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Cushion|Lab Grown|IGI

1.87ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG662455746

Shape and cutting style on the report: Square cushion cut

Certificate IGI LG662455746

Diamond specifications and retailer prices

From £234 GBP
$314 USD
As of October 29, 2026
Save £1,840 GBP (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,075 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG662455746 or 662455746. Listed at 19 retailers as of October 29, 2026, with prices from £234 to £2,075, a £1,840 spread on the same certified stone. Brilliant Earth lists it at £2,075. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662455746
Dimensions7.18 × 7.05 × 4.75 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.18 mm7.05 mm1.87 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662455746
Side View
Table 61.0%Crown 36°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 67.4%

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: Oct 29
Current: £2,075 GBP|Low: £190 GBP|High: £2,179 GBP|Avg: £668 GBP|-4.5%
Brilliant Earth
Retailer 2
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Retailer 7
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Retailer 11
Retailer 12
Retailer 13
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Retailer 19
October 31, 2026
Retailer 4£234 GBP
Retailer 9£261 GBP
Retailer 15£272 GBP
Retailer 18£290 GBP
Retailer 19£290 GBP
Retailer 17£325 GBP
Retailer 14£407 GBP
Retailer 12£433 GBP
Retailer 10£472 GBP
Retailer 2£513 GBP
Retailer 7£581 GBP
Retailer 16£852 GBP
Retailer 3£933 GBP
Retailer 8£968 GBP
Retailer 6£1,116 GBP
Retailer 11£1,162 GBP
Retailer 13£1,170 GBP
Retailer 5£1,319 GBP
Brilliant Earth£2,075 GBP

37 data points across 19 retailers

19 retailers£234 GBP to £2,075 GBP

A
Cheapest Retailer
-
£234 GBP
$314 USD
A
Retailer 2
-
£261 GBP
$350 USD
View
Final sale: no returns
A
Retailer 3
-
£272 GBP
$364 USD
View
A
Retailer 4
-
£290 GBP
$389 USD
View
A
Retailer 5
-
£290 GBP
$389 USD
View
Retailer 6
-
£325 GBP
View
Price last confirmed 14 days ago
A
Retailer 7
-
£407 GBP
$545 USD
View
A
Retailer 8
-
£433 GBP
€552 EUR
View
A
Retailer 9
-
£472 GBP
$633 USD
View
A
Retailer 10
-
£513 GBP
View
A
Retailer 11
-
£581 GBP
$779 USD
View
B+
Retailer 12
-
£852 GBP
$1,141 USD
View
B
Retailer 13
-
£933 GBP
$1,250 USD
View
B
Retailer 14
-
£968 GBP
$1,296 USD
View
B
Retailer 15
-
£1,116 GBP
$1,495 USD
View
B
Retailer 16
-
£1,162 GBP
$1,556 USD
View
B
Retailer 17
-
£1,170 GBP
View
B
Retailer 18
-
£1,319 GBP
$1,767 USD
View
Most Expensive
B
Brilliant Earth
20358781A · Oct 30
£2,075 GBP
$2,780 USD
View
18 more retailers have this diamond
Prices start from £234 GBPSave up to £1,840 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
£234 GBP