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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 $4,993 AUD
HK$27,400 HKD
As of November 2, 2026
Save $5,032 AUD (50%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,076 AUD 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: $4,993 AUD|Low: $4,920 AUD|High: $10,918 AUD|Avg: $6,630 AUD|-4.2%
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 1$4,993 AUD
Retailer 14$5,008 AUD
Retailer 12$5,256 AUD
Retailer 10$5,339 AUD
Retailer 7$5,545 AUD
Retailer 16$5,616 AUD
Retailer 6$5,629 AUD
Retailer 4$5,630 AUD
Retailer 13$6,121 AUD
Retailer 3$6,166 AUD
Retailer 11$6,532 AUD
Retailer 8$6,804 AUD
Retailer 2$7,903 AUD
Retailer 9$8,513 AUD
Retailer 15$10,025 AUD
Retailer 5$10,457 AUD

26 data points across 16 retailers

18 retailers$4,993 AUD to $10,025 AUD

A
Cheapest Retailer
-
$4,993 AUD
HK$27,400 HKD
A
Retailer 2
-
$5,008 AUD
$3,518 USD
View
A
Retailer 3
-
$5,256 AUD
$3,692 USD
View
A
Retailer 4
-
$5,339 AUD
$3,750 USD
View
Final sale: no returns
A
Retailer 5
-
$5,545 AUD
$3,895 USD
View
A
Retailer 6
-
$5,616 AUD
€3,757 EUR
View
A
Retailer 7
-
$5,629 AUD
$3,954 USD
View
A
Retailer 8
-
$5,630 AUD
$3,955 USD
View
B+
Retailer 9
-
$6,121 AUD
$4,300 USD
View
B+
Retailer 10
-
$6,166 AUD
$4,331 USD
View
B+
Retailer 11
-
$6,532 AUD
£3,613 GBP
View
Retailer 12
-
$6,804 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
$7,262 AUD
View
B
Retailer 14
-
$7,903 AUD
ZAR 89,688 ZAR
View
B
Retailer 15
-
$8,513 AUD
$5,980 USD
View
B
Retailer 16
-
$10,025 AUD
£5,545 GBP
View
Retailer 17
-
$10,457 AUD
$7,346 USD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
40b694ec-f3d7-485e-9867-0a6742bb329e · Sep 25
$12,076 AUD
$8,483 USD
View
Price last confirmed 38 days ago
17 more retailers have this diamond
Prices start from $4,993 AUDSave up to $5,032 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
$4,993 AUD