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Cushion|Lab Grown|IGI

1.87ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG800613981

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800613981

Diamond specifications and retailer prices

From £4,158 GBP
$5,571 USD
As of October 30, 2026
Save £2,508 GBP (38%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £9,295 GBP at MOH London · As of October 29, 2026
View at MOH London

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 LG800613981 or 800613981. Listed at 13 retailers as of October 26, 2026, with a 60% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle39.8°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800613981
Dimensions8.73 × 5.89 × 3.98 mm
L/W Ratio1.48
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.73 mm5.89 mm1.87 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800613981
Side View
Table 67.0%Crown 39.8°Girdle: MED-STKPavilion 32.6°Culet: NoneDepth 67.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £9,295 GBP|Low: £4,158 GBP|High: £17,390 GBP|Avg: £8,424 GBP|-8.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 13£4,158 GBP
Retailer 11£4,386 GBP
Retailer 12£4,544 GBP
Retailer 2£5,152 GBP
Retailer 6£5,822 GBP
Retailer 3£6,438 GBP
Retailer 8£6,666 GBP
Retailer 7£8,352 GBP
Retailer 10£8,561 GBP
MOH London£9,295 GBP
Retailer 9£13,252 GBP
Retailer 4£15,731 GBP
Retailer 5£16,213 GBP

42 data points across 13 retailers

13 retailers£4,158 GBP to £6,666 GBP

B+
Cheapest Retailer
-
£4,158 GBP
$5,571 USD
B
Retailer 2
-
£4,386 GBP
$5,877 USD
View
Final sale: no returns
Retailer 3
-
£4,544 GBP
$6,088 USD
View
Price last confirmed 15 days ago
B
Retailer 4
-
£5,152 GBP
View
B
Retailer 5
-
£5,822 GBP
View
B
Retailer 6
-
£6,438 GBP
View
B
Retailer 7
-
£6,666 GBP
$8,932 USD
View
Retailer 8
-
£8,352 GBP
ZAR 180,792 ZAR
View
Price under review
Retailer 9
-
£8,561 GBP
$11,471 USD
View
Price under review
Most Expensive
MOH London
LG800613981 · Oct 29
£9,295 GBP
View
Price under review
9 more retailers have this diamond
Prices start from £4,158 GBPSave up to £2,508 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.

B+
1.87ct Cushion
£4,158 GBP