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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 $284 USD
As of October 28, 2026
Save $1,082 USD (79%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,060 USD 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $2,060 USD|Low: $284 USD|High: $2,060 USD|Avg: $649 USD
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 29, 2026
Retailer 6$284 USD
Retailer 4$315 USD
Retailer 10$370 USD
Retailer 3$425 USD
Retailer 12$425 USD
Retailer 11$541 USD
Retailer 8$570 USD
Retailer 5$583 USD
Retailer 7$591 USD
Retailer 2$598 USD
Retailer 13$734 USD
Retailer 15$774 USD
Retailer 14$1,095 USD
Retailer 9$1,269 USD
Brilliant Earth$2,060 USD

41 data points across 15 retailers

18 retailers$284 USD to $1,366 USD

A
Cheapest Retailer
-
$284 USD
Final sale: no returns
A
Retailer 2
-
$315 USD
View
A
Retailer 3
-
$370 USD
£291 GBP
View
A
Retailer 4
-
$425 USD
View
B+
Retailer 5
-
$425 USD
View
A
Retailer 6
-
$541 USD
ZAR 8,738 ZAR
View
A
Retailer 7
-
$570 USD
€543 EUR
View
A
Retailer 8
-
$583 USD
View
A
Retailer 9
-
$591 USD
View
A
Retailer 10
-
$598 USD
£471 GBP
View
B+
Retailer 11
-
$731 USD
A$1,124 AUD
View
Price last confirmed 32 days ago
B+
Retailer 12
-
$734 USD
A$1,129 AUD
View
B+
Retailer 13
-
$774 USD
View
B
Retailer 14
-
$1,064 USD
View
B+
Retailer 15
-
$1,095 USD
View
Price last confirmed 10 days ago
B
Retailer 16
-
$1,269 USD
£999 GBP
View
B
Retailer 17
-
$1,366 USD
View
Most Expensive
B
Brilliant Earth
21312401A · Oct 22
$2,060 USD
View
Price last confirmed 7 days ago
17 more retailers have this diamond
Prices start from $284 USDSave up to $1,082 USD

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
$284 USD