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Cushion|Lab Grown|IGI

1.86ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG836616537

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836616537

Diamond specifications and retailer prices

From $721 USD
As of October 30, 2026
Save $3,039 USD (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,760 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.86ct lab-grown cushion diamond

This 1.86ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836616537 or 836616537. Listed at 17 retailers as of October 30, 2026, with prices from $721 to $3,760, a $3,039 spread on the same certified stone. Brilliant Earth lists it at $3,760. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.86
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836616537
Dimensions8.83 × 6.17 × 4.20 mm
L/W Ratio1.43
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
8.83 mm6.17 mm1.86 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836616537
Side View
Table 60.0%Crown 36.9°Girdle: STK-THKPavilion 39°Culet: NoneDepth 68.1%

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: $3,760 USD|Low: $721 USD|High: $5,380 USD|Avg: $2,108 USD|-30.1%
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
October 30, 2026
Retailer 4$721 USD
Retailer 8$793 USD
Retailer 2$809 USD
Retailer 14$905 USD
Retailer 5$992 USD
Retailer 10$1,171 USD
Retailer 15$1,199 USD
Retailer 11$1,265 USD
Retailer 12$1,347 USD
Retailer 17$1,593 USD
Retailer 6$2,406 USD
Retailer 3$2,530 USD
Retailer 7$2,611 USD
Retailer 16$3,092 USD
Retailer 9$3,400 USD
Retailer 13$3,610 USD
Brilliant Earth$3,760 USD

15 data points across 17 retailers

17 retailers$721 USD to $3,760 USD

A
Cheapest Retailer
-
$721 USD
Final sale: no returns
Retailer 2
-
$793 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$809 USD
£637 GBP
View
A
Retailer 4
-
$905 USD
View
A
Retailer 5
-
$992 USD
View
A
Retailer 6
-
$1,171 USD
£922 GBP
View
A
Retailer 7
-
$1,199 USD
View
A
Retailer 8
-
$1,265 USD
€1,205 EUR
View
A
Retailer 9
-
$1,347 USD
ZAR 21,761 ZAR
View
A
Retailer 10
-
$1,593 USD
View
B+
Retailer 11
-
$2,406 USD
View
B+
Retailer 12
-
$2,530 USD
View
B+
Retailer 13
-
$2,611 USD
SGD 3,529 SGD
View
B+
Retailer 14
-
$3,092 USD
£2,435 GBP
View
B
Retailer 15
-
$3,400 USD
View
B
Retailer 16
-
$3,610 USD
View
Most Expensive
B
Brilliant Earth
21861632A · Oct 30
$3,760 USD
View
16 more retailers have this diamond
Prices start from $721 USDSave up to $3,039 USD

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
1.86ct Cushion
$721 USD