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Heart|Natural|GIA

1.50ct G SI1 Heart Natural Diamond

ID • G/SI1 • GIA 6542596436

Certificate GIA 6542596436

Diamond specifications and retailer prices

From $7,311 AUD
$5,124 USD
As of November 1, 2026
Save $8,343 AUD (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $15,655 AUD at NZ Jewellers · As of October 30, 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 G 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 6542596436. Listed at 23 retailers as of October 30, 2026, with prices from $7,311 to $15,655, a $8,343 spread on the same certified stone. NZ Jewellers lists it at $15,655. 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
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542596436
Dimensions6.88 × 7.94 × 4.57 mm
L/W Ratio1.15
Top View
6.88 mm7.94 mm1.50 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542596436
Side View
Table 55.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.6%

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: $15,655 AUD|Low: $6,166 AUD|High: $15,655 AUD|Avg: $9,717 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
November 2, 2026
Retailer 11$7,400 AUD
Retailer 12$7,827 AUD
Retailer 3$7,912 AUD
Retailer 7$8,366 AUD
Retailer 6$8,460 AUD
Retailer 4$8,480 AUD
Retailer 5$8,480 AUD
Retailer 14$8,480 AUD
Retailer 15$8,927 AUD
Retailer 2$8,978 AUD
Retailer 13$9,132 AUD
Retailer 16$9,784 AUD
Retailer 10$11,500 AUD
Retailer 8$13,566 AUD
Retailer 9$13,791 AUD
NZ Jewellers$15,655 AUD

40 data points across 16 retailers

23 retailers$7,311 AUD to $15,655 AUD

A
Cheapest Retailer
-
$7,311 AUD
$5,124 USD
A
Retailer 2
-
$7,396 AUD
$5,183 USD
View
B+
Retailer 3
-
$7,400 AUD
$5,186 USD
View
B+
Retailer 4
-
$7,492 AUD
$5,251 USD
View
B+
Retailer 5
-
$7,827 AUD
$5,485 USD
View
Final sale: no returns
B+
Retailer 6
-
$7,912 AUD
$5,545 USD
View
B+
Retailer 7
-
$8,366 AUD
$5,863 USD
View
Retailer 8
-
$8,460 AUD
$5,929 USD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$8,480 AUD
$5,943 USD
View
B+
Retailer 10
-
$8,480 AUD
$5,943 USD
View
B+
Retailer 11
-
$8,480 AUD
$5,943 USD
View
B+
Retailer 12
-
$8,978 AUD
£4,954 GBP
View
Retailer 13
-
$9,132 AUD
View
Price last confirmed 23 days ago
B+
Retailer 14
-
$9,446 AUD
$6,620 USD
View
B+
Retailer 15
-
$9,446 AUD
$6,620 USD
View
B
Retailer 16
-
$9,585 AUD
$6,717 USD
View
B
Retailer 17
-
$9,760 AUD
$6,840 USD
View
Retailer 18
-
$9,784 AUD
$6,857 USD
View
Price last confirmed 56 days ago
B
Retailer 19
-
$9,784 AUD
$6,857 USD
View
B
Retailer 20
-
$11,500 AUD
ZAR 130,203 ZAR
View
B
Retailer 21
-
$13,566 AUD
$9,507 USD
View
B
Retailer 22
-
$13,791 AUD
£7,610 GBP
View
Most Expensive
B
NZ Jewellers
6f710149-8b88-4dd7-95b7-b358db1c13b1 · Oct 30
$15,655 AUD
$10,971 USD
View
22 more retailers have this diamond
Prices start from $7,311 AUDSave up to $8,343 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
$7,311 AUD