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Heart|Natural|GIA

1.53ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 6531604900

Certificate GIA 6531604900

Diamond specifications and retailer prices

From $5,906 AUD
As of November 6, 2026
Save $7,251 AUD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $13,157 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 6531604900. Listed at 19 retailers as of November 5, 2026, with prices from $5,906 to $13,157, a $7,251 spread on the same certified stone. NZ Jewellers lists it at $13,157. 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
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6531604900
Dimensions7.01 × 7.80 × 4.66 mm
L/W Ratio1.11
Top View
7.01 mm7.80 mm1.53 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531604900
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.7%

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: $13,157 AUD|Low: $5,906 AUD|High: $13,157 AUD|Avg: $8,313 AUD
NZ Jewellers
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
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 2$5,906 AUD
Retailer 9$6,263 AUD
Retailer 6$6,861 AUD
Retailer 17$7,150 AUD
Retailer 4$7,372 AUD
Retailer 10$7,372 AUD
Retailer 11$7,555 AUD
Retailer 14$7,858 AUD
Retailer 5$7,866 AUD
Retailer 16$7,866 AUD
Retailer 7$8,077 AUD
Retailer 8$8,089 AUD
Retailer 15$8,235 AUD
Retailer 3$9,076 AUD
Retailer 12$9,597 AUD
Retailer 13$12,495 AUD
NZ Jewellers$13,157 AUD

28 data points across 17 retailers

19 retailers$5,906 AUD to $13,157 AUD

A
Cheapest Retailer
-
$5,906 AUD
A
Retailer 2
-
$6,263 AUD
View
Final sale: no returns
A
Retailer 3
-
$6,469 AUD
View
B+
Retailer 4
-
$6,861 AUD
View
B+
Retailer 5
-
$7,150 AUD
View
B+
Retailer 6
-
$7,372 AUD
View
B+
Retailer 7
-
$7,372 AUD
View
B+
Retailer 8
-
$7,555 AUD
View
B+
Retailer 9
-
$7,858 AUD
View
B+
Retailer 10
-
$7,866 AUD
View
B+
Retailer 11
-
$7,866 AUD
View
Retailer 12
-
$7,866 AUD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$8,077 AUD
View
B+
Retailer 14
-
$8,089 AUD
View
B+
Retailer 15
-
$8,235 AUD
View
B+
Retailer 16
-
$9,076 AUD
View
B+
Retailer 17
-
$9,597 AUD
View
B
Retailer 18
-
$12,495 AUD
View
Most Expensive
B
NZ Jewellers
9c649c18-a3d4-4981-b2a8-6edf7e1e03cf · Nov 5
$13,157 AUD
$9,040 USD
View
18 more retailers have this diamond
Prices start from $5,906 AUDSave up to $7,251 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
$5,906 AUD