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Round|Natural|IGI

1.50ct M SI2 Round Natural Diamond

VG • M/SI2 • IGI 499123238

Shape and cutting style on the report: Round brilliant

Certificate IGI 499123238

Diamond specifications and retailer prices

From $2,043 AUD
As of November 5, 2026
Save $1,450 AUD (42%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,400 AUD at NZ Jewellers · As of October 23, 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 499123238. Listed at 11 retailers as of November 5, 2026, with a 71% 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

1.50
Carat
M
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.9°
Pavilion angle39.8°
OriginNatural
Grading LabIGI
CertificateIGI 499123238
Dimensions7.15 × 7.19 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.15 mm7.19 mm1.50 ctM / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 499123238
Side View
Table 55.5%Crown 35.9°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 63.0%

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 5
Current: $6,400 AUD|Low: $2,043 AUD|High: $6,400 AUD|Avg: $3,193 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5$2,043 AUD
Retailer 7$2,348 AUD
Retailer 6$2,577 AUD
Retailer 10$2,577 AUD
Retailer 3$2,634 AUD
Retailer 8$2,696 AUD
Retailer 9$2,773 AUD
Retailer 11$3,028 AUD
Retailer 2$3,401 AUD
Retailer 4$3,493 AUD
NZ Jewellers$6,400 AUD

42 data points across 11 retailers

11 retailers$2,043 AUD to $3,493 AUD

A
Cheapest Retailer
-
$2,043 AUD
B+
Retailer 2
-
$2,348 AUD
View
Retailer 3
-
$2,577 AUD
View
Price last confirmed 12 days ago
Retailer 4
-
$2,577 AUD
View
Price last confirmed 11 days ago
B+
Retailer 5
-
$2,634 AUD
View
Retailer 6
-
$2,696 AUD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
$2,773 AUD
View
Retailer 8
-
$3,028 AUD
View
Price last confirmed 14 days ago
B+
Retailer 9
-
$3,401 AUD
View
B+
Retailer 10
-
$3,493 AUD
View
Most Expensive
NZ Jewellers
73ce12ab-a877-458c-a11f-3c7d540d80a0 · Oct 23
$6,400 AUD
$4,480 USD
View
Price last confirmed 13 days ago
10 more retailers have this diamond
Prices start from $2,043 AUDSave up to $1,450 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
$2,043 AUD