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Cushion|Lab Grown|IGI

1.99ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG840635068

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840635068

Diamond specifications and retailer prices

From £581 GBP
$778 USD
As of October 31, 2026
Save £2,793 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,519 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

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 LG840635068 or 840635068. Listed at 15 retailers as of October 30, 2026, with a 481% 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

1.99
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840635068
Dimensions8.82 × 6.33 × 4.38 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
8.82 mm6.33 mm1.99 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840635068
Side View
Table 62.0%Crown 33.8°Girdle: STK-THKPavilion 39.4°Culet: NoneDepth 69.2%

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 31
Current: £3,519 GBP|Low: £581 GBP|High: £4,053 GBP|Avg: £1,621 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 5£581 GBP
Retailer 10£672 GBP
Retailer 14£724 GBP
Retailer 2£949 GBP
Retailer 15£965 GBP
Retailer 11£995 GBP
Retailer 13£1,089 GBP
Retailer 8£1,325 GBP
Retailer 3£1,340 GBP
Retailer 6£1,949 GBP
Retailer 4£2,044 GBP
Retailer 7£2,096 GBP
Retailer 12£2,510 GBP
Retailer 9£3,373 GBP
Rare Carat£3,519 GBP

16 data points across 15 retailers

15 retailers£581 GBP to £3,373 GBP

A
Cheapest Retailer
-
£581 GBP
$778 USD
Final sale: no returns
A
Retailer 2
-
£672 GBP
View
A
Retailer 3
-
£724 GBP
$970 USD
View
A
Retailer 4
-
£949 GBP
View
A
Retailer 5
-
£965 GBP
$1,293 USD
View
A
Retailer 6
-
£995 GBP
€1,270 EUR
View
A
Retailer 7
-
£1,089 GBP
ZAR 23,577 ZAR
View
A
Retailer 8
-
£1,325 GBP
$1,776 USD
View
A
Retailer 9
-
£1,340 GBP
$1,796 USD
View
B+
Retailer 10
-
£1,949 GBP
$2,611 USD
View
B+
Retailer 11
-
£2,044 GBP
$2,738 USD
View
B+
Retailer 12
-
£2,096 GBP
SGD 3,796 SGD
View
B+
Retailer 13
-
£2,510 GBP
View
B
Retailer 14
-
£3,373 GBP
$4,520 USD
View
Most Expensive
Rare Carat
PE0686350JJ840 · Oct 21
£3,519 GBP
$4,715 USD
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from £581 GBPSave up to £2,793 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
£581 GBP