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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 HK$11,987 HKD
As of November 5, 2026
Save HK$25,003 HKD (68%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$36,990 HKD 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 HK$11,987 to HK$36,990, a HK$25,003 spread on the same certified stone. NZ Jewellers lists it at HK$36,990. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: HK$16,514 HKD|Low: HK$11,987 HKD|High: HK$20,774 HKD|Avg: HK$16,000 HKD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2HK$11,987 HKD
Retailer 5HK$13,706 HKD
Retailer 7HK$15,165 HKD
Retailer 6HK$15,494 HKD
Retailer 1HK$16,514 HKD
Retailer 3HK$18,507 HKD
Retailer 4HK$20,578 HKD

39 data points across 7 retailers

13 retailersHK$11,987 HKD to HK$36,990 HKD

A
Cheapest Retailer
-
HK$11,987 HKD
B+
Retailer 2
-
HK$13,706 HKD
View
B+
Retailer 3
-
HK$14,780 HKD
View
B+
Retailer 4
-
HK$15,165 HKD
View
Retailer 5
-
HK$15,165 HKD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
HK$15,494 HKD
View
B+
Retailer 7
-
HK$15,871 HKD
View
B+
Retailer 8
-
HK$16,247 HKD
View
A
Retailer 9
-
HK$16,514 HKD
View
B+
Retailer 10
-
HK$17,503 HKD
View
B+
Retailer 11
-
HK$18,507 HKD
View
B+
Retailer 12
-
HK$20,578 HKD
View
Most Expensive
B
NZ Jewellers
8beecb8e-053c-42f6-8142-5f90efbb540c · Nov 5
HK$36,990 HKD
$4,715 USD
View
12 more retailers have this diamond
Prices start from HK$11,987 HKDSave up to HK$25,003 HKD

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
HK$11,987 HKD