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Radiant|Lab Grown|IGI

1.56ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG537215993

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

Certificate IGI LG537215993

Diamond specifications and retailer prices

From HK$1,428 HKD
$182 USD
As of October 30, 2026
Save HK$7,360 HKD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$8,788 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.56ct lab-grown radiant diamond

This 1.56ct 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 LG537215993 or 537215993. Listed at 18 retailers as of October 29, 2026, with prices from HK$1,428 to HK$8,788, a HK$7,360 spread on the same certified stone. Brilliant Earth lists it at HK$8,788. 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

1.56
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG537215993
Dimensions8.39 × 5.66 × 3.80 mm
L/W Ratio1.48
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
8.39 mm5.66 mm1.56 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG537215993
Side View
Table 61.0%Crown 32.2°Girdle: MED-STKPavilion 34.3°Culet: NoneDepth 67.1%

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 30
Current: HK$8,788 HKD|Low: HK$1,342 HKD|High: HK$8,788 HKD|Avg: HK$4,143 HKD
Brilliant Earth
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
October 30, 2026
Retailer 8HK$1,428 HKD
Retailer 6HK$1,734 HKD
Retailer 13HK$1,773 HKD
Retailer 2HK$1,828 HKD
Retailer 10HK$2,280 HKD
Retailer 3HK$2,900 HKD
Retailer 9HK$3,131 HKD
Retailer 11HK$3,206 HKD
Retailer 7HK$4,378 HKD
Retailer 4HK$4,449 HKD
Retailer 5HK$5,571 HKD
Retailer 12HK$6,133 HKD
Retailer 15HK$6,787 HKD
Retailer 14HK$8,141 HKD
Brilliant EarthHK$8,788 HKD

40 data points across 15 retailers

18 retailersHK$1,428 HKD to HK$8,788 HKD

A
Cheapest Retailer
-
HK$1,428 HKD
$182 USD
A
Retailer 2
-
HK$1,624 HKD
$207 USD
View
A
Retailer 3
-
HK$1,734 HKD
$221 USD
View
A
Retailer 4
-
HK$1,773 HKD
$226 USD
View
A
Retailer 5
-
HK$1,828 HKD
$233 USD
View
Final sale: no returns
A
Retailer 6
-
HK$2,280 HKD
£229 GBP
View
A
Retailer 7
-
HK$2,900 HKD
€352 EUR
View
B+
Retailer 8
-
HK$3,131 HKD
$399 USD
View
A
Retailer 9
-
HK$3,206 HKD
£322 GBP
View
A
Retailer 10
-
HK$3,704 HKD
$472 USD
View
B+
Retailer 11
-
HK$4,378 HKD
$558 USD
View
B+
Retailer 12
-
HK$4,449 HKD
$567 USD
View
B+
Retailer 13
-
HK$5,571 HKD
$710 USD
View
B
Retailer 14
-
HK$5,748 HKD
£577 GBP
View
B+
Retailer 15
-
HK$6,133 HKD
$782 USD
View
Retailer 16
-
HK$6,787 HKD
$865 USD
View
Price last confirmed 11 days ago
B
Retailer 17
-
HK$8,141 HKD
£817 GBP
View
Most Expensive
B
Brilliant Earth
14996947A · Oct 29
HK$8,788 HKD
$1,120 USD
View
17 more retailers have this diamond
Prices start from HK$1,428 HKDSave up to HK$7,360 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
1.56ct Radiant
HK$1,428 HKD