZD
$11,089 USD
View
22 more retailers have this diamond
Prices start from $8,151 NZDSave up to $11,558 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+
1.50ct Heart
$8,151 NZD