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Heart|Natural|GIA

0.90ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 5556107530

Certificate GIA 5556107530

Diamond specifications and retailer prices

From $1,242 AUD
HK$6,800 HKD
As of November 1, 2026
Save $1,828 AUD (60%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,713 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556107530. Listed at 17 retailers as of November 1, 2026, with a 147% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556107530
Dimensions5.93 × 6.58 × 3.88 mm
L/W Ratio1.11
Top View
5.93 mm6.58 mm0.90 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556107530
Side View
Table 58.0%CrownGirdle: VTN-VTKPavilionCulet: NoneDepth 59.0%

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: $2,345 AUD|Low: $1,242 AUD|High: $3,389 AUD|Avg: $2,019 AUD|-7.7%
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
November 2, 2026
Retailer 9$1,242 AUD
Retailer 13$1,547 AUD
Retailer 11$1,601 AUD
Retailer 8$1,681 AUD
Retailer 7$1,698 AUD
Retailer 12$1,712 AUD
Retailer 3$1,735 AUD
Retailer 2$1,762 AUD
Retailer 6$1,806 AUD
Retailer 5$2,025 AUD
Retailer 1$2,345 AUD
Retailer 14$2,580 AUD
Retailer 4$2,724 AUD
Retailer 10$3,070 AUD

26 data points across 14 retailers

17 retailers$1,242 AUD to $3,070 AUD

A
Cheapest Retailer
-
$1,242 AUD
HK$6,800 HKD
A
Retailer 2
-
$1,547 AUD
$1,084 USD
View
Final sale: no returns
A
Retailer 3
-
$1,601 AUD
€1,069 EUR
View
A
Retailer 4
-
$1,681 AUD
$1,178 USD
View
A
Retailer 5
-
$1,698 AUD
£937 GBP
View
A
Retailer 6
-
$1,712 AUD
$1,200 USD
View
A
Retailer 7
-
$1,735 AUD
$1,216 USD
View
A
Retailer 8
-
$1,762 AUD
$1,235 USD
View
Retailer 9
-
$1,806 AUD
SGD 1,710 SGD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
$2,025 AUD
$1,419 USD
View
Retailer 11
-
$2,322 AUD
View
Price last confirmed 29 days ago
Retailer 12
-
$2,330 AUD
£1,285 GBP
View
Price last confirmed 36 days ago
B+
Retailer 13
-
$2,345 AUD
€1,565 EUR
View
B+
Retailer 14
-
$2,580 AUD
ZAR 29,213 ZAR
View
Retailer 15
-
$2,724 AUD
$1,909 USD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
$3,070 AUD
£1,694 GBP
View
Most Expensive
NZ Jewellers
6b2ade4e-b8d1-4db4-a1d9-176439865496 · Sep 25
$4,713 AUD
$3,303 USD
View
Price last confirmed 38 days ago
16 more retailers have this diamond
Prices start from $1,242 AUDSave up to $1,828 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
$1,242 AUD