Cushion|Lab Grown|IGI

1.20ct E FL Cushion Lab Grown Diamond

VG • E/FL • IGI LG830620137

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830620137

Diamond specifications and retailer prices

From €382 EUR
$427 USD
As of October 30, 2026
Save €1,582 EUR (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,964 EUR at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.2ct lab-grown cushion diamond

This 1.2ct 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 LG830620137 or 830620137. Listed at 11 retailers as of October 30, 2026, with prices from €382 to €1,964, a €1,582 spread on the same certified stone. Helzberg Diamonds lists it at €1,964. 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

1.20
Carat
E
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620137
Dimensions7.78 × 5.28 × 3.54 mm
L/W Ratio1.47
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
7.78 mm5.28 mm1.20 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620137
Side View
Table 62.0%Crown 35.5°Girdle: STK-VTKPavilion 38.2°Culet: NoneDepth 67.0%

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 30
Current: €1,964 EUR|Low: €382 EUR|High: €2,274 EUR|Avg: €975 EUR
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 11€382 EUR
Retailer 8€449 EUR
Retailer 4€555 EUR
Retailer 5€631 EUR
Retailer 7€674 EUR
Retailer 9€735 EUR
Retailer 2€760 EUR
Retailer 3€1,348 EUR
Retailer 10€1,395 EUR
Retailer 6€1,593 EUR
Helzberg Diamonds€1,964 EUR

3 data points across 11 retailers

11 retailers€382 EUR to €1,964 EUR

A
Cheapest Retailer
-
€382 EUR
$427 USD
Final sale: no returns
A
Retailer 2
-
€449 EUR
£395 GBP
View
A
Retailer 3
-
€555 EUR
$620 USD
View
A
Retailer 4
-
€631 EUR
$705 USD
View
A
Retailer 5
-
€674 EUR
$753 USD
View
A
Retailer 6
-
€735 EUR
$821 USD
View
A
Retailer 7
-
€760 EUR
£669 GBP
View
B
Retailer 8
-
€1,348 EUR
SGD 2,035 SGD
View
B
Retailer 9
-
€1,395 EUR
$1,559 USD
View
B
Retailer 10
-
€1,593 EUR
$1,780 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJGMIGHJN · Oct 31
€1,964 EUR
$2,194 USD
View
10 more retailers have this diamond
Prices start from €382 EURSave up to €1,582 EUR

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
1.20ct Cushion
€382 EUR