Cushion|Lab Grown|IGI

1.01ct E FL Cushion Lab Grown Diamond

VG • E/FL • IGI LG831690477

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831690477

Diamond specifications and retailer prices

From $520 USD
As of October 29, 2026
Save $1,310 USD (72%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,830 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.01ct lab-grown cushion diamond

This 1.01ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG831690477 or 831690477. Listed at 6 retailers as of October 29, 2026, with prices from $520 to $1,830, a $1,310 spread on the same certified stone. Brilliant Earth lists it at $1,830. 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

1.01
Carat
E
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831690477
Dimensions7.15 × 5.04 × 3.43 mm
L/W Ratio1.42
Girdle conditionFaceted
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
7.15 mm5.04 mm1.01 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831690477
Side View
Table 60.0%Crown 33.5°Girdle: STK-THKPavilion 36.4°Culet: NoneDepth 68.1%

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: Oct 29
Current: $1,830 USD|Low: $520 USD|High: $1,830 USD|Avg: $964 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 5$520 USD
Retailer 2$593 USD
Retailer 4$639 USD
Retailer 6$993 USD
Retailer 3$1,212 USD
Brilliant Earth$1,830 USD

1 data point across 6 retailers

6 retailers$520 USD to $1,830 USD

A
Cheapest Retailer
-
$520 USD
Retailer 2
-
$593 USD
View
A
Retailer 3
-
$639 USD
£503 GBP
View
B+
Retailer 4
-
$993 USD
SGD 1,342 SGD
View
B
Retailer 5
-
$1,212 USD
View
Most Expensive
B
Brilliant Earth
22348535A · Oct 29
$1,830 USD
View
5 more retailers have this diamond
Prices start from $520 USDSave up to $1,310 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
1.01ct Cushion
$520 USD