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Radiant|Lab Grown|IGI

1.50ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG517284418

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

Certificate IGI LG517284418

Diamond specifications and retailer prices

From HK$7,138 HKD
£716 GBP
As of October 29, 2026
Save HK$1,925 HKD (21%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$9,063 HKD at Taylor and Hart · As of October 26, 2026
View at Taylor and Hart

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG517284418 or 517284418. Listed at 2 retailers as of October 26, 2026, with prices from HK$7,138 to HK$9,063, a HK$1,925 spread on the same certified stone. Taylor and Hart lists it at HK$9,063. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle27.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG517284418
Dimensions8.05 × 5.53 × 3.61 mm
L/W Ratio1.46
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
8.05 mm5.53 mm1.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG517284418
Side View
Table 63.5%Crown 40.4°Girdle: MED-STKPavilion 27.8°Culet: NoneDepth 65.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: HK$7,138 HKD|Low: HK$4,783 HKD|High: HK$9,063 HKD|Avg: HK$6,122 HKD
Retailer 1
Retailer 2
Retailer 3
Taylor and Hart
September 26, 2026
Retailer 2HK$4,783 HKD
Retailer 3HK$6,646 HKD
Retailer 1HK$7,138 HKD
Taylor and HartHK$9,063 HKD

10 data points across 4 retailers

2 retailersHK$7,138 HKD to HK$9,063 HKD

B
Cheapest Retailer
-
HK$7,138 HKD
£716 GBP
Most Expensive
B
Taylor and Hart
35ZIMZC · Oct 26
HK$9,063 HKD
$1,155 USD
View
1 more retailer has this diamond
Prices start from HK$7,138 HKDSave up to HK$1,925 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
1.50ct Radiant
HK$7,138 HKD