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Cushion|Lab Grown|IGI

1.38ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG625480578

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

Certificate IGI LG625480578

Diamond specifications and retailer prices

From $434 USD
As of November 3, 2026
Save $799 USD (65%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,233 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.38ct lab-grown cushion diamond

This 1.38ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG625480578 or 625480578. Listed at 8 retailers as of November 3, 2026, with prices from $434 to $1,233, a $799 spread on the same certified stone. MOH London lists it at $1,233. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.38
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625480578
Dimensions6.59 × 6.51 × 4.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.59 mm6.51 mm1.38 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625480578
Side View
Table 60.0%Crown 34.8°Girdle: STK-THKPavilion 38.5°Culet: NoneDepth 64.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: $1,233 USD|Low: $434 USD|High: $1,251 USD|Avg: $701 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 7$434 USD
Retailer 5$475 USD
Retailer 6$527 USD
Retailer 3$532 USD
Retailer 2$581 USD
Retailer 4$675 USD
Retailer 8$1,162 USD
MOH London$1,233 USD

42 data points across 8 retailers

8 retailers$434 USD to $1,233 USD

A
Cheapest Retailer
-
$434 USD
A
Retailer 2
-
$475 USD
View
A
Retailer 3
-
$527 USD
View
A
Retailer 4
-
$532 USD
View
B+
Retailer 5
-
$581 USD
View
B+
Retailer 6
-
$675 USD
View
B
Retailer 7
-
$1,162 USD
View
Most Expensive
B
MOH London
LG625480578 · Nov 5
$1,233 USD
£971 GBP
View
7 more retailers have this diamond
Prices start from $434 USDSave up to $799 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
1.38ct Cushion
$434 USD