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Cushion|Lab Grown|IGI

1.63ct E VS1 Cushion Lab Grown Diamond

EX • E/VS1 • IGI LG634481308

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG634481308

Diamond specifications and retailer prices

From HK$2,228 HKD
$284 USD
As of October 28, 2026
Save HK$8,487 HKD (79%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$16,164 HKD at Brilliant Earth · As of October 22, 2026
View at Brilliant Earth

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG634481308 or 634481308. Listed at 18 retailers as of October 28, 2026, with a 381% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.63
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634481308
Dimensions6.85 × 6.85 × 4.47 mm
L/W Ratio1.00
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
6.85 mm6.85 mm1.63 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634481308
Side View
Table 64.0%Crown 35.1°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 65.3%

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 28
Current: HK$16,164 HKD|Low: HK$2,228 HKD|High: HK$16,164 HKD|Avg: HK$5,123 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 6HK$2,228 HKD
Retailer 4HK$2,472 HKD
Retailer 2HK$2,896 HKD
Retailer 3HK$3,335 HKD
Retailer 12HK$3,335 HKD
Retailer 11HK$4,244 HKD
Retailer 9HK$4,474 HKD
Retailer 5HK$4,574 HKD
Retailer 7HK$4,637 HKD
Retailer 8HK$4,709 HKD
Retailer 13HK$5,758 HKD
Retailer 15HK$6,073 HKD
Retailer 14HK$8,592 HKD
Retailer 10HK$9,955 HKD
Brilliant EarthHK$16,164 HKD

42 data points across 15 retailers

18 retailersHK$2,228 HKD to HK$10,715 HKD

A
Cheapest Retailer
-
HK$2,228 HKD
$284 USD
Final sale: no returns
A
Retailer 2
-
HK$2,472 HKD
$315 USD
View
A
Retailer 3
-
HK$2,896 HKD
£291 GBP
View
A
Retailer 4
-
HK$3,335 HKD
$425 USD
View
B+
Retailer 5
-
HK$3,335 HKD
$425 USD
View
A
Retailer 6
-
HK$4,244 HKD
ZAR 8,738 ZAR
View
A
Retailer 7
-
HK$4,474 HKD
€543 EUR
View
A
Retailer 8
-
HK$4,574 HKD
$583 USD
View
A
Retailer 9
-
HK$4,637 HKD
$591 USD
View
A
Retailer 10
-
HK$4,709 HKD
£473 GBP
View
Retailer 11
-
HK$5,733 HKD
A$1,124 AUD
View
Price last confirmed 32 days ago
B+
Retailer 12
-
HK$5,758 HKD
A$1,129 AUD
View
B+
Retailer 13
-
HK$6,073 HKD
$774 USD
View
B
Retailer 14
-
HK$8,345 HKD
$1,064 USD
View
Retailer 15
-
HK$8,592 HKD
$1,095 USD
View
Price last confirmed 11 days ago
B
Retailer 16
-
HK$9,955 HKD
£999 GBP
View
B
Retailer 17
-
HK$10,715 HKD
$1,366 USD
View
Most Expensive
Brilliant Earth
21312401A · Oct 22
HK$16,164 HKD
$2,060 USD
View
Price last confirmed 7 days ago
17 more retailers have this diamond
Prices start from HK$2,228 HKDSave up to HK$8,487 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$2,228 HKD