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1.50ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG499189131

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499189131

Diamond specifications and retailer prices

From HK$6,512 HKD
As of November 5, 2026
Save HK$29,387 HKD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$35,898 HKD at MOH London · As of November 3, 2026
View at MOH London

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499189131 or 499189131. Listed at 10 retailers as of November 3, 2026, with prices from HK$6,512 to HK$35,898, a HK$29,387 spread on the same certified stone. MOH London lists it at HK$35,898. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499189131
Dimensions7.29 × 7.24 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.29 mm7.24 mm1.50 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499189131
Side View
Table 56.5%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.2%

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 5
Current: HK$35,898 HKD|Low: HK$6,512 HKD|High: HK$36,376 HKD|Avg: HK$16,599 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 2HK$6,512 HKD
Retailer 5HK$9,634 HKD
Retailer 8HK$10,481 HKD
Retailer 10HK$10,779 HKD
Retailer 6HK$11,172 HKD
Retailer 3HK$12,097 HKD
Retailer 11HK$15,753 HKD
Retailer 7HK$17,707 HKD
Retailer 9HK$20,939 HKD
Retailer 12HK$21,402 HKD
Retailer 4HK$25,010 HKD
MOH LondonHK$35,898 HKD

14 data points across 12 retailers

10 retailersHK$6,512 HKD to HK$35,898 HKD

A
Cheapest Retailer
-
HK$6,512 HKD
B+
Retailer 2
-
HK$9,634 HKD
View
B+
Retailer 3
-
HK$10,481 HKD
View
B+
Retailer 4
-
HK$10,779 HKD
View
Final sale: no returns
Retailer 5
-
HK$11,172 HKD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
HK$11,172 HKD
View
B
Retailer 7
-
HK$17,707 HKD
View
B
Retailer 8
-
HK$20,939 HKD
View
B
Retailer 9
-
HK$21,402 HKD
View
Most Expensive
B
MOH London
LG499189131 · Nov 3
HK$35,898 HKD
£3,603 GBP
View
9 more retailers have this diamond
Prices start from HK$6,512 HKDSave up to HK$29,387 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$6,512 HKD