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Round|Natural|GIA

1.50ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 1547266630

Certificate GIA 1547266630

Diamond specifications and retailer prices

From $3,657 AUD
As of November 4, 2026
Save $2,198 AUD (38%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,358 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1547266630. Listed at 14 retailers as of November 4, 2026, with a 60% 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1547266630
Dimensions7.49 × 7.44 × 4.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle
Top View
7.49 mm7.44 mm1.50 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1547266630
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.4%

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 4
Current: $5,855 AUD|Low: $3,620 AUD|High: $5,897 AUD|Avg: $4,680 AUD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 5$3,657 AUD
Retailer 2$3,856 AUD
Retailer 4$4,387 AUD
Retailer 7$4,485 AUD
Retailer 8$4,798 AUD
Retailer 6$4,828 AUD
Retailer 3$5,598 AUD
Retailer 1$5,855 AUD

43 data points across 8 retailers

14 retailers$3,657 AUD to $5,855 AUD

A
Cheapest Retailer
-
$3,657 AUD
A
Retailer 2
-
$3,856 AUD
View
B+
Retailer 3
-
$4,387 AUD
View
B+
Retailer 4
-
$4,485 AUD
View
B+
Retailer 5
-
$4,635 AUD
View
Retailer 6
-
$4,798 AUD
View
Price last confirmed 21 days ago
Retailer 7
-
$4,798 AUD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
$4,828 AUD
View
Retailer 9
-
$4,983 AUD
View
Price last confirmed 22 days ago
B
Retailer 10
-
$5,003 AUD
View
Retailer 11
-
$5,535 AUD
View
Price last confirmed 19 days ago
B
Retailer 12
-
$5,598 AUD
View
B
Retailer 13
-
$5,855 AUD
View
Most Expensive
NZ Jewellers
89d47ed6-1b74-4f0f-9f49-2afd9b747c17 · Oct 17
$8,358 AUD
$5,851 USD
View
Price last confirmed 19 days ago
13 more retailers have this diamond
Prices start from $3,657 AUDSave up to $2,198 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
$3,657 AUD