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Heart|Natural|GIA

1.55ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 7531798267

Certificate GIA 7531798267

Diamond specifications and retailer prices

From $3,836 AUD
As of November 6, 2026
Save $4,552 AUD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,763 AUD at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.55ct natural heart diamond

This 1.55ct natural heart sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7531798267. Listed at 18 retailers as of November 4, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7531798267
Dimensions8.26 × 7.43 × 4.50 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Cavity, Needle
Top View
8.26 mm7.43 mm1.55 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7531798267
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 54.5%

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: $5,189 AUD|Low: $3,800 AUD|High: $8,580 AUD|Avg: $5,265 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
November 7, 2026
Retailer 9$3,836 AUD
Retailer 7$3,893 AUD
Retailer 4$4,072 AUD
Retailer 3$4,745 AUD
Retailer 1$5,189 AUD
Retailer 10$5,239 AUD
Retailer 5$5,328 AUD
Retailer 11$5,341 AUD
Retailer 2$5,434 AUD
Retailer 6$6,139 AUD
Retailer 8$8,389 AUD

41 data points across 11 retailers

18 retailers$3,836 AUD to $8,389 AUD

A
Cheapest Retailer
-
$3,836 AUD
A
Retailer 2
-
$3,893 AUD
View
A
Retailer 3
-
$4,072 AUD
View
B+
Retailer 4
-
$4,740 AUD
View
B+
Retailer 5
-
$4,745 AUD
View
Retailer 6
-
$5,030 AUD
View
Price last confirmed 20 days ago
Retailer 7
-
$5,030 AUD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
$5,189 AUD
View
Retailer 9
-
$5,223 AUD
View
Price last confirmed 22 days ago
B+
Retailer 10
-
$5,239 AUD
View
B+
Retailer 11
-
$5,276 AUD
View
B+
Retailer 12
-
$5,328 AUD
View
B+
Retailer 13
-
$5,341 AUD
View
Retailer 14
-
$5,434 AUD
View
Price last confirmed 34 days ago
Retailer 15
-
$5,804 AUD
View
Price last confirmed 19 days ago
B+
Retailer 16
-
$6,139 AUD
View
B
Retailer 17
-
$8,389 AUD
View
Most Expensive
NZ Jewellers
dca59de9-155e-4df7-8d92-64b7c9de82d8 · Oct 18
$8,763 AUD
$6,021 USD
View
Price last confirmed 20 days ago
17 more retailers have this diamond
Prices start from $3,836 AUDSave up to $4,552 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
1.55ct Heart
$3,836 AUD