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Heart|Natural|GIA

1.50ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 6552145759

Certificate GIA 6552145759

Diamond specifications and retailer prices

From $5,964 AUD
As of November 6, 2026
Save $1,466 AUD (20%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,430 AUD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552145759. Listed at 7 retailers as of November 5, 2026, with prices from $5,964 to $7,430, a $1,466 spread on the same certified stone. Blue Nile lists it at $7,430. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6552145759
Dimensions6.66 × 7.95 × 4.77 mm
L/W Ratio1.19
Top View
6.66 mm7.95 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6552145759
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.0%

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: $7,430 AUD|Low: $5,762 AUD|High: $8,246 AUD|Avg: $6,816 AUD|-9.9%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$5,964 AUD
Retailer 5$6,244 AUD
Retailer 4$6,458 AUD
Retailer 7$6,575 AUD
Retailer 3$6,597 AUD
Retailer 6$6,763 AUD
Blue Nile$7,430 AUD

44 data points across 7 retailers

7 retailers$5,964 AUD to $7,430 AUD

A
Cheapest Retailer
-
$5,964 AUD
A
Retailer 2
-
$6,244 AUD
View
A
Retailer 3
-
$6,458 AUD
View
Final sale: no returns
A
Retailer 4
-
$6,575 AUD
View
A
Retailer 5
-
$6,597 AUD
View
A
Retailer 6
-
$6,763 AUD
View
Most Expensive
A
Blue Nile
29008789 · Nov 5
$7,430 AUD
$5,105 USD
View
6 more retailers have this diamond
Prices start from $5,964 AUDSave up to $1,466 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
$5,964 AUD