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Round|Natural|GIA

1.50ct G I1 Round Natural Diamond

EX • G/I1 • GIA 6551702564

Certificate GIA 6551702564

Diamond specifications and retailer prices

From $5,138 AUD
$3,601 USD
As of November 1, 2026
Save $2,125 AUD (29%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $11,478 AUD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6551702564. Listed at 10 retailers as of November 1, 2026, with a 41% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
G
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6551702564
Dimensions7.22 × 7.28 × 4.61 mm
L/W Ratio1.01
Key to symbols
Cloud, Feather, Crystal, Indented Natural, Needle, Natural
Top View
7.22 mm7.28 mm1.50 ctG / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551702564
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 63.6%

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: $12,136 AUD|Low: $5,138 AUD|High: $12,136 AUD|Avg: $7,812 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 8$5,138 AUD
Retailer 5$6,578 AUD
Retailer 6$6,578 AUD
Retailer 7$6,806 AUD
Retailer 12$6,966 AUD
Retailer 10$6,969 AUD
Retailer 4$7,050 AUD
Retailer 2$7,263 AUD
Retailer 11$8,038 AUD
Retailer 9$8,179 AUD
Retailer 3$11,308 AUD
NZ Jewellers$12,136 AUD

23 data points across 12 retailers

10 retailers$5,138 AUD to $7,263 AUD

A
Cheapest Retailer
-
$5,138 AUD
$3,601 USD
Retailer 2
-
$5,969 AUD
$4,183 USD
View
Price last confirmed 25 days ago
Retailer 3
-
$5,969 AUD
$4,183 USD
View
Price last confirmed 21 days ago
Retailer 4
-
$5,969 AUD
$4,183 USD
View
Price last confirmed 33 days ago
B+
Retailer 5
-
$6,578 AUD
$4,610 USD
View
B+
Retailer 6
-
$6,578 AUD
$4,610 USD
View
B+
Retailer 7
-
$6,806 AUD
$4,770 USD
View
Retailer 8
-
$6,886 AUD
$4,826 USD
View
Price last confirmed 24 days ago
B+
Retailer 9
-
$7,263 AUD
€4,848 EUR
View
Most Expensive
NZ Jewellers
7f16a14e-5a2c-4e89-92f4-cacd96628f24 · Sep 26
$11,478 AUD
$8,044 USD
View
Price last confirmed 36 days ago
9 more retailers have this diamond
Prices start from $5,138 AUDSave up to $2,125 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
1.50ct Round
$5,138 AUD