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Cushion|Lab Grown|IGI

1.56ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG538298330

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG538298330

Diamond specifications and retailer prices

From HK$1,671 HKD
$213 USD
As of October 28, 2026
Save HK$8,215 HKD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$9,886 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.56ct lab-grown cushion diamond

This 1.56ct lab-grown cushion 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 LG538298330 or 538298330. Listed at 13 retailers as of October 28, 2026, with prices from HK$1,671 to HK$9,886, a HK$8,215 spread on the same certified stone. Brilliant Earth lists it at HK$9,886. 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 angle36.2°
Pavilion angle29.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538298330
Dimensions7.63 × 6.06 × 3.93 mm
L/W Ratio1.26
Girdle conditionFaceted
Culet sizePointed
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
7.63 mm6.06 mm1.56 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG538298330
Side View
Table 58.5%Crown 36.2°Girdle: MED-THKPavilion 29.9°Culet: NoneDepth 64.9%

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 28
Current: HK$9,886 HKD|Low: HK$1,671 HKD|High: HK$10,671 HKD|Avg: HK$4,519 HKD|-7.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 9HK$1,671 HKD
Retailer 7HK$1,860 HKD
Retailer 5HK$2,511 HKD
Retailer 3HK$3,065 HKD
Retailer 2HK$3,379 HKD
Retailer 10HK$3,716 HKD
Retailer 8HK$4,488 HKD
Retailer 6HK$4,700 HKD
Retailer 4HK$8,729 HKD
Brilliant EarthHK$9,886 HKD

43 data points across 10 retailers

13 retailersHK$1,671 HKD to HK$9,886 HKD

A
Cheapest Retailer
-
HK$1,671 HKD
$213 USD
Final sale: no returns
A
Retailer 2
-
HK$1,860 HKD
$237 USD
View
B+
Retailer 3
-
HK$2,511 HKD
$320 USD
View
A
Retailer 4
-
HK$3,065 HKD
€372 EUR
View
A
Retailer 5
-
HK$3,379 HKD
£339 GBP
View
A
Retailer 6
-
HK$3,716 HKD
$474 USD
View
A
Retailer 7
-
HK$3,743 HKD
$477 USD
View
B+
Retailer 8
-
HK$4,488 HKD
$572 USD
View
B+
Retailer 9
-
HK$4,700 HKD
$599 USD
View
B+
Retailer 10
-
HK$6,393 HKD
$815 USD
View
B
Retailer 11
-
HK$8,729 HKD
£876 GBP
View
B
Retailer 12
-
HK$9,138 HKD
$1,165 USD
View
Most Expensive
B
Brilliant Earth
10789106A · Oct 29
HK$9,886 HKD
$1,260 USD
View
12 more retailers have this diamond
Prices start from HK$1,671 HKDSave up to HK$8,215 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 Cushion
HK$1,671 HKD