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Heart|Natural|GIA

1.53ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 2537555541

Certificate GIA 2537555541

Diamond specifications and retailer prices

From $6,215 AUD
As of November 6, 2026
Save $6,069 AUD (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,284 AUD at NZ Jewellers · As of November 5, 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 H 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 2537555541. Listed at 15 retailers as of November 5, 2026, with prices from $6,215 to $12,284, a $6,069 spread on the same certified stone. NZ Jewellers lists it at $12,284. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.58°
Pavilion angle39.08°
OriginNatural
Grading LabGIA
CertificateGIA 2537555541
Dimensions7.09 × 8.12 × 4.49 mm
L/W Ratio1.15
Top View
7.09 mm8.12 mm1.53 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537555541
Side View
Table 55.0%Crown 35.58°Girdle: STK-VTKPavilion 39.08°Culet: NoneDepth 55.3%

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 6
Current: $6,883 AUD|Low: $6,215 AUD|High: $11,838 AUD|Avg: $7,622 AUD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$6,215 AUD
Retailer 6$6,407 AUD
Retailer 7$6,778 AUD
Retailer 1$6,883 AUD
Retailer 10$6,906 AUD
Retailer 3$7,232 AUD
Retailer 2$7,344 AUD
Retailer 8$7,404 AUD
Retailer 4$8,961 AUD
Retailer 5$11,666 AUD

41 data points across 10 retailers

15 retailers$6,215 AUD to $12,284 AUD

A
Cheapest Retailer
-
$6,215 AUD
A
Retailer 2
-
$6,407 AUD
View
B+
Retailer 3
-
$6,778 AUD
View
Final sale: no returns
A
Retailer 4
-
$6,883 AUD
View
B+
Retailer 5
-
$6,906 AUD
View
B+
Retailer 6
-
$7,232 AUD
View
Retailer 7
-
$7,344 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$7,344 AUD
View
B+
Retailer 9
-
$7,344 AUD
View
Retailer 10
-
$7,404 AUD
View
Price last confirmed 29 days ago
B+
Retailer 11
-
$7,712 AUD
View
B+
Retailer 12
-
$8,475 AUD
View
B+
Retailer 13
-
$8,961 AUD
View
B
Retailer 14
-
$11,666 AUD
View
Most Expensive
B
NZ Jewellers
54f1792d-dd47-4831-9e9d-15aaa947d6c0 · Nov 5
$12,284 AUD
$8,440 USD
View
14 more retailers have this diamond
Prices start from $6,215 AUDSave up to $6,069 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
$6,215 AUD