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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 $404 AUD
$284 USD
As of October 28, 2026
Save $1,540 AUD (79%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,932 AUD 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $2,932 AUD|Low: $404 AUD|High: $2,932 AUD|Avg: $923 AUD
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$404 AUD
Retailer 4$448 AUD
Retailer 10$527 AUD
Retailer 3$605 AUD
Retailer 12$605 AUD
Retailer 11$770 AUD
Retailer 8$812 AUD
Retailer 5$830 AUD
Retailer 7$841 AUD
Retailer 2$852 AUD
Retailer 13$1,045 AUD
Retailer 15$1,102 AUD
Retailer 14$1,559 AUD
Retailer 9$1,806 AUD
Brilliant Earth$2,932 AUD

41 data points across 15 retailers

18 retailers$404 AUD to $1,944 AUD

A
Cheapest Retailer
-
$404 AUD
$284 USD
Final sale: no returns
A
Retailer 2
-
$448 AUD
$315 USD
View
A
Retailer 3
-
$527 AUD
£291 GBP
View
A
Retailer 4
-
$605 AUD
$425 USD
View
B+
Retailer 5
-
$605 AUD
$425 USD
View
A
Retailer 6
-
$770 AUD
ZAR 8,738 ZAR
View
A
Retailer 7
-
$812 AUD
€543 EUR
View
A
Retailer 8
-
$830 AUD
$583 USD
View
A
Retailer 9
-
$841 AUD
$591 USD
View
A
Retailer 10
-
$852 AUD
£471 GBP
View
B+
Retailer 11
-
$1,040 AUD
View
Price last confirmed 32 days ago
B+
Retailer 12
-
$1,045 AUD
View
B+
Retailer 13
-
$1,102 AUD
$774 USD
View
B
Retailer 14
-
$1,514 AUD
$1,064 USD
View
B+
Retailer 15
-
$1,559 AUD
$1,095 USD
View
Price last confirmed 10 days ago
B
Retailer 16
-
$1,806 AUD
£999 GBP
View
B
Retailer 17
-
$1,944 AUD
$1,366 USD
View
Most Expensive
B
Brilliant Earth
21312401A · Oct 22
$2,932 AUD
$2,060 USD
View
Price last confirmed 7 days ago
17 more retailers have this diamond
Prices start from $404 AUDSave up to $1,540 AUD

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
$404 AUD