CaratHunter
Plans
Cushion|Lab Grown|IGI

1.00ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG818640099

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818640099

Diamond specifications and retailer prices

From €565 EUR
As of November 3, 2026
Save €1,751 EUR (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €2,317 EUR at Brilliant Earth · As of November 4, 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 LG818640099 or 818640099. Listed at 16 retailers as of November 3, 2026, with prices from €565 to €2,317, a €1,751 spread on the same certified stone. Brilliant Earth lists it at €2,317. 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
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818640099
Dimensions6.98 × 5.35 × 3.55 mm
L/W Ratio1.30
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
6.98 mm5.35 mm1.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818640099
Side View
Table 62.0%Crown 33.8°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 66.4%

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: Nov 3
Current: €2,317 EUR|Low: €340 EUR|High: €2,388 EUR|Avg: €1,135 EUR|-3.0%
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
Retailer 15
Retailer 16
November 4, 2026
Retailer 16€478 EUR
Retailer 15€565 EUR
Retailer 14€579 EUR
Retailer 13€652 EUR
Retailer 7€710 EUR
Retailer 5€720 EUR
Retailer 11€794 EUR
Retailer 2€871 EUR
Retailer 9€913 EUR
Retailer 8€1,149 EUR
Retailer 12€1,159 EUR
Retailer 6€1,397 EUR
Retailer 4€1,728 EUR
Retailer 3€1,856 EUR
Retailer 10€2,211 EUR
Brilliant Earth€2,317 EUR

40 data points across 16 retailers

16 retailers€565 EUR to €2,317 EUR

Retailer 1
-
€478 EUR
Price last confirmed 17 days ago
Final sale: no returns
A
Retailer 2
-
€565 EUR
View
A
Retailer 3
-
€579 EUR
View
A
Retailer 4
-
€652 EUR
View
A
Retailer 5
-
€710 EUR
View
A
Retailer 6
-
€720 EUR
View
B+
Retailer 7
-
€794 EUR
View
B+
Retailer 8
-
€871 EUR
View
B+
Retailer 9
-
€913 EUR
View
Retailer 10
-
€1,149 EUR
View
Price last confirmed 57 days ago
B+
Retailer 11
-
€1,159 EUR
View
B
Retailer 12
-
€1,397 EUR
View
B
Retailer 13
-
€1,728 EUR
View
B
Retailer 14
-
€1,856 EUR
View
B
Retailer 15
-
€2,211 EUR
View
Most Expensive
B
Brilliant Earth
21086551A · Nov 4
€2,317 EUR
$2,610 USD
View
15 more retailers have this diamond
Prices start from €565 EURSave up to €1,751 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
€565 EUR