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Heart|Natural|GIA

1.53ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 6545588686

Certificate GIA 6545588686

Diamond specifications and retailer prices

From $5,190 AUD
£2,871 GBP
As of November 2, 2026
Save $4,080 AUD (44%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $9,270 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.53ct natural heart diamond

This 1.53ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545588686. Listed at 6 retailers as of October 30, 2026, with prices from $5,190 to $9,270, a $4,080 spread on the same certified stone. NZ Jewellers lists it at $9,270. 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

1.53
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.19°
Pavilion angle41.59°
OriginNatural
Grading LabGIA
CertificateGIA 6545588686
Dimensions6.98 × 8.11 × 4.71 mm
L/W Ratio1.16
Top View
6.98 mm8.11 mm1.53 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545588686
Side View
Table 62.0%Crown 34.19°Girdle: MED-THKPavilion 41.59°Culet: NoneDepth 58.1%

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: $9,270 AUD|Low: $4,951 AUD|High: $9,458 AUD|Avg: $6,530 AUD|-2.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$4,951 AUD
Retailer 2$5,190 AUD
Retailer 3$5,321 AUD
Retailer 5$5,529 AUD
Retailer 6$5,637 AUD
Retailer 8$6,125 AUD
Retailer 9$6,485 AUD
Retailer 4$8,899 AUD
NZ Jewellers$9,270 AUD

30 data points across 9 retailers

6 retailers$5,190 AUD to $9,270 AUD

A
Cheapest Retailer
-
$5,190 AUD
£2,871 GBP
A
Retailer 2
-
$5,321 AUD
$3,738 USD
View
A
Retailer 3
-
$5,529 AUD
$3,884 USD
View
A
Retailer 4
-
$5,637 AUD
$3,960 USD
View
B+
Retailer 5
-
$8,899 AUD
£4,922 GBP
View
Most Expensive
B
NZ Jewellers
0c94e780-c29f-4b52-9932-ef9750c9ded8 · Oct 30
$9,270 AUD
$6,512 USD
View
5 more retailers have this diamond
Prices start from $5,190 AUDSave up to $4,080 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
1.53ct Heart
$5,190 AUD