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Cushion|Lab Grown|IGI

1.87ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG825667157

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG825667157

Diamond specifications and retailer prices

From £558 GBP
$747 USD
As of October 30, 2026
Save £2,570 GBP (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,127 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.87ct lab-grown cushion diamond

This 1.87ct 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 LG825667157 or 825667157. Listed at 17 retailers as of October 30, 2026, with prices from £558 to £3,127, a £2,570 spread on the same certified stone. Brilliant Earth lists it at £3,127. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.87
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825667157
Dimensions6.94 × 6.94 × 4.55 mm
L/W Ratio1.00
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
6.94 mm6.94 mm1.87 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825667157
Side View
Table 62.0%Crown 35.5°Girdle: MED-STKPavilion 34.1°Culet: NoneDepth 65.6%

Caratlytics Score

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A+
Exceptional
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 30
Current: £3,127 GBP|Low: £558 GBP|High: £4,627 GBP|Avg: £1,558 GBP|-30.1%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 31, 2026
Retailer 3£558 GBP
Retailer 9£560 GBP
Retailer 14£657 GBP
Retailer 6£734 GBP
Retailer 15£869 GBP
Retailer 2£888 GBP
Retailer 11£927 GBP
Retailer 13£975 GBP
Retailer 16£1,188 GBP
Retailer 7£1,228 GBP
Retailer 5£1,649 GBP
Retailer 17£1,834 GBP
Retailer 10£1,937 GBP
Retailer 8£2,014 GBP
Retailer 4£2,131 GBP
Retailer 12£2,477 GBP
Brilliant Earth£3,127 GBP

33 data points across 17 retailers

17 retailers£558 GBP to £3,127 GBP

A+
Cheapest Retailer
-
£558 GBP
$747 USD
Final sale: no returns
Retailer 2
-
£560 GBP
$750 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
£657 GBP
$880 USD
View
A
Retailer 4
-
£734 GBP
$983 USD
View
A
Retailer 5
-
£869 GBP
$1,164 USD
View
A
Retailer 6
-
£888 GBP
View
A
Retailer 7
-
£927 GBP
€1,183 EUR
View
A
Retailer 8
-
£975 GBP
ZAR 21,107 ZAR
View
A
Retailer 9
-
£1,188 GBP
$1,592 USD
View
A
Retailer 10
-
£1,228 GBP
$1,646 USD
View
B+
Retailer 11
-
£1,649 GBP
View
B+
Retailer 12
-
£1,834 GBP
$2,457 USD
View
B+
Retailer 13
-
£1,937 GBP
$2,596 USD
View
B+
Retailer 14
-
£2,014 GBP
SGD 3,647 SGD
View
B+
Retailer 15
-
£2,131 GBP
$2,855 USD
View
B+
Retailer 16
-
£2,477 GBP
View
Most Expensive
B
Brilliant Earth
21434396A · Oct 30
£3,127 GBP
$4,190 USD
View
16 more retailers have this diamond
Prices start from £558 GBPSave up to £2,570 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+
1.87ct Cushion
£558 GBP