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Heart|Natural|GIA

0.90ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 3545938757

Certificate GIA 3545938757

Diamond specifications and retailer prices

From $1,020 AUD
HK$5,600 HKD
As of November 1, 2026
Save $1,578 AUD (61%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,918 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 I 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 3545938757. Listed at 16 retailers as of October 29, 2026, with a 155% 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

0.90
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 3545938757
Dimensions5.87 × 6.41 × 4.12 mm
L/W Ratio1.09
Top View
5.87 mm6.41 mm0.90 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 3545938757
Side View
Table 56.0%CrownGirdle: MED-VTKPavilion 41.6°Culet: NoneDepth 64.3%

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: $1,949 AUD|Low: $1,020 AUD|High: $2,752 AUD|Avg: $1,680 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
November 2, 2026
Retailer 8$1,020 AUD
Retailer 11$1,280 AUD
Retailer 9$1,349 AUD
Retailer 10$1,395 AUD
Retailer 7$1,414 AUD
Retailer 6$1,431 AUD
Retailer 5$1,451 AUD
Retailer 13$1,623 AUD
Retailer 4$1,707 AUD
Retailer 1$1,949 AUD
Retailer 12$2,066 AUD
Retailer 3$2,185 AUD
Retailer 2$2,598 AUD

26 data points across 13 retailers

16 retailers$1,020 AUD to $2,598 AUD

A
Cheapest Retailer
-
$1,020 AUD
HK$5,600 HKD
B+
Retailer 2
-
$1,280 AUD
$899 USD
View
Final sale: no returns
A
Retailer 3
-
$1,349 AUD
€902 EUR
View
A
Retailer 4
-
$1,395 AUD
$980 USD
View
A
Retailer 5
-
$1,414 AUD
$993 USD
View
A
Retailer 6
-
$1,431 AUD
£792 GBP
View
Retailer 7
-
$1,451 AUD
SGD 1,377 SGD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
$1,623 AUD
$1,140 USD
View
B+
Retailer 9
-
$1,707 AUD
$1,199 USD
View
Retailer 10
-
$1,940 AUD
View
Price last confirmed 29 days ago
B+
Retailer 11
-
$1,949 AUD
€1,304 EUR
View
B+
Retailer 12
-
$2,066 AUD
ZAR 23,443 ZAR
View
B+
Retailer 13
-
$2,108 AUD
View
Retailer 14
-
$2,185 AUD
$1,535 USD
View
Price last confirmed 9 days ago
B+
Retailer 15
-
$2,598 AUD
£1,437 GBP
View
Most Expensive
NZ Jewellers
ec28759f-c4f0-49f6-a001-e5d0b23ed479 · Sep 25
$3,918 AUD
$2,752 USD
View
Price last confirmed 38 days ago
15 more retailers have this diamond
Prices start from $1,020 AUDSave up to $1,578 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
$1,020 AUD