CaratHunter
Plans
Heart|Natural|GIA

1.53ct H SI1 Heart Natural Diamond

ID • H/SI1 • GIA 7556818792

Certificate GIA 7556818792

Diamond specifications and retailer prices

From $5,909 AUD
As of November 6, 2026
Save $6,322 AUD (52%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $13,790 AUD at NZ Jewellers · As of October 9, 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 7556818792. Listed at 17 retailers as of November 4, 2026, with a 107% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556818792
Dimensions7.65 × 7.07 × 4.61 mm
L/W Ratio1.08
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Needle
Top View
7.65 mm7.07 mm1.53 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556818792
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.3%

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: $7,801 AUD|Low: $5,746 AUD|High: $13,289 AUD|Avg: $8,157 AUD|-0.5%
Retailer 1
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
November 6, 2026
Retailer 15$5,909 AUD
Retailer 3$6,322 AUD
Retailer 2$6,896 AUD
Retailer 5$7,423 AUD
Retailer 4$7,469 AUD
Retailer 7$7,772 AUD
Retailer 1$7,801 AUD
Retailer 8$8,083 AUD
Retailer 12$8,441 AUD
Retailer 13$8,441 AUD
Retailer 6$8,540 AUD
Retailer 14$8,718 AUD
Retailer 9$9,368 AUD
Retailer 10$10,157 AUD
Retailer 11$12,231 AUD

36 data points across 15 retailers

17 retailers$5,909 AUD to $12,231 AUD

A
Cheapest Retailer
-
$5,909 AUD
A
Retailer 2
-
$6,322 AUD
View
B+
Retailer 3
-
$6,896 AUD
View
Final sale: no returns
B+
Retailer 4
-
$7,423 AUD
View
Retailer 5
-
$7,469 AUD
View
Price last confirmed 37 days ago
Retailer 6
-
$7,469 AUD
View
Price last confirmed 28 days ago
B+
Retailer 7
-
$7,801 AUD
View
B+
Retailer 8
-
$8,083 AUD
View
B+
Retailer 9
-
$8,441 AUD
View
B+
Retailer 10
-
$8,441 AUD
View
B+
Retailer 11
-
$8,540 AUD
View
Retailer 12
-
$8,619 AUD
View
Price last confirmed 29 days ago
B
Retailer 13
-
$8,718 AUD
View
B+
Retailer 14
-
$9,368 AUD
View
B
Retailer 15
-
$10,157 AUD
View
B
Retailer 16
-
$12,231 AUD
View
Most Expensive
NZ Jewellers
11f3fb72-b1f9-4ef7-972b-5afac41d633e · Oct 9
$13,790 AUD
$9,475 USD
View
Price last confirmed 28 days ago
16 more retailers have this diamond
Prices start from $5,909 AUDSave up to $6,322 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
$5,909 AUD