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Heart|Natural|GIA

0.90ct G SI1 Heart Natural Diamond

VG • G/SI1 • GIA 1539576919

Certificate GIA 1539576919

Diamond specifications and retailer prices

From $1,589 AUD
HK$8,700 HKD
As of November 1, 2026
Save $2,044 AUD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,648 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1539576919. Listed at 19 retailers as of November 1, 2026, with a 129% 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle40.3°
OriginNatural
Grading LabGIA
CertificateGIA 1539576919
Dimensions6.72 × 6.00 × 3.59 mm
L/W Ratio1.12
Girdle conditionFaceted
Top View
6.72 mm6.00 mm0.90 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1539576919
Side View
Table 58.0%CrownGirdle: STK-THKPavilion 40.3°Culet: NoneDepth 59.8%

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: $2,040 AUD|Low: $1,589 AUD|High: $3,994 AUD|Avg: $2,329 AUD|-4.7%
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
Retailer 15
Retailer 16
Retailer 17
November 3, 2026
Retailer 14$1,589 AUD
Retailer 11$1,615 AUD
Retailer 2$1,732 AUD
Retailer 13$1,741 AUD
Retailer 12$1,818 AUD
Retailer 5$1,908 AUD
Retailer 17$1,921 AUD
Retailer 3$2,025 AUD
Retailer 1$2,040 AUD
Retailer 7$2,042 AUD
Retailer 10$2,074 AUD
Retailer 8$2,556 AUD
Retailer 15$2,585 AUD
Retailer 9$2,947 AUD
Retailer 4$3,127 AUD
Retailer 6$3,298 AUD
Retailer 16$3,633 AUD

26 data points across 17 retailers

19 retailers$1,589 AUD to $3,633 AUD

A
Cheapest Retailer
-
$1,589 AUD
HK$8,700 HKD
A
Retailer 2
-
$1,615 AUD
$1,132 USD
View
A
Retailer 3
-
$1,732 AUD
$1,214 USD
View
Final sale: no returns
A
Retailer 4
-
$1,741 AUD
$1,220 USD
View
A
Retailer 5
-
$1,818 AUD
$1,274 USD
View
B+
Retailer 6
-
$1,908 AUD
$1,337 USD
View
B+
Retailer 7
-
$1,921 AUD
€1,282 EUR
View
B+
Retailer 8
-
$2,025 AUD
$1,419 USD
View
B+
Retailer 9
-
$2,040 AUD
$1,430 USD
View
B+
Retailer 10
-
$2,042 AUD
$1,431 USD
View
B+
Retailer 11
-
$2,074 AUD
£1,145 GBP
View
B+
Retailer 12
-
$2,556 AUD
SGD 2,421 SGD
View
B+
Retailer 13
-
$2,585 AUD
$1,812 USD
View
B
Retailer 14
-
$2,781 AUD
View
Retailer 15
-
$2,947 AUD
View
Price last confirmed 28 days ago
Retailer 16
-
$3,127 AUD
ZAR 35,407 ZAR
View
Price last confirmed 12 days ago
Retailer 17
-
$3,298 AUD
$2,311 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
$3,633 AUD
£2,005 GBP
View
Most Expensive
NZ Jewellers
31b5ce5e-6c41-42b3-ab72-ebd5712321ad · Sep 25
$5,648 AUD
$3,958 USD
View
Price last confirmed 38 days ago
18 more retailers have this diamond
Prices start from $1,589 AUDSave up to $2,044 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
$1,589 AUD