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Cushion|Lab Grown|IGI

1.63ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG488122840

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG488122840

Diamond specifications and retailer prices

From HK$1,695 HKD
$216 USD
As of October 30, 2026
Save HK$12,820 HKD (88%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$14,515 HKD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.63ct lab-grown cushion diamond

This 1.63ct 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 LG488122840 or 488122840. Listed at 13 retailers as of October 29, 2026, with prices from HK$1,695 to HK$14,515, a HK$12,820 spread on the same certified stone. Do Amore Diamonds lists it at HK$14,515. 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

1.63
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG488122840
Dimensions7.46 × 6.67 × 4.34 mm
L/W Ratio1.12
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
7.46 mm6.67 mm1.63 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG488122840
Side View
Table 62.5%Crown 32.9°Girdle: MediumPavilion 39.1°Culet: NoneDepth 65.1%

Caratlytics Score

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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$3,830 HKD|Low: HK$1,695 HKD|High: HK$12,710 HKD|Avg: HK$5,495 HKD|+4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 9HK$1,695 HKD
Retailer 6HK$1,875 HKD
Retailer 2HK$3,369 HKD
Retailer 1HK$3,830 HKD
Retailer 8HK$4,527 HKD
Retailer 4HK$6,787 HKD
Retailer 7HK$7,615 HKD
Retailer 3HK$8,320 HKD
Retailer 5HK$10,356 HKD

44 data points across 9 retailers

13 retailersHK$1,695 HKD to HK$14,515 HKD

A
Cheapest Retailer
-
HK$1,695 HKD
$216 USD
Final sale: no returns
A
Retailer 2
-
HK$1,875 HKD
$239 USD
View
B+
Retailer 3
-
HK$2,518 HKD
$321 USD
View
A
Retailer 4
-
HK$3,256 HKD
$415 USD
View
A
Retailer 5
-
HK$3,369 HKD
€409 EUR
View
A
Retailer 6
-
HK$3,830 HKD
£384 GBP
View
A
Retailer 7
-
HK$4,527 HKD
$577 USD
View
Retailer 8
-
HK$6,787 HKD
$865 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
HK$6,903 HKD
$880 USD
View
B+
Retailer 10
-
HK$7,615 HKD
$971 USD
View
B+
Retailer 11
-
HK$8,320 HKD
£835 GBP
View
B
Retailer 12
-
HK$10,356 HKD
$1,320 USD
View
Most Expensive
B
Do Amore Diamonds
27-50C0F166E · Oct 29
HK$14,515 HKD
$1,850 USD
View
12 more retailers have this diamond
Prices start from HK$1,695 HKDSave up to HK$12,820 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
1.63ct Cushion
HK$1,695 HKD