Heart|Natural|GIA

1.53ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 2528505619

Certificate GIA 2528505619

Diamond specifications and retailer prices

From $5,722 AUD
HK$31,400 HKD
As of November 1, 2026
Save $6,234 AUD (52%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $12,555 AUD at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.53ct natural heart diamond

This 1.53ct 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 2528505619. Listed at 13 retailers as of November 1, 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

1.53
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2528505619
Dimensions6.79 × 7.82 × 4.74 mm
L/W Ratio1.15
Top View
6.79 mm7.82 mm1.53 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2528505619
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.6%

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: $11,956 AUD|Low: $5,521 AUD|High: $12,101 AUD|Avg: $7,348 AUD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 6$5,685 AUD
Retailer 2$5,722 AUD
Retailer 4$5,931 AUD
Retailer 8$5,981 AUD
Retailer 9$6,325 AUD
Retailer 3$7,040 AUD
Retailer 7$7,568 AUD
Retailer 5$8,800 AUD
Retailer 1$11,956 AUD

35 data points across 9 retailers

13 retailers$5,722 AUD to $11,956 AUD

Retailer 1
-
$5,685 AUD
₹380,328 INR
Price last confirmed 13 days ago
A
Retailer 2
-
$5,722 AUD
HK$31,400 HKD
View
Retailer 3
-
$5,931 AUD
€3,968 EUR
View
Price last confirmed 9 days ago
A
Retailer 4
-
$5,981 AUD
$4,201 USD
View
Final sale: no returns
Retailer 5
-
$6,325 AUD
$4,443 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$6,883 AUD
$4,835 USD
View
A
Retailer 7
-
$7,040 AUD
$4,945 USD
View
Retailer 8
-
$7,081 AUD
SGD 6,722 SGD
View
Price last confirmed 15 days ago
Retailer 9
-
$7,507 AUD
$5,273 USD
View
Price last confirmed 16 days ago
Retailer 10
-
$7,507 AUD
$5,273 USD
View
Price last confirmed 14 days ago
Retailer 11
-
$7,568 AUD
View
Price last confirmed 23 days ago
B+
Retailer 12
-
$11,956 AUD
£6,613 GBP
View
Most Expensive
NZ Jewellers
ef2d0258-2570-4509-9514-7eac59059459 · Oct 18
$12,555 AUD
$8,819 USD
View
Price last confirmed 15 days ago
12 more retailers have this diamond
Prices start from $5,722 AUDSave up to $6,234 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
1.53ct Heart
$5,722 AUD