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Heart|Natural|GIA

1.53ct J SI1 Heart Natural Diamond

ID • J/SI1 • GIA 2554629221

Certificate GIA 2554629221

Diamond specifications and retailer prices

From $4,378 AUD
$3,075 USD
As of November 1, 2026
Save $5,234 AUD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $11,056 AUD at NZ Jewellers · As of September 25, 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 J 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 2554629221. Listed at 17 retailers as of November 1, 2026, with a 120% 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
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554629221
Dimensions6.66 × 7.92 × 4.74 mm
L/W Ratio1.19
Girdle conditionFaceted
Top View
6.66 mm7.92 mm1.53 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554629221
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.8%

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 1
Current: $4,410 AUD|Low: $4,322 AUD|High: $10,072 AUD|Avg: $6,158 AUD|-2.8%
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 2, 2026
Retailer 14$4,378 AUD
Retailer 1$4,410 AUD
Retailer 11$4,640 AUD
Retailer 4$4,709 AUD
Retailer 9$4,872 AUD
Retailer 6$5,061 AUD
Retailer 13$5,146 AUD
Retailer 12$5,438 AUD
Retailer 10$5,961 AUD
Retailer 3$5,986 AUD
Retailer 7$6,682 AUD
Retailer 2$7,163 AUD
Retailer 8$7,844 AUD
Retailer 5$9,085 AUD
Retailer 15$9,611 AUD

30 data points across 15 retailers

17 retailers$4,378 AUD to $9,611 AUD

A
Cheapest Retailer
-
$4,378 AUD
$3,075 USD
A
Retailer 2
-
$4,410 AUD
HK$24,200 HKD
View
A
Retailer 3
-
$4,640 AUD
$3,259 USD
View
A
Retailer 4
-
$4,709 AUD
$3,308 USD
View
A
Retailer 5
-
$4,872 AUD
$3,422 USD
View
Final sale: no returns
A
Retailer 6
-
$5,061 AUD
$3,555 USD
View
A
Retailer 7
-
$5,146 AUD
View
B+
Retailer 8
-
$5,438 AUD
$3,820 USD
View
B+
Retailer 9
-
$5,961 AUD
£3,297 GBP
View
B+
Retailer 10
-
$5,986 AUD
$4,205 USD
View
B+
Retailer 11
-
$6,290 AUD
View
Retailer 12
-
$6,682 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
$7,163 AUD
ZAR 81,284 ZAR
View
B
Retailer 14
-
$7,844 AUD
$5,510 USD
View
B
Retailer 15
-
$9,085 AUD
$6,382 USD
View
B
Retailer 16
-
$9,611 AUD
£5,316 GBP
View
Most Expensive
NZ Jewellers
82c7d4b0-621c-4edc-a9b1-cac6e51f1904 · Sep 25
$11,056 AUD
$7,766 USD
View
Price last confirmed 38 days ago
16 more retailers have this diamond
Prices start from $4,378 AUDSave up to $5,234 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
$4,378 AUD