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Heart|Natural|GIA

1.50ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 7558010777

Certificate GIA 7558010777

Diamond specifications and retailer prices

From $5,485 AUD
HK$30,100 HKD
As of October 30, 2026
Save $5,996 AUD (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $13,429 AUD at NZ Jewellers · As of September 25, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558010777. Listed at 16 retailers as of October 29, 2026, with a 109% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7558010777
Dimensions7.06 × 7.62 × 4.84 mm
L/W Ratio1.08
Girdle conditionFaceted
Top View
7.06 mm7.62 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7558010777
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.6%

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: Oct 30
Current: $6,143 AUD|Low: $5,485 AUD|High: $12,943 AUD|Avg: $7,512 AUD|-0.9%
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
October 31, 2026
Retailer 2$5,485 AUD
Retailer 11$5,674 AUD
Retailer 14$5,955 AUD
Retailer 3$5,995 AUD
Retailer 1$6,143 AUD
Retailer 15$6,305 AUD
Retailer 8$6,447 AUD
Retailer 6$6,634 AUD
Retailer 13$6,704 AUD
Retailer 9$7,129 AUD
Retailer 7$7,694 AUD
Retailer 10$8,100 AUD
Retailer 12$8,653 AUD
Retailer 5$11,481 AUD
Retailer 4$11,796 AUD

28 data points across 15 retailers

16 retailers$5,485 AUD to $11,481 AUD

A
Cheapest Retailer
-
$5,485 AUD
HK$30,100 HKD
A
Retailer 2
-
$5,674 AUD
$3,986 USD
View
A
Retailer 3
-
$5,955 AUD
$4,183 USD
View
A
Retailer 4
-
$5,995 AUD
$4,211 USD
View
Final sale: no returns
A
Retailer 5
-
$6,143 AUD
$4,315 USD
View
A
Retailer 6
-
$6,305 AUD
$4,429 USD
View
Retailer 7
-
$6,447 AUD
€4,313 EUR
View
Price last confirmed 2 days ago
A
Retailer 8
-
$6,634 AUD
$4,660 USD
View
A
Retailer 9
-
$6,704 AUD
$4,709 USD
View
A
Retailer 10
-
$7,129 AUD
£3,943 GBP
View
Retailer 11
-
$7,694 AUD
View
Price last confirmed 22 days ago
A
Retailer 12
-
$8,100 AUD
€5,419 EUR
View
Retailer 13
-
$8,653 AUD
ZAR 98,194 ZAR
View
Price last confirmed 10 days ago
B+
Retailer 14
-
$11,481 AUD
£6,350 GBP
View
Retailer 15
-
$11,796 AUD
$8,286 USD
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
186559ac-fe74-47f2-9c9d-31fc4df15a98 · Sep 25
$13,429 AUD
$9,433 USD
View
Price last confirmed 37 days ago
15 more retailers have this diamond
Prices start from $5,485 AUDSave up to $5,996 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
$5,485 AUD