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Radiant|Lab Grown|IGI

1.54ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG488131855

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

Certificate IGI LG488131855

Diamond specifications and retailer prices

From HK$7,689 HKD
$980 USD
As of October 31, 2026
Save HK$30,703 HKD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$38,391 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 1.54ct lab-grown radiant diamond

This 1.54ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG488131855 or 488131855. Listed at 10 retailers as of October 29, 2026, with prices from HK$7,689 to HK$38,391, a HK$30,703 spread on the same certified stone. MOH London lists it at HK$38,391. 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

1.54
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.5°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG488131855
Dimensions7.84 × 5.74 × 3.88 mm
L/W Ratio1.37
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.84 mm5.74 mm1.54 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG488131855
Side View
Table 65.5%Crown 44.5°Girdle: MediumPavilion 31.3°Culet: NoneDepth 67.6%

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: Oct 31
Current: HK$38,391 HKD|Low: HK$7,689 HKD|High: HK$38,700 HKD|Avg: HK$19,132 HKD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2HK$7,689 HKD
Retailer 3HK$11,525 HKD
Retailer 4HK$13,369 HKD
Retailer 6HK$14,711 HKD
Retailer 9HK$15,199 HKD
Retailer 8HK$18,147 HKD
Retailer 5HK$21,074 HKD
Retailer 7HK$24,267 HKD
MOH LondonHK$38,391 HKD

13 data points across 9 retailers

10 retailersHK$7,689 HKD to HK$38,391 HKD

A
Cheapest Retailer
-
HK$7,689 HKD
$980 USD
B+
Retailer 2
-
HK$11,525 HKD
$1,469 USD
View
B+
Retailer 3
-
HK$12,537 HKD
$1,598 USD
View
Retailer 4
-
HK$13,369 HKD
$1,704 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
HK$13,369 HKD
$1,704 USD
View
B+
Retailer 6
-
HK$14,711 HKD
$1,875 USD
View
B
Retailer 7
-
HK$21,074 HKD
$2,686 USD
View
B
Retailer 8
-
HK$24,267 HKD
$3,093 USD
View
B
Retailer 9
-
HK$25,059 HKD
$3,194 USD
View
Most Expensive
B
MOH London
LG488131855 · Oct 29
HK$38,391 HKD
£3,853 GBP
View
9 more retailers have this diamond
Prices start from HK$7,689 HKDSave up to HK$30,703 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
1.54ct Radiant
HK$7,689 HKD