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Heart|Natural|GIA

0.90ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 7553105689

Certificate GIA 7553105689

Diamond specifications and retailer prices

From $1,348 AUD
HK$7,400 HKD
As of October 30, 2026
Save $1,380 AUD (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,910 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.9ct natural heart diamond

This 0.9ct natural heart sits in the just-under-one-carat band, graded E 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 7553105689. Listed at 13 retailers as of October 23, 2026, with a 102% 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

0.90
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7553105689
Dimensions5.77 × 6.77 × 3.89 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
5.77 mm6.77 mm0.90 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7553105689
Side View
Table 59.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 57.5%

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: Oct 30
Current: $1,771 AUD|Low: $1,312 AUD|High: $3,726 AUD|Avg: $2,190 AUD|-5.7%
Retailer 1
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
October 30, 2026
Retailer 10$1,348 AUD
Retailer 7$1,677 AUD
Retailer 13$1,714 AUD
Retailer 8$1,737 AUD
Retailer 9$1,752 AUD
Retailer 1$1,771 AUD
Retailer 12$1,904 AUD
Retailer 14$2,014 AUD
Retailer 3$2,066 AUD
Retailer 6$2,427 AUD
Retailer 5$2,427 AUD
Retailer 4$2,724 AUD
Retailer 11$2,729 AUD
Retailer 2$3,432 AUD

35 data points across 14 retailers

13 retailers$1,348 AUD to $2,729 AUD

A
Cheapest Retailer
-
$1,348 AUD
HK$7,400 HKD
A
Retailer 2
-
$1,677 AUD
€1,122 EUR
View
A
Retailer 3
-
$1,714 AUD
$1,204 USD
View
Final sale: no returns
Retailer 4
-
$1,737 AUD
$1,220 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$1,752 AUD
$1,231 USD
View
A
Retailer 6
-
$1,771 AUD
£980 GBP
View
Retailer 7
-
$1,904 AUD
SGD 1,807 SGD
View
Price last confirmed 7 days ago
Retailer 8
-
$2,427 AUD
£1,342 GBP
View
Price last confirmed 33 days ago
Retailer 9
-
$2,427 AUD
View
Price last confirmed 26 days ago
Retailer 10
-
$2,724 AUD
ZAR 30,915 ZAR
View
Price last confirmed 26 days ago
B+
Retailer 11
-
$2,729 AUD
$1,917 USD
View
Retailer 12
-
$3,432 AUD
£1,898 GBP
View
Price last confirmed 22 days ago
Most Expensive
NZ Jewellers
66cfb887-4869-47cf-acd1-87e3956687f7 · Sep 25
$4,910 AUD
$3,449 USD
View
Price last confirmed 35 days ago
12 more retailers have this diamond
Prices start from $1,348 AUDSave up to $1,380 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
0.90ct Heart
$1,348 AUD