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Radiant|Lab Grown|IGI

1.50ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG778660444

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG778660444

Diamond specifications and retailer prices

From HK$1,497 HKD
As of November 6, 2026
Save HK$7,163 HKD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$8,660 HKD at MOH London · As of November 5, 2026
View at MOH London

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778660444 or 778660444. Listed at 16 retailers as of November 5, 2026, with prices from HK$1,497 to HK$8,660, a HK$7,163 spread on the same certified stone. MOH London lists it at HK$8,660. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778660444
Dimensions8.24 × 5.72 × 3.74 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.24 mm5.72 mm1.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778660444
Side View
Table 65.0%Crown 38.9°Girdle: Slightly ThickPavilion 33.7°Culet: NoneDepth 65.4%

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 6
Current: HK$8,660 HKD|Low: HK$1,458 HKD|High: HK$8,888 HKD|Avg: HK$4,452 HKD|-2.6%
MOH London
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 3HK$1,497 HKD
Retailer 16HK$1,669 HKD
Retailer 12HK$1,740 HKD
Retailer 7HK$1,857 HKD
Retailer 8HK$1,865 HKD
Retailer 4HK$3,253 HKD
Retailer 2HK$3,339 HKD
Retailer 14HK$3,676 HKD
Retailer 15HK$4,459 HKD
Retailer 11HK$4,828 HKD
Retailer 10HK$5,643 HKD
Retailer 13HK$5,972 HKD
Retailer 5HK$6,058 HKD
Retailer 6HK$6,387 HKD
Retailer 9HK$8,073 HKD
MOH LondonHK$8,660 HKD

34 data points across 16 retailers

16 retailersHK$1,497 HKD to HK$8,660 HKD

A
Cheapest Retailer
-
HK$1,497 HKD
A
Retailer 2
-
HK$1,669 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$1,740 HKD
View
A
Retailer 4
-
HK$1,857 HKD
View
Retailer 5
-
HK$1,865 HKD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
HK$3,253 HKD
View
A
Retailer 7
-
HK$3,339 HKD
View
A
Retailer 8
-
HK$3,676 HKD
View
A
Retailer 9
-
HK$4,459 HKD
View
B+
Retailer 10
-
HK$4,828 HKD
View
B+
Retailer 11
-
HK$5,643 HKD
View
B+
Retailer 12
-
HK$5,972 HKD
View
B+
Retailer 13
-
HK$6,058 HKD
View
B+
Retailer 14
-
HK$6,387 HKD
View
B
Retailer 15
-
HK$8,073 HKD
View
Most Expensive
B
MOH London
LG778660444 · Nov 5
HK$8,660 HKD
£870 GBP
View
15 more retailers have this diamond
Prices start from HK$1,497 HKDSave up to HK$7,163 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 Radiant
HK$1,497 HKD