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Round|Natural|GIA

1.50ct M SI1 Round Natural Diamond

VG • M/SI1 • GIA 2558114419

Certificate GIA 2558114419

Diamond specifications and retailer prices

From $2,998 AUD
As of November 4, 2026
Save $5,010 AUD (63%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,008 AUD at NZ Jewellers · As of November 5, 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 very-good cut grade and certified by GIA 2558114419. Listed at 14 retailers as of November 4, 2026, with prices from $2,998 to $8,008, a $5,010 spread on the same certified stone. NZ Jewellers lists it at $8,008. 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle37°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2558114419
Dimensions7.04 × 7.13 × 4.62 mm
L/W Ratio1.01
Top View
7.04 mm7.13 mm1.50 ctM / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2558114419
Side View
Table 59.0%Crown 37°Girdle: THN-THKPavilion 41.2°Culet: NoneDepth 65.2%

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: $8,008 AUD|Low: $2,980 AUD|High: $8,008 AUD|Avg: $4,111 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
Retailer 13
Retailer 14
November 5, 2026
Retailer 10$2,998 AUD
Retailer 7$3,048 AUD
Retailer 5$3,430 AUD
Retailer 3$3,771 AUD
Retailer 12$3,830 AUD
Retailer 14$3,830 AUD
Retailer 9$3,844 AUD
Retailer 13$3,977 AUD
Retailer 11$4,031 AUD
Retailer 4$4,420 AUD
Retailer 8$4,670 AUD
Retailer 2$4,674 AUD
Retailer 6$5,798 AUD
NZ Jewellers$8,008 AUD

44 data points across 14 retailers

14 retailers$2,998 AUD to $8,008 AUD

B+
Cheapest Retailer
-
$2,998 AUD
A
Retailer 2
-
$3,048 AUD
View
B+
Retailer 3
-
$3,430 AUD
View
B+
Retailer 4
-
$3,771 AUD
View
B+
Retailer 5
-
$3,830 AUD
View
Retailer 6
-
$3,830 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$3,844 AUD
View
B+
Retailer 8
-
$3,977 AUD
View
B+
Retailer 9
-
$4,031 AUD
View
B+
Retailer 10
-
$4,420 AUD
View
B
Retailer 11
-
$4,670 AUD
View
B+
Retailer 12
-
$4,674 AUD
View
B
Retailer 13
-
$5,798 AUD
View
Most Expensive
C
NZ Jewellers
5e3a2bb2-8e81-4293-bf97-d0fb365e2fd7 · Nov 5
$8,008 AUD
$5,606 USD
View
13 more retailers have this diamond
Prices start from $2,998 AUDSave up to $5,010 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
$2,998 AUD