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Cushion|Lab Grown|IGI

1.05ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG816610575

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

Certificate IGI LG816610575

Diamond specifications and retailer prices

From €303 EUR
$339 USD
As of October 30, 2026
Save €1,308 EUR (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,611 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.05ct lab-grown cushion diamond

This 1.05ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816610575 or 816610575. Listed at 14 retailers as of October 30, 2026, with prices from €303 to €1,611, a €1,308 spread on the same certified stone. Brilliant Earth lists it at €1,611. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle42.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816610575
Dimensions5.85 × 5.84 × 4.06 mm
L/W Ratio1.00
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
5.85 mm5.84 mm1.05 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816610575
Side View
Table 63.0%Crown 35.8°Girdle: MED-STKPavilion 42.7°Culet: NoneDepth 69.5%

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: €1,611 EUR|Low: €303 EUR|High: €1,907 EUR|Avg: €854 EUR|-15.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 13€303 EUR
Retailer 2€357 EUR
Retailer 6€378 EUR
Retailer 3€550 EUR
Retailer 8€552 EUR
Retailer 12€569 EUR
Retailer 11€573 EUR
Retailer 9€579 EUR
Retailer 7€599 EUR
Retailer 4€1,125 EUR
Retailer 5€1,199 EUR
Retailer 14€1,352 EUR
Retailer 10€1,364 EUR
Brilliant Earth€1,611 EUR

38 data points across 14 retailers

14 retailers€303 EUR to €1,611 EUR

A
Cheapest Retailer
-
€303 EUR
$339 USD
Final sale: no returns
A
Retailer 2
-
€357 EUR
£314 GBP
View
Retailer 3
-
€378 EUR
$422 USD
View
Price last confirmed 19 days ago
A
Retailer 4
-
€550 EUR
$615 USD
View
A
Retailer 5
-
€552 EUR
View
A
Retailer 6
-
€569 EUR
$636 USD
View
A
Retailer 7
-
€573 EUR
$640 USD
View
A
Retailer 8
-
€579 EUR
ZAR 10,449 ZAR
View
A
Retailer 9
-
€599 EUR
£527 GBP
View
B+
Retailer 10
-
€1,125 EUR
$1,257 USD
View
Retailer 11
-
€1,199 EUR
$1,340 USD
View
Price last confirmed 12 days ago
B
Retailer 12
-
€1,352 EUR
£1,189 GBP
View
B
Retailer 13
-
€1,364 EUR
$1,524 USD
View
Most Expensive
B
Brilliant Earth
21019001A · Oct 30
€1,611 EUR
$1,800 USD
View
13 more retailers have this diamond
Prices start from €303 EURSave up to €1,308 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
1.05ct Cushion
€303 EUR