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Heart|Natural|GIA

1.50ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 2546774228

Certificate GIA 2546774228

Diamond specifications and retailer prices

From $4,564 AUD
As of November 6, 2026
Save $5,394 AUD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,470 AUD at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct 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 2546774228. Listed at 18 retailers as of November 4, 2026, with a 118% 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

1.50
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2546774228
Dimensions7.00 × 7.98 × 4.71 mm
L/W Ratio1.14
Top View
7.00 mm7.98 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2546774228
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.0%

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: $6,047 AUD|Low: $4,545 AUD|High: $10,208 AUD|Avg: $6,121 AUD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 9$4,564 AUD
Retailer 4$4,798 AUD
Retailer 7$5,381 AUD
Retailer 11$5,512 AUD
Retailer 3$5,618 AUD
Retailer 5$5,740 AUD
Retailer 1$6,047 AUD
Retailer 10$6,185 AUD
Retailer 2$6,484 AUD
Retailer 6$7,289 AUD
Retailer 8$9,958 AUD

40 data points across 11 retailers

18 retailers$4,564 AUD to $9,958 AUD

A
Cheapest Retailer
-
$4,564 AUD
A
Retailer 2
-
$4,798 AUD
View
B+
Retailer 3
-
$5,381 AUD
View
B+
Retailer 4
-
$5,512 AUD
View
Final sale: no returns
B+
Retailer 5
-
$5,613 AUD
View
B+
Retailer 6
-
$5,618 AUD
View
B+
Retailer 7
-
$5,740 AUD
View
Retailer 8
-
$6,009 AUD
View
Price last confirmed 22 days ago
Retailer 9
-
$6,009 AUD
View
Price last confirmed 20 days ago
Retailer 10
-
$6,009 AUD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$6,047 AUD
View
B+
Retailer 12
-
$6,185 AUD
View
Retailer 13
-
$6,484 AUD
View
Price last confirmed 34 days ago
B
Retailer 14
-
$6,525 AUD
View
Retailer 15
-
$6,934 AUD
View
Price last confirmed 19 days ago
B+
Retailer 16
-
$7,289 AUD
View
B
Retailer 17
-
$9,958 AUD
View
Most Expensive
NZ Jewellers
b9391674-eda2-4e9c-a91c-562b2cbc015c · Oct 18
$10,470 AUD
$7,194 USD
View
Price last confirmed 20 days ago
17 more retailers have this diamond
Prices start from $4,564 AUDSave up to $5,394 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
1.50ct Heart
$4,564 AUD