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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 $4,337 AUD
HK$23,800 HKD
As of November 1, 2026
Save $5,162 AUD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,895 AUD 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: $9,895 AUD|Low: $4,300 AUD|High: $9,997 AUD|Avg: $6,183 AUD|-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$4,337 AUD
Retailer 6$4,377 AUD
Retailer 2$4,626 AUD
Retailer 7$5,389 AUD
Retailer 13$5,417 AUD
Retailer 5$5,680 AUD
Retailer 14$5,680 AUD
Retailer 9$5,810 AUD
Retailer 3$5,889 AUD
Retailer 8$6,426 AUD
Retailer 4$6,553 AUD
Retailer 11$6,981 AUD
Retailer 10$9,499 AUD
NZ Jewellers$9,895 AUD

23 data points across 14 retailers

20 retailers$4,337 AUD to $9,499 AUD

A
Cheapest Retailer
-
$4,337 AUD
HK$23,800 HKD
A
Retailer 2
-
$4,377 AUD
SGD 4,155 SGD
View
A
Retailer 3
-
$4,626 AUD
₹309,474 INR
View
B+
Retailer 4
-
$5,310 AUD
$3,730 USD
View
A
Retailer 5
-
$5,389 AUD
£2,981 GBP
View
A
Retailer 6
-
$5,417 AUD
$3,805 USD
View
B+
Retailer 7
-
$5,461 AUD
SGD 5,184 SGD
View
B+
Retailer 8
-
$5,624 AUD
View
B+
Retailer 9
-
$5,680 AUD
$3,990 USD
View
Retailer 10
-
$5,680 AUD
$3,990 USD
View
Price last confirmed 15 days ago
Retailer 11
-
$5,737 AUD
$4,030 USD
View
Price last confirmed 17 days ago
Retailer 12
-
$5,737 AUD
$4,030 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
$5,810 AUD
£3,214 GBP
View
B+
Retailer 14
-
$5,889 AUD
$4,137 USD
View
Retailer 15
-
$6,200 AUD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
$6,426 AUD
€4,299 EUR
View
Retailer 17
-
$6,553 AUD
$4,603 USD
View
Price last confirmed 14 days ago
B+
Retailer 18
-
$6,981 AUD
ZAR 79,226 ZAR
View
B
Retailer 19
-
$9,499 AUD
£5,254 GBP
View
Most Expensive
NZ Jewellers
f9e3c87c-e509-49a6-942c-5fce45b2c087 · Oct 18
$9,895 AUD
$6,951 USD
View
Price last confirmed 15 days ago
19 more retailers have this diamond
Prices start from $4,337 AUDSave up to $5,162 AUD

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
$4,337 AUD