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Cushion|Lab Grown|IGI

1.83ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG840634991

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840634991

Diamond specifications and retailer prices

From €641 EUR
$716 USD
As of November 1, 2026
Save €3,244 EUR (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €3,885 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.83ct lab-grown cushion diamond

This 1.83ct 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 very-good cut grade and certified by IGI LG840634991 or 840634991. Listed at 17 retailers as of October 31, 2026, with prices from €641 to €3,885, a €3,244 spread on the same certified stone. Brilliant Earth lists it at €3,885. 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

1.83
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634991
Dimensions9.18 × 6.13 × 4.11 mm
L/W Ratio1.50
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
9.18 mm6.13 mm1.83 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634991
Side View
Table 59.0%Crown 34.6°Girdle: MED-THKPavilion 34.8°Culet: NoneDepth 67.0%

Caratlytics Score

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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: Nov 1
Current: €3,885 EUR|Low: €641 EUR|High: €5,245 EUR|Avg: €1,887 EUR|-25.9%
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
Retailer 17
November 1, 2026
Retailer 4€641 EUR
Retailer 10€741 EUR
Retailer 15€810 EUR
Retailer 5€886 EUR
Retailer 16€1,071 EUR
Retailer 11€1,090 EUR
Retailer 12€1,117 EUR
Retailer 14€1,205 EUR
Retailer 17€1,378 EUR
Retailer 13€1,520 EUR
Retailer 6€2,148 EUR
Retailer 3€2,264 EUR
Retailer 7€2,322 EUR
Retailer 2€2,762 EUR
Retailer 9€3,150 EUR
Retailer 8€3,182 EUR
Brilliant Earth€3,885 EUR

14 data points across 17 retailers

17 retailers€641 EUR to €3,885 EUR

A
Cheapest Retailer
-
€641 EUR
$716 USD
Final sale: no returns
A
Retailer 2
-
€741 EUR
£652 GBP
View
A
Retailer 3
-
€810 EUR
$905 USD
View
A
Retailer 4
-
€886 EUR
$990 USD
View
A
Retailer 5
-
€1,071 EUR
$1,197 USD
View
A
Retailer 6
-
€1,090 EUR
£959 GBP
View
A
Retailer 7
-
€1,117 EUR
View
A
Retailer 8
-
€1,205 EUR
ZAR 21,748 ZAR
View
A
Retailer 9
-
€1,378 EUR
$1,540 USD
View
B+
Retailer 10
-
€1,520 EUR
$1,698 USD
View
B+
Retailer 11
-
€2,148 EUR
$2,400 USD
View
B+
Retailer 12
-
€2,264 EUR
$2,529 USD
View
B+
Retailer 13
-
€2,322 EUR
SGD 3,505 SGD
View
B
Retailer 14
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€2,762 EUR
£2,430 GBP
View
B
Retailer 15
-
€3,150 EUR
$3,519 USD
View
B
Retailer 16
-
€3,182 EUR
$3,555 USD
View
Most Expensive
B
Brilliant Earth
21861636A · Oct 31
€3,885 EUR
$4,340 USD
View
16 more retailers have this diamond
Prices start from €641 EURSave up to €3,244 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
1.83ct Cushion
€641 EUR