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Cushion|Lab Grown|IGI

1.89ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846662378

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846662378

Diamond specifications and retailer prices

From €621 EUR
£546 GBP
As of November 1, 2026
Save €3,175 EUR (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,795 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.89ct lab-grown cushion diamond

This 1.89ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846662378 or 846662378. Listed at 11 retailers as of October 31, 2026, with prices from €621 to €3,795, a €3,175 spread on the same certified stone. Brilliant Earth lists it at €3,795. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662378
Dimensions7.98 × 6.63 × 4.57 mm
L/W Ratio1.20
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
7.98 mm6.63 mm1.89 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662378
Side View
Table 61.0%Crown 35.4°Girdle: STK-THKPavilion 37.7°Culet: NoneDepth 68.9%

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 1
Current: €3,795 EUR|Low: €621 EUR|High: €3,795 EUR|Avg: €1,875 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 4€621 EUR
Retailer 5€707 EUR
Retailer 6€716 EUR
Retailer 2€909 EUR
Retailer 8€1,413 EUR
Retailer 7€1,462 EUR
Retailer 9€2,016 EUR
Retailer 10€2,198 EUR
Retailer 11€3,006 EUR
Retailer 3€3,285 EUR
Brilliant Earth€3,795 EUR

16 data points across 11 retailers

11 retailers€621 EUR to €3,795 EUR

A
Cheapest Retailer
-
€621 EUR
£546 GBP
A
Retailer 2
-
€707 EUR
$790 USD
View
A
Retailer 3
-
€716 EUR
$800 USD
View
A
Retailer 4
-
€909 EUR
$1,015 USD
View
A
Retailer 5
-
€1,413 EUR
View
A
Retailer 6
-
€1,462 EUR
$1,633 USD
View
B+
Retailer 7
-
€2,016 EUR
$2,252 USD
View
B+
Retailer 8
-
€2,198 EUR
$2,456 USD
View
B+
Retailer 9
-
€3,006 EUR
£2,644 GBP
View
Retailer 10
-
€3,285 EUR
$3,670 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
22155369A · Oct 31
€3,795 EUR
$4,240 USD
View
10 more retailers have this diamond
Prices start from €621 EURSave up to €3,175 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
1.89ct Cushion
€621 EUR