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Cushion|Lab Grown|IGI

1.63ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG680521351

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG680521351

Diamond specifications and retailer prices

From HK$1,852 HKD
$236 USD
As of October 28, 2026
Save HK$13,840 HKD (88%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$15,691 HKD at Do Amore Diamonds · As of October 27, 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 LG680521351 or 680521351. Listed at 5 retailers as of October 27, 2026, with prices from HK$1,852 to HK$15,691, a HK$13,840 spread on the same certified stone. Do Amore Diamonds lists it at HK$15,691. 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 angle34.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG680521351
Dimensions6.90 × 6.77 × 4.51 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.90 mm6.77 mm1.63 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG680521351
Side View
Table 60.0%Crown 34.1°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 66.6%

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$15,691 HKD|Low: HK$1,169 HKD|High: HK$15,848 HKD|Avg: HK$6,619 HKD|+7.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 25, 2026
Retailer 5HK$1,852 HKD
Retailer 4HK$3,499 HKD
Retailer 9HK$3,635 HKD
Retailer 6HK$4,252 HKD
Retailer 10HK$4,370 HKD
Retailer 7HK$6,285 HKD
Retailer 3HK$6,865 HKD
Retailer 2HK$8,968 HKD
Retailer 8HK$10,906 HKD
Do Amore DiamondsHK$15,691 HKD

12 data points across 10 retailers

5 retailersHK$1,852 HKD to HK$15,691 HKD

A
Cheapest Retailer
-
HK$1,852 HKD
$236 USD
Final sale: no returns
B+
Retailer 2
-
HK$3,499 HKD
$446 USD
View
Retailer 3
-
HK$6,865 HKD
$875 USD
View
Price last confirmed 9 days ago
B
Retailer 4
-
HK$8,968 HKD
£900 GBP
View
Most Expensive
B
Do Amore Diamonds
27-119BF3A22 · Oct 27
HK$15,691 HKD
$2,000 USD
View
4 more retailers have this diamond
Prices start from HK$1,852 HKDSave up to HK$13,840 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$1,852 HKD