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Cushion|Lab Grown|IGI

0.91ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG608366757

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG608366757

Diamond specifications and retailer prices

From €126 EUR
HK$1,100 HKD
As of October 30, 2026
Save €572 EUR (82%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €698 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 0.91ct lab-grown cushion diamond

This 0.91ct lab-grown cushion sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG608366757 or 608366757. Listed at 3 retailers as of October 30, 2026, with prices from €126 to €698, a €572 spread on the same certified stone. Brilliant Earth lists it at €698. 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

0.91
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle39.5°
Pavilion angle32.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG608366757
Dimensions5.44 × 5.16 × 3.56 mm
L/W Ratio1.05
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
5.44 mm5.16 mm0.91 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG608366757
Side View
Table 66.0%Crown 39.5°Girdle: THK-VTKPavilion 32.3°Culet: NoneDepth 69.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €698 EUR|Low: €126 EUR|High: €779 EUR|Avg: €408 EUR|-10.3%
Brilliant Earth
Retailer 2
Retailer 3
October 30, 2026
Retailer 3€126 EUR
Retailer 2€312 EUR
Brilliant Earth€698 EUR

2 data points across 3 retailers

3 retailers€126 EUR to €698 EUR

A
Cheapest Retailer
-
€126 EUR
HK$1,100 HKD
B+
Retailer 2
-
€312 EUR
SGD 471 SGD
View
Most Expensive
B
Brilliant Earth
14421224A · Oct 30
€698 EUR
$780 USD
View
2 more retailers have this diamond
Prices start from €126 EURSave up to €572 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
0.91ct Cushion
€126 EUR