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1.50ct M SI1 Round Natural Diamond

EX • M/SI1 • IGI 550250291

Shape and cutting style on the report: Round brilliant

Certificate IGI 550250291

Diamond specifications and retailer prices

From $1,952 SGD
As of November 5, 2026
Save $4,071 SGD (68%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,022 SGD 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 top-tier cut grade and certified by IGI 550250291. Listed at 13 retailers as of November 5, 2026, with prices from $1,952 to $6,022, a $4,071 spread on the same certified stone. NZ Jewellers lists it at $6,022. 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 angle32.4°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 550250291
Dimensions7.39 × 7.43 × 4.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.39 mm7.43 mm1.50 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 550250291
Side View
Table 61.5%Crown 32.4°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 58.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,689 SGD|Low: $1,952 SGD|High: $3,382 SGD|Avg: $2,605 SGD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$1,952 SGD
Retailer 5$2,231 SGD
Retailer 7$2,469 SGD
Retailer 6$2,523 SGD
Retailer 1$2,689 SGD
Retailer 3$3,013 SGD
Retailer 4$3,350 SGD

39 data points across 7 retailers

13 retailers$1,952 SGD to $6,022 SGD

A
Cheapest Retailer
-
$1,952 SGD
B+
Retailer 2
-
$2,231 SGD
View
B+
Retailer 3
-
$2,406 SGD
View
B+
Retailer 4
-
$2,469 SGD
View
Retailer 5
-
$2,469 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$2,523 SGD
View
B+
Retailer 7
-
$2,584 SGD
View
B+
Retailer 8
-
$2,645 SGD
View
A
Retailer 9
-
$2,689 SGD
View
B+
Retailer 10
-
$2,850 SGD
View
B+
Retailer 11
-
$3,013 SGD
View
B+
Retailer 12
-
$3,350 SGD
View
Most Expensive
B
NZ Jewellers
8beecb8e-053c-42f6-8142-5f90efbb540c · Nov 5
$6,022 SGD
$4,715 USD
View
12 more retailers have this diamond
Prices start from $1,952 SGDSave up to $4,071 SGD

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
$1,952 SGD