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1.50ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG451055679

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451055679

Diamond specifications and retailer prices

From HK$6,512 HKD
As of November 5, 2026
Save HK$33,282 HKD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$39,794 HKD at MOH London · As of November 5, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451055679 or 451055679. Listed at 11 retailers as of November 5, 2026, with prices from HK$6,512 to HK$39,794, a HK$33,282 spread on the same certified stone. MOH London lists it at HK$39,794. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055679
Dimensions7.30 × 7.32 × 4.51 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.30 mm7.32 mm1.50 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451055679
Side View
Table 57.0%Crown 35.8°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.7%

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$39,794 HKD|Low: HK$6,512 HKD|High: HK$40,441 HKD|Avg: HK$18,069 HKD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 2HK$6,512 HKD
Retailer 3HK$10,709 HKD
Retailer 6HK$11,980 HKD
Retailer 4HK$12,419 HKD
Retailer 7HK$13,768 HKD
Retailer 8HK$17,001 HKD
Retailer 5HK$19,629 HKD
Retailer 9HK$23,151 HKD
MOH LondonHK$39,794 HKD

12 data points across 9 retailers

11 retailersHK$6,512 HKD to HK$39,794 HKD

A
Cheapest Retailer
-
HK$6,512 HKD
B+
Retailer 2
-
HK$10,709 HKD
View
B+
Retailer 3
-
HK$11,650 HKD
View
B+
Retailer 4
-
HK$11,980 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$12,419 HKD
View
Retailer 6
-
HK$12,419 HKD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
HK$13,768 HKD
View
B
Retailer 8
-
HK$19,629 HKD
View
B
Retailer 9
-
HK$23,151 HKD
View
B
Retailer 10
-
HK$23,277 HKD
View
Most Expensive
B
MOH London
LG451055679 · Nov 5
HK$39,794 HKD
£3,994 GBP
View
10 more retailers have this diamond
Prices start from HK$6,512 HKDSave up to HK$33,282 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