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Heart|Natural|GIA

1.50ct D SI2 Heart Natural Diamond

ID • D/SI2 • GIA 6531397919

Certificate GIA 6531397919

Diamond specifications and retailer prices

From $5,570 AUD
As of November 6, 2026
Save $6,002 AUD (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $12,855 AUD at Queensmith · As of October 28, 2026
View at Queensmith

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6531397919. Listed at 16 retailers as of November 4, 2026, with a 108% 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6531397919
Dimensions7.89 × 6.92 × 4.84 mm
L/W Ratio1.14
Top View
7.89 mm6.92 mm1.50 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6531397919
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.4%

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: $12,855 AUD|Low: $5,532 AUD|High: $13,068 AUD|Avg: $8,168 AUD|-1.6%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$5,570 AUD
Retailer 2$5,926 AUD
Retailer 7$6,724 AUD
Retailer 4$7,082 AUD
Retailer 10$7,091 AUD
Retailer 3$7,174 AUD
Retailer 8$7,364 AUD
Retailer 9$7,505 AUD
Retailer 5$11,572 AUD
Queensmith$12,855 AUD

41 data points across 10 retailers

16 retailers$5,570 AUD to $11,572 AUD

A
Cheapest Retailer
-
$5,570 AUD
A
Retailer 2
-
$5,926 AUD
View
A
Retailer 3
-
$6,724 AUD
View
Final sale: no returns
A
Retailer 4
-
$7,082 AUD
View
Retailer 5
-
$7,091 AUD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$7,174 AUD
View
Retailer 7
-
$7,286 AUD
View
Price last confirmed 21 days ago
Retailer 8
-
$7,286 AUD
View
Price last confirmed 21 days ago
Retailer 9
-
$7,286 AUD
View
Price last confirmed 19 days ago
A
Retailer 10
-
$7,322 AUD
View
A
Retailer 11
-
$7,364 AUD
View
A
Retailer 12
-
$7,505 AUD
View
Retailer 13
-
$8,406 AUD
View
Price last confirmed 18 days ago
B+
Retailer 14
-
$11,572 AUD
View
Retailer 15
-
$12,694 AUD
View
Price last confirmed 19 days ago
Most Expensive
Queensmith
6531397919 · Oct 28
$12,855 AUD
£6,955 GBP
View
Price last confirmed 9 days ago
15 more retailers have this diamond
Prices start from $5,570 AUDSave up to $6,002 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
$5,570 AUD