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Heart|Natural|GIA

1.50ct K SI1 Heart Natural Diamond

VG • K/SI1 • GIA 6481380983

Certificate GIA 6481380983

Diamond specifications and retailer prices

From $3,576 AUD
As of November 6, 2026
Save $4,459 AUD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,074 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6481380983. Listed at 15 retailers as of November 4, 2026, with a 125% 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
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle37.3°
OriginNatural
Grading LabGIA
CertificateGIA 6481380983
Dimensions7.90 × 7.15 × 4.04 mm
L/W Ratio1.10
Top View
7.90 mm7.15 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6481380983
Side View
Table 59.0%CrownGirdle: THN-THKPavilion 37.3°Culet: NoneDepth 56.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,867 AUD|Low: $3,576 AUD|High: $8,374 AUD|Avg: $5,083 AUD|-5.3%
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
November 6, 2026
Retailer 9$3,576 AUD
Retailer 3$3,756 AUD
Retailer 1$3,867 AUD
Retailer 4$3,959 AUD
Retailer 2$4,029 AUD
Retailer 5$4,253 AUD
Retailer 6$4,257 AUD
Retailer 13$4,730 AUD
Retailer 8$4,750 AUD
Retailer 11$4,784 AUD
Retailer 10$5,382 AUD
Retailer 12$5,881 AUD
Retailer 7$7,351 AUD
Retailer 14$8,035 AUD

34 data points across 14 retailers

15 retailers$3,576 AUD to $8,035 AUD

A
Cheapest Retailer
-
$3,576 AUD
A
Retailer 2
-
$3,756 AUD
View
A
Retailer 3
-
$3,867 AUD
View
Final sale: no returns
A
Retailer 4
-
$3,959 AUD
View
A
Retailer 5
-
$4,029 AUD
View
A
Retailer 6
-
$4,253 AUD
View
A
Retailer 7
-
$4,257 AUD
View
B+
Retailer 8
-
$4,730 AUD
View
A
Retailer 9
-
$4,750 AUD
View
A
Retailer 10
-
$4,784 AUD
View
B+
Retailer 11
-
$5,382 AUD
View
B+
Retailer 12
-
$5,881 AUD
View
B
Retailer 13
-
$7,351 AUD
View
B
Retailer 14
-
$8,035 AUD
View
Most Expensive
NZ Jewellers
3ac3cce9-6fdf-4e9f-9ae1-719d6f6c23ef · Sep 25
$9,074 AUD
$6,235 USD
View
Price last confirmed 42 days ago
14 more retailers have this diamond
Prices start from $3,576 AUDSave up to $4,459 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
$3,576 AUD