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Radiant|Lab Grown|IGI

1.54ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG522254225

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

Certificate IGI LG522254225

Diamond specifications and retailer prices

From HK$7,846 HKD
$1,000 USD
As of November 2, 2026
Save HK$17,669 HKD (69%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$27,046 HKD at NZ Jewellers · As of November 1, 2026
View at NZ Jewellers

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522254225 or 522254225. Listed at 13 retailers as of November 2, 2026, with a 225% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522254225
Dimensions7.92 × 5.53 × 3.79 mm
L/W Ratio1.43
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
7.92 mm5.53 mm1.54 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522254225
Side View
Table 63.5%Crown 42.5°Girdle: Slightly ThickPavilionCulet: NoneDepth 68.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$20,271 HKD|Low: HK$7,846 HKD|High: HK$41,702 HKD|Avg: HK$22,455 HKD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 2HK$7,846 HKD
Retailer 5HK$12,436 HKD
Retailer 8HK$13,927 HKD
Retailer 6HK$14,429 HKD
Retailer 1HK$20,271 HKD
Retailer 7HK$22,699 HKD
Retailer 4HK$25,516 HKD
Retailer 9HK$39,872 HKD
Retailer 3HK$41,423 HKD

42 data points across 9 retailers

13 retailersHK$7,846 HKD to HK$25,516 HKD

B+
Cheapest Retailer
-
HK$7,846 HKD
$1,000 USD
B
Retailer 2
-
HK$12,436 HKD
$1,585 USD
View
B
Retailer 3
-
HK$13,535 HKD
$1,725 USD
View
B
Retailer 4
-
HK$13,927 HKD
$1,775 USD
View
Final sale: no returns
B
Retailer 5
-
HK$14,429 HKD
$1,839 USD
View
Retailer 6
-
HK$14,429 HKD
$1,839 USD
View
Price last confirmed 21 days ago
B
Retailer 7
-
HK$15,771 HKD
$2,010 USD
View
B
Retailer 8
-
HK$20,271 HKD
£2,034 GBP
View
B
Retailer 9
-
HK$22,699 HKD
$2,893 USD
View
B
Retailer 10
-
HK$25,516 HKD
$3,252 USD
View
Most Expensive
NZ Jewellers
a70915a5-9ce0-4e81-b6ec-2c84b1f55a6d · Nov 1
HK$27,046 HKD
$3,447 USD
View
Price under review
10 more retailers have this diamond
Prices start from HK$7,846 HKDSave up to HK$17,669 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.

B+
1.54ct Radiant
HK$7,846 HKD