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Heart|Natural|GIA

1.50ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 6555064318

Certificate GIA 6555064318

Diamond specifications and retailer prices

From $5,405 NZD
HK$23,800 HKD
As of November 1, 2026
Save $6,434 NZD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,333 NZD at NZ Jewellers · As of October 18, 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 6555064318. Listed at 20 retailers as of November 1, 2026, with a 119% 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555064318
Dimensions7.12 × 7.69 × 4.83 mm
L/W Ratio1.08
Top View
7.12 mm7.69 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555064318
Side View
Table 66.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 62.8%

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: $12,333 NZD|Low: $5,360 NZD|High: $12,459 NZD|Avg: $7,706 NZD|-1.0%
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
November 2, 2026
Retailer 12$5,405 NZD
Retailer 6$5,455 NZD
Retailer 2$5,766 NZD
Retailer 7$6,717 NZD
Retailer 13$6,751 NZD
Retailer 5$7,079 NZD
Retailer 14$7,079 NZD
Retailer 9$7,241 NZD
Retailer 3$7,340 NZD
Retailer 8$8,009 NZD
Retailer 4$8,167 NZD
Retailer 11$8,701 NZD
Retailer 10$11,839 NZD
NZ Jewellers$12,333 NZD

23 data points across 14 retailers

20 retailers$5,405 NZD to $11,839 NZD

A
Cheapest Retailer
-
$5,405 NZD
HK$23,800 HKD
A
Retailer 2
-
$5,455 NZD
SGD 4,155 SGD
View
A
Retailer 3
-
$5,766 NZD
₹309,474 INR
View
B+
Retailer 4
-
$6,618 NZD
$3,730 USD
View
A
Retailer 5
-
$6,717 NZD
£2,981 GBP
View
A
Retailer 6
-
$6,751 NZD
$3,805 USD
View
B+
Retailer 7
-
$6,806 NZD
SGD 5,184 SGD
View
B+
Retailer 8
-
$7,010 NZD
A$6,078 AUD
View
B+
Retailer 9
-
$7,079 NZD
$3,990 USD
View
Retailer 10
-
$7,079 NZD
$3,990 USD
View
Price last confirmed 15 days ago
Retailer 11
-
$7,150 NZD
$4,030 USD
View
Price last confirmed 17 days ago
Retailer 12
-
$7,150 NZD
$4,030 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
$7,241 NZD
£3,214 GBP
View
B+
Retailer 14
-
$7,340 NZD
$4,137 USD
View
Retailer 15
-
$7,728 NZD
A$6,701 AUD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
$8,009 NZD
€4,299 EUR
View
Retailer 17
-
$8,167 NZD
$4,603 USD
View
Price last confirmed 14 days ago
B+
Retailer 18
-
$8,701 NZD
ZAR 79,226 ZAR
View
B
Retailer 19
-
$11,839 NZD
£5,254 GBP
View
Most Expensive
NZ Jewellers
f9e3c87c-e509-49a6-942c-5fce45b2c087 · Oct 18
$12,333 NZD
$6,951 USD
View
Price last confirmed 15 days ago
19 more retailers have this diamond
Prices start from $5,405 NZDSave up to $6,434 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
$5,405 NZD