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Heart|Natural|GIA

1.50ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 1559797631

Certificate GIA 1559797631

Diamond specifications and retailer prices

From $8,720 AUD
SGD 8,277 SGD
As of October 31, 2026
Save $346 AUD (4%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $16,502 AUD at NZ Jewellers · As of October 21, 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 1559797631. Listed at 19 retailers as of October 31, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1559797631
Dimensions7.22 × 7.95 × 4.65 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.22 mm7.95 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1559797631
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 58.6%

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 31
Current: $16,502 AUD|Low: $7,343 AUD|High: $16,502 AUD|Avg: $10,397 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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 22, 2026
Retailer 8$7,343 AUD
Retailer 17$7,892 AUD
Retailer 4$8,251 AUD
Retailer 10$8,442 AUD
Retailer 5$8,720 AUD
Retailer 7$9,107 AUD
Retailer 6$9,108 AUD
Retailer 14$9,249 AUD
Retailer 15$9,509 AUD
Retailer 11$9,666 AUD
Retailer 12$9,738 AUD
Retailer 16$9,867 AUD
Retailer 3$10,019 AUD
Retailer 9$10,095 AUD
Retailer 18$10,701 AUD
Retailer 13$11,385 AUD
Retailer 20$11,978 AUD
Retailer 19$14,614 AUD
Retailer 2$14,753 AUD
NZ Jewellers$16,502 AUD

22 data points across 20 retailers

19 retailers$8,720 AUD to $9,065 AUD

Retailer 1
-
$7,343 AUD
HK$40,300 HKD
Price last confirmed 12 days ago
Retailer 2
-
$7,892 AUD
₹527,957 INR
View
Price last confirmed 14 days ago
Retailer 3
-
$8,251 AUD
$5,796 USD
View
Price last confirmed 18 days ago
Retailer 4
-
$8,442 AUD
SGD 8,014 SGD
View
Price last confirmed 19 days ago
A
Retailer 5
-
$8,720 AUD
SGD 8,277 SGD
View
B+
Retailer 6
-
$9,065 AUD
$6,368 USD
View
Retailer 7
-
$9,068 AUD
$6,370 USD
View
Price last confirmed 11 days ago
Retailer 8
-
$9,108 AUD
$6,398 USD
View
Price last confirmed 17 days ago
Retailer 9
-
$9,509 AUD
£5,260 GBP
View
Price last confirmed 12 days ago
Retailer 10
-
$9,666 AUD
$6,790 USD
View
Price last confirmed 11 days ago
Retailer 11
-
$9,738 AUD
View
Price last confirmed 29 days ago
Retailer 12
-
$9,867 AUD
$6,931 USD
View
Price last confirmed 12 days ago
Retailer 13
-
$10,019 AUD
$7,038 USD
View
Price last confirmed 16 days ago
Retailer 14
-
$10,095 AUD
$7,091 USD
View
Price last confirmed 15 days ago
Retailer 15
-
$11,385 AUD
$7,997 USD
View
Price last confirmed 12 days ago
Retailer 16
-
$11,978 AUD
ZAR 135,924 ZAR
View
Price last confirmed 15 days ago
Retailer 17
-
$14,614 AUD
£8,083 GBP
View
Price last confirmed 12 days ago
Retailer 18
-
$14,753 AUD
£8,160 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
8d6608aa-ee51-4159-9e31-7cfd63a51cb0 · Oct 21
$16,502 AUD
$11,592 USD
View
Price last confirmed 12 days ago
18 more retailers have this diamond
Prices start from $8,720 AUDSave up to $346 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
$8,720 AUD