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Heart|Natural|GIA

1.50ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 2556323952

Certificate GIA 2556323952

Diamond specifications and retailer prices

From $5,849 AUD
As of November 6, 2026
Save $1,134 AUD (16%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $6,983 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556323952. Listed at 7 retailers as of November 5, 2026, with prices from $5,849 to $6,983, a $1,134 spread on the same certified stone. Blue Nile lists it at $6,983. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556323952
Dimensions7.06 × 7.94 × 4.70 mm
L/W Ratio1.12
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Indented Natural, Needle
Top View
7.06 mm7.94 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556323952
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.1%

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: $6,983 AUD|Low: $5,420 AUD|High: $7,981 AUD|Avg: $6,548 AUD|-12.5%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$5,849 AUD
Retailer 4$6,050 AUD
Retailer 2$6,092 AUD
Retailer 7$6,159 AUD
Retailer 3$6,286 AUD
Retailer 6$6,321 AUD
Blue Nile$6,983 AUD

42 data points across 7 retailers

7 retailers$5,849 AUD to $6,983 AUD

A
Cheapest Retailer
-
$5,849 AUD
A
Retailer 2
-
$6,050 AUD
View
Final sale: no returns
A
Retailer 3
-
$6,092 AUD
View
A
Retailer 4
-
$6,159 AUD
View
A
Retailer 5
-
$6,286 AUD
View
A
Retailer 6
-
$6,321 AUD
View
Most Expensive
A
Blue Nile
29193047 · Nov 5
$6,983 AUD
$4,798 USD
View
6 more retailers have this diamond
Prices start from $5,849 AUDSave up to $1,134 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
$5,849 AUD