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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 $506 NZD
$284 USD
As of October 28, 2026
Save $1,926 NZD (79%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,668 NZD 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

How it works →
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: $3,668 NZD|Low: $506 NZD|High: $3,668 NZD|Avg: $1,163 NZD
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 6$506 NZD
Retailer 4$561 NZD
Retailer 2$657 NZD
Retailer 3$757 NZD
Retailer 12$757 NZD
Retailer 11$963 NZD
Retailer 9$1,015 NZD
Retailer 5$1,038 NZD
Retailer 7$1,052 NZD
Retailer 8$1,069 NZD
Retailer 13$1,307 NZD
Retailer 15$1,378 NZD
Retailer 14$1,950 NZD
Retailer 10$2,259 NZD
Brilliant Earth$3,668 NZD

42 data points across 15 retailers

18 retailers$506 NZD to $2,431 NZD

A
Cheapest Retailer
-
$506 NZD
$284 USD
Final sale: no returns
A
Retailer 2
-
$561 NZD
$315 USD
View
A
Retailer 3
-
$657 NZD
£291 GBP
View
A
Retailer 4
-
$757 NZD
$425 USD
View
B+
Retailer 5
-
$757 NZD
$425 USD
View
A
Retailer 6
-
$963 NZD
ZAR 8,738 ZAR
View
A
Retailer 7
-
$1,015 NZD
€543 EUR
View
A
Retailer 8
-
$1,038 NZD
$583 USD
View
A
Retailer 9
-
$1,052 NZD
$591 USD
View
A
Retailer 10
-
$1,069 NZD
£473 GBP
View
Retailer 11
-
$1,301 NZD
A$1,124 AUD
View
Price last confirmed 33 days ago
B+
Retailer 12
-
$1,307 NZD
A$1,129 AUD
View
B+
Retailer 13
-
$1,378 NZD
$774 USD
View
B
Retailer 14
-
$1,894 NZD
$1,064 USD
View
Retailer 15
-
$1,950 NZD
$1,095 USD
View
Price last confirmed 11 days ago
B
Retailer 16
-
$2,259 NZD
£999 GBP
View
B
Retailer 17
-
$2,431 NZD
$1,366 USD
View
Most Expensive
Brilliant Earth
21312401A · Oct 22
$3,668 NZD
$2,060 USD
View
Price last confirmed 7 days ago
17 more retailers have this diamond
Prices start from $506 NZDSave up to $1,926 NZD

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
$506 NZD