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Cushion|Lab Grown|IGI

1.52ct G SI1 Cushion Lab Grown Diamond

VG • G/SI1 • IGI LG400934998

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

Certificate IGI LG400934998

Diamond specifications and retailer prices

From $411 USD
As of October 30, 2026
Save $14 USD (3%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $835 USD at Rare Carat · As of October 19, 2026
View at Rare Carat

About this 1.52ct lab-grown cushion diamond

This 1.52ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG400934998 or 400934998. Listed at 3 retailers as of October 30, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.52
Carat
G
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG400934998
Dimensions6.71 × 6.43 × 4.24 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.71 mm6.43 mm1.52 ctG / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG400934998
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 65.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $835 USD|Low: $386 USD|High: $850 USD|Avg: $553 USD|-1.8%
Rare Carat
Retailer 2
Retailer 3
October 31, 2026
Retailer 3$411 USD
Retailer 2$425 USD
Rare Carat$835 USD

41 data points across 3 retailers

3 retailers$411 USD to $425 USD

B+
Cheapest Retailer
-
$411 USD
B+
Retailer 2
-
$425 USD
£334 GBP
View
Most Expensive
Rare Carat
26A400934998 · Oct 19
$835 USD
View
Price last confirmed 12 days ago
2 more retailers have this diamond
Prices start from $411 USDSave up to $14 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+
1.52ct Cushion
$411 USD