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Cushion|Lab Grown|IGI

4.22ct G SI1 Cushion Lab Grown Diamond

GD • G/SI1 • IGI LG593384207

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG593384207

Diamond specifications and retailer prices

From $642 USD
As of November 3, 2026
Save $2,039 USD (76%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,681 USD at Michael Trio · As of November 2, 2026
View at Michael Trio

About this 4.22ct lab-grown cushion diamond

This 4.22ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG593384207 or 593384207. Listed at 7 retailers as of November 2, 2026, with prices from $642 to $2,681, a $2,039 spread on the same certified stone. Michael Trio lists it at $2,681. 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

4.22
Carat
G
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG593384207
Dimensions9.36 × 9.33 × 6.40 mm
L/W Ratio1.00
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
9.36 mm9.33 mm4.22 ctG / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG593384207
Side View
Table 60.0%Crown 35.3°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 68.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $2,681 USD|Low: $642 USD|High: $2,700 USD|Avg: $1,444 USD
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 19, 2026
Retailer 5$642 USD
Retailer 3$770 USD
Retailer 4$922 USD
Retailer 7$1,175 USD
Retailer 6$1,219 USD
Retailer 2$2,655 USD
Michael Trio$2,681 USD

6 data points across 7 retailers

7 retailers$642 USD to $2,681 USD

A
Cheapest Retailer
-
$642 USD
Final sale: no returns
A
Retailer 2
-
$770 USD
View
B+
Retailer 3
-
$922 USD
HK$7,200 HKD
View
B+
Retailer 4
-
$1,175 USD
View
Retailer 5
-
$1,219 USD
View
Price last confirmed 19 days ago
Retailer 6
-
$2,655 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Michael Trio
1388040934 · Nov 2
$2,681 USD
SGD 3,623 SGD
View
6 more retailers have this diamond
Prices start from $642 USDSave up to $2,039 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
4.22ct Cushion
$642 USD