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Cushion|Lab Grown|IGI

1.00ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG816624108

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

Certificate IGI LG816624108

Diamond specifications and retailer prices

From €326 EUR
$364 USD
As of October 30, 2026
Save €1,429 EUR (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,754 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816624108 or 816624108. Listed at 13 retailers as of October 30, 2026, with prices from €326 to €1,754, a €1,429 spread on the same certified stone. Brilliant Earth lists it at €1,754. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816624108
Dimensions5.94 × 5.76 × 3.74 mm
L/W Ratio1.03
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
5.94 mm5.76 mm1.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816624108
Side View
Table 62.0%Crown 36.3°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 64.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,754 EUR|Low: €239 EUR|High: €2,327 EUR|Avg: €875 EUR|-24.6%
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
November 1, 2026
Retailer 11€326 EUR
Retailer 5€372 EUR
Retailer 10€523 EUR
Retailer 3€528 EUR
Retailer 12€584 EUR
Retailer 6€585 EUR
Retailer 8€621 EUR
Retailer 2€641 EUR
Retailer 4€1,190 EUR
Retailer 13€1,202 EUR
Retailer 9€1,427 EUR
Retailer 7€1,456 EUR
Brilliant Earth€1,754 EUR

36 data points across 13 retailers

13 retailers€326 EUR to €1,754 EUR

A
Cheapest Retailer
-
€326 EUR
$364 USD
Final sale: no returns
Retailer 2
-
€372 EUR
$416 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
€523 EUR
$584 USD
View
A
Retailer 4
-
€528 EUR
$590 USD
View
A
Retailer 5
-
€584 EUR
$653 USD
View
A
Retailer 6
-
€585 EUR
View
A
Retailer 7
-
€621 EUR
ZAR 11,209 ZAR
View
A
Retailer 8
-
€641 EUR
£564 GBP
View
Retailer 9
-
€1,190 EUR
$1,330 USD
View
Price last confirmed 13 days ago
B
Retailer 10
-
€1,202 EUR
$1,343 USD
View
B
Retailer 11
-
€1,427 EUR
$1,595 USD
View
B+
Retailer 12
-
€1,456 EUR
£1,281 GBP
View
Most Expensive
B
Brilliant Earth
21018360A · Oct 31
€1,754 EUR
$1,960 USD
View
12 more retailers have this diamond
Prices start from €326 EURSave up to €1,429 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
1.00ct Cushion
€326 EUR