Cushion|Lab Grown|IGI

1.99ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG811638673

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG811638673

Diamond specifications and retailer prices

From £641 GBP
As of October 30, 2026
Save £3,278 GBP (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,918 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.99ct lab-grown cushion diamond

This 1.99ct 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 LG811638673 or 811638673. Listed at 9 retailers as of October 29, 2026, with prices from £641 to £3,918, a £3,278 spread on the same certified stone. Do Amore Diamonds lists it at £3,918. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.99
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811638673
Dimensions8.77 × 6.33 × 4.30 mm
L/W Ratio1.39
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
8.77 mm6.33 mm1.99 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811638673
Side View
Table 62.0%Crown 31.7°Girdle: STK-VTKPavilion 36.5°Culet: NoneDepth 67.9%

Caratlytics Score

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A+
Exceptional
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: £3,918 GBP|Low: £572 GBP|High: £4,717 GBP|Avg: £1,814 GBP|-7.7%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 15
October 31, 2026
Retailer 3£572 GBP
Retailer 9£641 GBP
Retailer 13£840 GBP
Retailer 11£884 GBP
Retailer 14£1,276 GBP
Retailer 2£1,313 GBP
Retailer 4£1,410 GBP
Retailer 7£1,447 GBP
Retailer 15£1,472 GBP
Retailer 12£1,732 GBP
Retailer 5£2,127 GBP
Retailer 10£2,393 GBP
Retailer 6£2,893 GBP
Retailer 8£3,299 GBP
Do Amore Diamonds£3,918 GBP

21 data points across 15 retailers

9 retailers£641 GBP to £3,918 GBP

A+
Cheapest Retailer
-
£641 GBP
A
Retailer 2
-
£840 GBP
$1,126 USD
View
A
Retailer 3
-
£884 GBP
$1,185 USD
View
A
Retailer 4
-
£1,313 GBP
$1,759 USD
View
Retailer 5
-
£1,472 GBP
ZAR 31,863 ZAR
View
Price last confirmed 48 days ago
B+
Retailer 6
-
£1,732 GBP
$2,321 USD
View
B+
Retailer 7
-
£2,393 GBP
View
B
Retailer 8
-
£3,299 GBP
$4,420 USD
View
Most Expensive
B
Do Amore Diamonds
27-BD8846304 · Oct 29
£3,918 GBP
$5,250 USD
View
8 more retailers have this diamond
Prices start from £641 GBPSave up to £3,278 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+
1.99ct Cushion
£641 GBP