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Round|Natural|GIA

1.50ct N SI1 Round Natural Diamond

EX • N/SI1 • GIA 1549482305

Certificate GIA 1549482305

Diamond specifications and retailer prices

From $3,257 AUD
As of November 6, 2026
Save $1,186 AUD (27%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,301 AUD at NZ Jewellers · As of October 17, 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 N colour (tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1549482305. Listed at 9 retailers as of November 5, 2026, with a 36% 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

1.50
Carat
N
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1549482305
Dimensions7.30 × 7.26 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
7.30 mm7.26 mm1.50 ctN / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549482305
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

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 6
Current: $3,257 AUD|Low: $3,257 AUD|High: $5,700 AUD|Avg: $4,442 AUD|-6.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$3,257 AUD
Retailer 4$3,691 AUD
Retailer 3$4,291 AUD
Retailer 2$4,443 AUD
Retailer 6$5,233 AUD
Retailer 5$5,700 AUD

23 data points across 6 retailers

9 retailers$3,257 AUD to $4,443 AUD

A
Cheapest Retailer
-
$3,257 AUD
Retailer 2
-
$3,493 AUD
View
Price last confirmed 17 days ago
Retailer 3
-
$3,493 AUD
View
Price last confirmed 21 days ago
Retailer 4
-
$3,653 AUD
View
Price last confirmed 22 days ago
B+
Retailer 5
-
$3,691 AUD
View
Retailer 6
-
$4,030 AUD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$4,291 AUD
View
B
Retailer 8
-
$4,443 AUD
View
Most Expensive
NZ Jewellers
f878bc63-85ec-4eea-808d-91c261fb5461 · Oct 17
$7,301 AUD
$5,111 USD
View
Price last confirmed 19 days ago
8 more retailers have this diamond
Prices start from $3,257 AUDSave up to $1,186 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
$3,257 AUD