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Cushion|Lab Grown|IGI

1.02ct E SI1 Cushion Lab Grown Diamond

GD • E/SI1 • IGI LG478112710

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG478112710

Diamond specifications and retailer prices

From $485 USD
As of October 28, 2026
Save $1,186 USD (71%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,671 USD at MOH London · As of October 25, 2026
View at MOH London

About this 1.02ct lab-grown cushion diamond

This 1.02ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG478112710 or 478112710. Listed at 5 retailers as of October 25, 2026, with prices from $485 to $1,671, a $1,186 spread on the same certified stone. MOH London lists it at $1,671. 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

1.02
Carat
E
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478112710
Dimensions5.74 × 5.58 × 3.73 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.74 mm5.58 mm1.02 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478112710
Side View
Table 59.5%Crown 37.4°Girdle: MED-THKPavilion 33.9°Culet: NoneDepth 66.8%

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: Oct 28
Current: $1,671 USD|Low: $457 USD|High: $1,689 USD|Avg: $813 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 6$457 USD
Retailer 4$485 USD
Retailer 3$651 USD
Retailer 5$673 USD
Retailer 2$747 USD
Retailer 7$1,116 USD
MOH London$1,671 USD

40 data points across 7 retailers

5 retailers$485 USD to $1,671 USD

B+
Cheapest Retailer
-
$485 USD
B
Retailer 2
-
$651 USD
€620 EUR
View
B
Retailer 3
-
$673 USD
View
B
Retailer 4
-
$747 USD
£588 GBP
View
Most Expensive
C
MOH London
LG478112710 · Oct 25
$1,671 USD
£1,316 GBP
View
4 more retailers have this diamond
Prices start from $485 USDSave up to $1,186 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+
1.02ct Cushion
$485 USD