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Heart|Natural|GIA

0.90ct G SI1 Heart Natural Diamond

GD • G/SI1 • GIA 6234418421

Certificate GIA 6234418421

Diamond specifications and retailer prices

From $1,856 AUD
$1,301 USD
As of November 2, 2026
Save $2,014 AUD (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,906 AUD at NZ Jewellers · As of September 27, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6234418421. Listed at 20 retailers as of November 2, 2026, with a 108% 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6234418421
Dimensions6.15 × 7.42 × 3.38 mm
L/W Ratio1.21
Key to symbols
Feather, Cavity, Crystal, Needle
Top View
6.15 mm7.42 mm0.90 ctG / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6234418421
Side View
Table 67.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 45.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $2,224 AUD|Low: $1,493 AUD|High: $3,920 AUD|Avg: $2,476 AUD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 9$1,498 AUD
Retailer 10$1,856 AUD
Retailer 11$1,865 AUD
Retailer 4$2,012 AUD
Retailer 5$2,105 AUD
Retailer 12$2,155 AUD
Retailer 1$2,224 AUD
Retailer 3$2,625 AUD
Retailer 8$2,946 AUD
Retailer 2$3,095 AUD
Retailer 6$3,684 AUD
Retailer 7$3,871 AUD

38 data points across 12 retailers

20 retailers$1,856 AUD to $3,871 AUD

Retailer 1
-
$1,498 AUD
₹99,980 INR
Price last confirmed 10 days ago
Retailer 2
-
$1,697 AUD
$1,189 USD
View
Price last confirmed 10 days ago
B+
Retailer 3
-
$1,856 AUD
$1,301 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,865 AUD
$1,307 USD
View
Retailer 5
-
$2,012 AUD
$1,410 USD
View
Price last confirmed 38 days ago
Retailer 6
-
$2,012 AUD
$1,410 USD
View
Price last confirmed 35 days ago
B
Retailer 7
-
$2,105 AUD
$1,475 USD
View
B
Retailer 8
-
$2,155 AUD
$1,510 USD
View
B
Retailer 9
-
$2,205 AUD
$1,545 USD
View
B
Retailer 10
-
$2,224 AUD
£1,227 GBP
View
Retailer 11
-
$2,322 AUD
$1,627 USD
View
Price last confirmed 39 days ago
Retailer 12
-
$2,322 AUD
$1,627 USD
View
Price last confirmed 35 days ago
Retailer 13
-
$2,425 AUD
£1,338 GBP
View
Price last confirmed 37 days ago
Retailer 14
-
$2,625 AUD
View
Price last confirmed 28 days ago
B
Retailer 15
-
$2,946 AUD
ZAR 33,357 ZAR
View
B
Retailer 16
-
$3,095 AUD
$2,169 USD
View
B
Retailer 17
-
$3,684 AUD
£2,033 GBP
View
B
Retailer 18
-
$3,871 AUD
£2,136 GBP
View
Retailer 19
-
$4,906 AUD
$3,438 USD
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
b7e4f4b2-a7b3-41fd-b3d3-93d303c35dcf · Sep 27
$4,906 AUD
$3,438 USD
View
Price last confirmed 36 days ago
19 more retailers have this diamond
Prices start from $1,856 AUDSave up to $2,014 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.

B+
0.90ct Heart
$1,856 AUD