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Cushion|Lab Grown|IGI

1.62ct F SI1 Cushion Lab Grown Diamond

VG • F/SI1 • IGI LG617428207

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

Certificate IGI LG617428207

Diamond specifications and retailer prices

From $407 USD
As of November 1, 2026
Save $728 USD (64%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,135 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.62ct lab-grown cushion diamond

This 1.62ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG617428207 or 617428207. Listed at 6 retailers as of November 1, 2026, with prices from $407 to $1,135, a $728 spread on the same certified stone. MOH London lists it at $1,135. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.62
Carat
F
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617428207
Dimensions6.56 × 6.26 × 4.46 mm
L/W Ratio1.05
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
6.56 mm6.26 mm1.62 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617428207
Side View
Table 62.0%Crown 36.7°Girdle: STK-THKPavilion 33.9°Culet: NoneDepth 71.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,135 USD|Low: $407 USD|High: $1,149 USD|Avg: $652 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6$407 USD
Retailer 4$444 USD
Retailer 5$517 USD
Retailer 2$525 USD
Retailer 3$900 USD
MOH London$1,135 USD

40 data points across 6 retailers

6 retailers$407 USD to $1,135 USD

A
Cheapest Retailer
-
$407 USD
B+
Retailer 2
-
$444 USD
View
B+
Retailer 3
-
$517 USD
View
A
Retailer 4
-
$525 USD
£414 GBP
View
Retailer 5
-
$900 USD
View
Price last confirmed 28 days ago
Most Expensive
B
MOH London
LG617428207 · Nov 1
$1,135 USD
£894 GBP
View
5 more retailers have this diamond
Prices start from $407 USDSave up to $728 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
1.62ct Cushion
$407 USD