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Cushion|Lab Grown|IGI

1.89ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG800677462

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800677462

Diamond specifications and retailer prices

From £668 GBP
$895 USD
As of October 29, 2026
Save £3,437 GBP (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,105 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.89ct lab-grown cushion diamond

This 1.89ct 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 LG800677462 or 800677462. Listed at 10 retailers as of October 29, 2026, with prices from £668 to £4,105, a £3,437 spread on the same certified stone. Do Amore Diamonds lists it at £4,105. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800677462
Dimensions8.30 × 6.69 × 4.39 mm
L/W Ratio1.24
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
8.30 mm6.69 mm1.89 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800677462
Side View
Table 62.0%Crown 33.8°Girdle: ThickPavilion 35.2°Culet: NoneDepth 65.6%

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: £4,105 GBP|Low: £513 GBP|High: £5,441 GBP|Avg: £2,276 GBP|-24.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 5£668 GBP
Retailer 7£672 GBP
Retailer 11£719 GBP
Retailer 6£877 GBP
Retailer 10£963 GBP
Retailer 4£998 GBP
Retailer 9£2,461 GBP
Retailer 8£2,717 GBP
Retailer 2£3,142 GBP
Do Amore Diamonds£4,105 GBP
Retailer 3£4,873 GBP

28 data points across 11 retailers

10 retailers£668 GBP to £4,105 GBP

A
Cheapest Retailer
-
£668 GBP
$895 USD
A
Retailer 2
-
£672 GBP
$901 USD
View
A
Retailer 3
-
£719 GBP
$964 USD
View
Final sale: no returns
A
Retailer 4
-
£877 GBP
$1,175 USD
View
A
Retailer 5
-
£963 GBP
$1,290 USD
View
A
Retailer 6
-
£998 GBP
€1,274 EUR
View
Retailer 7
-
£2,461 GBP
View
Price last confirmed 13 days ago
Retailer 8
-
£2,717 GBP
$3,640 USD
View
Price last confirmed 9 days ago
B
Retailer 9
-
£3,142 GBP
$4,210 USD
View
Most Expensive
B
Do Amore Diamonds
27-CB9E6602F · Oct 30
£4,105 GBP
$5,500 USD
View
9 more retailers have this diamond
Prices start from £668 GBPSave up to £3,437 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
1.89ct Cushion
£668 GBP