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Heart|Natural|GIA

1.50ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 2536685316

Certificate GIA 2536685316

Diamond specifications and retailer prices

From $6,017 AUD
As of November 6, 2026
Save $6,474 AUD (52%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $13,364 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 H 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 2536685316. Listed at 21 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2536685316
Dimensions7.11 × 8.02 × 4.63 mm
L/W Ratio1.13
Top View
7.11 mm8.02 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2536685316
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.7%

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: $13,364 AUD|Low: $6,017 AUD|High: $13,419 AUD|Avg: $8,817 AUD|+2.0%
Queensmith
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 6, 2026
Retailer 16$6,017 AUD
Retailer 2$6,369 AUD
Retailer 13$6,982 AUD
Retailer 12$7,169 AUD
Retailer 4$7,258 AUD
Retailer 9$7,369 AUD
Retailer 10$7,552 AUD
Retailer 5$7,912 AUD
Retailer 6$7,912 AUD
Retailer 3$8,086 AUD
Retailer 15$8,274 AUD
Retailer 8$9,128 AUD
Retailer 11$9,594 AUD
Retailer 14$12,490 AUD
Retailer 7$13,231 AUD
Queensmith$13,364 AUD

26 data points across 16 retailers

21 retailers$6,017 AUD to $12,490 AUD

A
Cheapest Retailer
-
$6,017 AUD
A
Retailer 2
-
$6,369 AUD
View
B+
Retailer 3
-
$6,982 AUD
View
B+
Retailer 4
-
$7,169 AUD
View
B+
Retailer 5
-
$7,258 AUD
View
Final sale: no returns
B+
Retailer 6
-
$7,369 AUD
View
B+
Retailer 7
-
$7,414 AUD
View
B+
Retailer 8
-
$7,415 AUD
View
B+
Retailer 9
-
$7,552 AUD
View
B+
Retailer 10
-
$7,773 AUD
View
Retailer 11
-
$7,912 AUD
View
Price last confirmed 22 days ago
Retailer 12
-
$7,912 AUD
View
Price last confirmed 20 days ago
Retailer 13
-
$7,912 AUD
View
Price last confirmed 22 days ago
Retailer 14
-
$8,056 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$8,086 AUD
View
B+
Retailer 16
-
$8,274 AUD
View
Retailer 17
-
$9,128 AUD
View
Price last confirmed 19 days ago
B+
Retailer 18
-
$9,594 AUD
View
B
Retailer 19
-
$12,490 AUD
View
Retailer 20
-
$13,231 AUD
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
2536685316 · Oct 28
$13,364 AUD
£7,230 GBP
View
Price last confirmed 9 days ago
20 more retailers have this diamond
Prices start from $6,017 AUDSave up to $6,474 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
$6,017 AUD