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Cushion|Lab Grown|IGI

1.42ct F SI1 Cushion Lab Grown Diamond

VG • F/SI1 • IGI LG605314531

Certificate IGI LG605314531

Diamond specifications and retailer prices

From $814 USD
As of November 6, 2026
Save $306 USD (27%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,120 USD at Zales · As of November 6, 2026
View at Zales

About this 1.42ct lab-grown cushion diamond

This 1.42ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG605314531 or 605314531. Listed at 4 retailers as of November 6, 2026, with prices from $814 to $1,120, a $306 spread on the same certified stone. Zales lists it at $1,120. 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

1.42
Carat
F
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG605314531
Dimensions7.64 × 6.19 × 4.00 mm
L/W Ratio1.23
Top View
7.64 mm6.19 mm1.42 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605314531
Side View
Table 61.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 64.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $814 USD|Low: $814 USD|High: $1,300 USD|Avg: $1,069 USD|-37.4%
Retailer 1
Retailer 2
Retailer 3
Zales
November 6, 2026
Retailer 1$814 USD
Retailer 2$814 USD
Retailer 3$1,120 USD
Zales$1,120 USD

3 data points across 4 retailers

4 retailers$814 USD to $1,120 USD

B+
Cheapest Retailer
-
$814 USD
B+
Retailer 2
-
$814 USD
View
B
Retailer 3
-
$1,120 USD
View
Most Expensive
B
Zales
518824648 · Nov 6
$1,120 USD
View
3 more retailers have this diamond
Prices start from $814 USDSave up to $306 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.

B+
1.42ct Cushion
$814 USD