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Heart|Natural|GIA

0.90ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 2556138107

Certificate GIA 2556138107

Diamond specifications and retailer prices

From $1,443 AUD
HK$7,900 HKD
As of November 1, 2026
Save $2,122 AUD (60%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,369 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 2556138107. Listed at 15 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556138107
Dimensions5.68 × 6.72 × 3.94 mm
L/W Ratio1.18
Top View
5.68 mm6.72 mm0.90 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556138107
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 58.6%

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: $1,908 AUD|Low: $1,443 AUD|High: $3,903 AUD|Avg: $2,334 AUD|-6.3%
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 1, 2026
Retailer 6$1,443 AUD
Retailer 10$1,796 AUD
Retailer 9$1,819 AUD
Retailer 1$1,908 AUD
Retailer 13$1,971 AUD
Retailer 8$1,976 AUD
Retailer 12$1,976 AUD
Retailer 4$2,067 AUD
Retailer 3$2,242 AUD
Retailer 5$2,725 AUD
Retailer 11$2,955 AUD
Retailer 2$3,093 AUD
Retailer 7$3,565 AUD

28 data points across 13 retailers

15 retailers$1,443 AUD to $3,565 AUD

A
Cheapest Retailer
-
$1,443 AUD
HK$7,900 HKD
B+
Retailer 2
-
$1,796 AUD
$1,259 USD
View
Final sale: no returns
A
Retailer 3
-
$1,819 AUD
€1,214 EUR
View
A
Retailer 4
-
$1,908 AUD
$1,337 USD
View
B+
Retailer 5
-
$1,971 AUD
$1,381 USD
View
A
Retailer 6
-
$1,976 AUD
£1,090 GBP
View
A
Retailer 7
-
$1,976 AUD
$1,385 USD
View
Retailer 8
-
$2,067 AUD
SGD 1,958 SGD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$2,242 AUD
$1,571 USD
View
Retailer 10
-
$2,655 AUD
£1,465 GBP
View
Price last confirmed 36 days ago
Retailer 11
-
$2,725 AUD
View
Price last confirmed 27 days ago
B+
Retailer 12
-
$2,955 AUD
ZAR 33,451 ZAR
View
Retailer 13
-
$3,093 AUD
$2,168 USD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$3,565 AUD
£1,967 GBP
View
Most Expensive
NZ Jewellers
871f458a-8726-4785-b6aa-fff2c9ba3326 · Sep 25
$5,369 AUD
$3,763 USD
View
Price last confirmed 38 days ago
14 more retailers have this diamond
Prices start from $1,443 AUDSave up to $2,122 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
$1,443 AUD