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Heart|Natural|GIA

1.50ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 6545809200

Certificate GIA 6545809200

Diamond specifications and retailer prices

From $6,374 AUD
HK$34,900 HKD
As of November 1, 2026
Save $7,271 AUD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $14,075 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 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 6545809200. Listed at 20 retailers as of October 28, 2026, with a 114% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545809200
Dimensions6.99 × 7.98 × 4.75 mm
L/W Ratio1.14
Top View
6.99 mm7.98 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545809200
Side View
Table 61.0%CrownGirdle: VTN-VTKPavilionCulet: NoneDepth 59.6%

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: $14,075 AUD|Low: $6,319 AUD|High: $14,075 AUD|Avg: $9,092 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 13$6,374 AUD
Retailer 2$6,797 AUD
Retailer 16$7,100 AUD
Retailer 3$7,507 AUD
Retailer 6$7,767 AUD
Retailer 14$7,848 AUD
Retailer 9$7,929 AUD
Retailer 10$8,209 AUD
Retailer 8$8,333 AUD
Retailer 5$8,416 AUD
Retailer 7$8,637 AUD
Retailer 4$9,710 AUD
Retailer 12$10,339 AUD
Retailer 11$12,399 AUD
Retailer 15$13,646 AUD
NZ Jewellers$14,075 AUD

24 data points across 16 retailers

20 retailers$6,374 AUD to $13,646 AUD

A
Cheapest Retailer
-
$6,374 AUD
HK$34,900 HKD
A
Retailer 2
-
$6,797 AUD
₹453,674 INR
View
B+
Retailer 3
-
$7,100 AUD
$4,976 USD
View
A
Retailer 4
-
$7,507 AUD
SGD 7,110 SGD
View
B+
Retailer 5
-
$7,767 AUD
$5,443 USD
View
Final sale: no returns
B+
Retailer 6
-
$7,805 AUD
$5,470 USD
View
B+
Retailer 7
-
$7,848 AUD
$5,500 USD
View
B+
Retailer 8
-
$7,929 AUD
£4,375 GBP
View
B+
Retailer 9
-
$8,209 AUD
£4,530 GBP
View
B+
Retailer 10
-
$8,333 AUD
$5,840 USD
View
Retailer 11
-
$8,416 AUD
$5,898 USD
View
Price last confirmed 17 days ago
Retailer 12
-
$8,416 AUD
$5,898 USD
View
Price last confirmed 15 days ago
Retailer 13
-
$8,416 AUD
$5,898 USD
View
Price last confirmed 16 days ago
Retailer 14
-
$8,481 AUD
View
Price last confirmed 23 days ago
B+
Retailer 15
-
$8,637 AUD
$6,053 USD
View
Retailer 16
-
$9,710 AUD
$6,805 USD
View
Price last confirmed 14 days ago
B+
Retailer 17
-
$10,339 AUD
ZAR 117,060 ZAR
View
B
Retailer 18
-
$12,399 AUD
£6,842 GBP
View
B
Retailer 19
-
$13,646 AUD
£7,530 GBP
View
Most Expensive
NZ Jewellers
977c0f64-286c-435a-9aac-7b2fa8bbbe30 · Oct 18
$14,075 AUD
$9,864 USD
View
Price last confirmed 15 days ago
19 more retailers have this diamond
Prices start from $6,374 AUDSave up to $7,271 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
$6,374 AUD