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Cushion|Lab Grown|IGI

1.87ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG768630863

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

Certificate IGI LG768630863

Diamond specifications and retailer prices

From £382 GBP
$512 USD
As of October 30, 2026
Save £3,601 GBP (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,983 GBP at Yadav Diamonds · As of October 30, 2026
View at Yadav Diamonds

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768630863 or 768630863. Listed at 14 retailers as of October 30, 2026, with prices from £382 to £3,983, a £3,601 spread on the same certified stone. Yadav Diamonds lists it at £3,983. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630863
Dimensions4.88 × 7.06 × 7.03 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
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
4.88 mm7.06 mm1.87 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630863
Side View
Table 58.0%Crown 36.2°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 69.4%

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 30
Current: £647 GBP|Low: £382 GBP|High: £3,411 GBP|Avg: £1,408 GBP|-14.1%
Retailer 1
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 31, 2026
Retailer 5£382 GBP
Retailer 10£502 GBP
Retailer 3£541 GBP
Retailer 12£596 GBP
Retailer 1£647 GBP
Retailer 4£902 GBP
Retailer 8£970 GBP
Retailer 13£1,107 GBP
Retailer 9£1,537 GBP
Retailer 6£2,391 GBP
Retailer 2£2,444 GBP
Retailer 11£2,702 GBP
Retailer 7£2,858 GBP

30 data points across 13 retailers

14 retailers£382 GBP to £3,983 GBP

A
Cheapest Retailer
-
£382 GBP
$512 USD
Final sale: no returns
A
Retailer 2
-
£502 GBP
$672 USD
View
A
Retailer 3
-
£541 GBP
$725 USD
View
A
Retailer 4
-
£596 GBP
$799 USD
View
A
Retailer 5
-
£647 GBP
€826 EUR
View
A
Retailer 6
-
£902 GBP
$1,209 USD
View
A
Retailer 7
-
£970 GBP
A$1,999 AUD
View
A
Retailer 8
-
£1,107 GBP
$1,484 USD
View
B+
Retailer 9
-
£1,537 GBP
View
B+
Retailer 10
-
£2,391 GBP
A$4,928 AUD
View
Retailer 11
-
£2,444 GBP
$3,275 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
£2,702 GBP
$3,620 USD
View
B
Retailer 13
-
£2,858 GBP
$3,830 USD
View
Most Expensive
B
Yadav Diamonds
12301854 · Oct 30
£3,983 GBP
$5,337 USD
View
13 more retailers have this diamond
Prices start from £382 GBPSave up to £3,601 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
£382 GBP