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Heart|Natural|GIA

1.50ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 6441485712

Certificate GIA 6441485712

Diamond specifications and retailer prices

From $3,387 AUD
$2,379 USD
As of November 1, 2026
Save $4,350 AUD (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,049 AUD at NZ Jewellers · As of October 24, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6441485712. Listed at 13 retailers as of October 26, 2026, with a 128% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.94°
Pavilion angle38.3°
OriginNatural
Grading LabGIA
CertificateGIA 6441485712
Dimensions6.84 × 7.82 × 4.63 mm
L/W Ratio1.14
Top View
6.84 mm7.82 mm1.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6441485712
Side View
Table 60.0%Crown 35.94°Girdle: MED-THKPavilion 38.3°Culet: NoneDepth 59.2%

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: $8,049 AUD|Low: $3,220 AUD|High: $8,049 AUD|Avg: $4,979 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
October 27, 2026
Retailer 14$3,387 AUD
Retailer 17$3,623 AUD
Retailer 3$3,738 AUD
Retailer 15$3,864 AUD
Retailer 4$4,185 AUD
Retailer 11$4,185 AUD
Retailer 12$4,346 AUD
Retailer 16$4,560 AUD
Retailer 10$4,626 AUD
Retailer 6$4,812 AUD
Retailer 7$4,812 AUD
Retailer 2$4,876 AUD
Retailer 5$4,968 AUD
Retailer 9$6,058 AUD
Retailer 8$6,346 AUD
Retailer 13$7,736 AUD
NZ Jewellers$8,049 AUD

34 data points across 17 retailers

13 retailers$3,387 AUD to $7,736 AUD

A
Cheapest Retailer
-
$3,387 AUD
$2,379 USD
A
Retailer 2
-
$3,623 AUD
$2,545 USD
View
A
Retailer 3
-
$3,738 AUD
$2,626 USD
View
A
Retailer 4
-
$4,185 AUD
$2,940 USD
View
Retailer 5
-
$4,346 AUD
$3,053 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$4,560 AUD
$3,203 USD
View
A
Retailer 7
-
$4,626 AUD
£2,559 GBP
View
B+
Retailer 8
-
$4,812 AUD
$3,380 USD
View
B+
Retailer 9
-
$4,812 AUD
$3,380 USD
View
B+
Retailer 10
-
$4,876 AUD
$3,425 USD
View
B+
Retailer 11
-
$4,968 AUD
$3,490 USD
View
B
Retailer 12
-
$7,736 AUD
£4,279 GBP
View
Most Expensive
NZ Jewellers
7e745e99-e91b-4681-9880-e0dd1fe472f5 · Oct 24
$8,049 AUD
$5,654 USD
View
Price last confirmed 9 days ago
12 more retailers have this diamond
Prices start from $3,387 AUDSave up to $4,350 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
$3,387 AUD