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Cushion|Lab Grown|IGI

1.86ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG828664278

Shape and cutting style on the report: Square cushion antique cut

Certificate IGI LG828664278

Diamond specifications and retailer prices

From £1,002 GBP
$1,342 USD
As of October 31, 2026
Save £6,006 GBP (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £7,008 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG828664278 or 828664278. Listed at 10 retailers as of October 31, 2026, with prices from £1,002 to £7,008, a £6,006 spread on the same certified stone. Do Amore Diamonds lists it at £7,008. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.86
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828664278
Dimensions7.78 × 7.41 × 4.49 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizeLarge
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
7.78 mm7.41 mm1.86 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828664278
Side View
Table 57.0%Crown 36.3°Girdle: MED-STKPavilion 39.9°Culet: LargeDepth 60.6%

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: Oct 31
Current: £7,008 GBP|Low: £1,002 GBP|High: £7,008 GBP|Avg: £2,725 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 8£1,002 GBP
Retailer 7£1,025 GBP
Retailer 10£1,508 GBP
Retailer 2£1,594 GBP
Retailer 6£1,616 GBP
Retailer 5£2,826 GBP
Retailer 9£2,888 GBP
Retailer 4£3,654 GBP
Retailer 3£4,009 GBP
Do Amore Diamonds£7,008 GBP

35 data points across 10 retailers

10 retailers£1,002 GBP to £7,008 GBP

A
Cheapest Retailer
-
£1,002 GBP
$1,342 USD
Retailer 2
-
£1,025 GBP
$1,373 USD
View
Price last confirmed 14 days ago
Retailer 3
-
£1,508 GBP
$2,020 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£1,594 GBP
View
B+
Retailer 5
-
£1,616 GBP
$2,165 USD
View
B+
Retailer 6
-
£2,826 GBP
$3,787 USD
View
B
Retailer 7
-
£2,888 GBP
$3,869 USD
View
B
Retailer 8
-
£3,654 GBP
View
B
Retailer 9
-
£4,009 GBP
$5,371 USD
View
Most Expensive
B
Do Amore Diamonds
20-E98518 · Oct 31
£7,008 GBP
$9,390 USD
View
9 more retailers have this diamond
Prices start from £1,002 GBPSave up to £6,006 GBP

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
£1,002 GBP