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Cushion|Lab Grown|IGI

1.84ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG818669969

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

Certificate IGI LG818669969

Diamond specifications and retailer prices

From £549 GBP
$735 USD
As of October 30, 2026
Save £2,526 GBP (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,545 GBP at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 1.84ct lab-grown cushion diamond

This 1.84ct 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 LG818669969 or 818669969. Listed at 18 retailers as of October 30, 2026, with a 461% 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

1.84
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818669969
Dimensions7.18 × 7.00 × 4.47 mm
L/W Ratio1.03
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
7.18 mm7.00 mm1.84 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818669969
Side View
Table 61.0%Crown 36.4°Girdle: MED-THKPavilion 34.6°Culet: NoneDepth 63.9%

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: £3,075 GBP|Low: £504 GBP|High: £4,403 GBP|Avg: £1,620 GBP|-30.2%
Brilliant Earth
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
Retailer 16
Retailer 17
October 31, 2026
Retailer 13£549 GBP
Retailer 9£551 GBP
Retailer 14£646 GBP
Retailer 15£857 GBP
Retailer 2£874 GBP
Retailer 12£960 GBP
Retailer 11£962 GBP
Retailer 17£1,153 GBP
Retailer 6£1,208 GBP
Retailer 5£1,626 GBP
Retailer 3£1,806 GBP
Retailer 10£1,906 GBP
Retailer 7£1,984 GBP
Retailer 16£2,428 GBP
Retailer 8£2,664 GBP
Retailer 4£2,796 GBP
Brilliant Earth£3,075 GBP

31 data points across 17 retailers

18 retailers£549 GBP to £3,075 GBP

A
Cheapest Retailer
-
£549 GBP
$735 USD
Final sale: no returns
Retailer 2
-
£551 GBP
$738 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
£646 GBP
$865 USD
View
A
Retailer 4
-
£857 GBP
$1,148 USD
View
A
Retailer 5
-
£874 GBP
View
A
Retailer 6
-
£960 GBP
ZAR 20,783 ZAR
View
A
Retailer 7
-
£962 GBP
€1,228 EUR
View
A
Retailer 8
-
£1,153 GBP
$1,545 USD
View
A
Retailer 9
-
£1,208 GBP
$1,619 USD
View
B+
Retailer 10
-
£1,626 GBP
View
B+
Retailer 11
-
£1,806 GBP
$2,420 USD
View
B+
Retailer 12
-
£1,906 GBP
$2,554 USD
View
B+
Retailer 13
-
£1,984 GBP
SGD 3,592 SGD
View
B+
Retailer 14
-
£2,428 GBP
View
Retailer 15
-
£2,664 GBP
$3,570 USD
View
Price last confirmed 10 days ago
B+
Retailer 16
-
£2,796 GBP
$3,746 USD
View
B
Retailer 17
-
£3,075 GBP
$4,120 USD
View
Most Expensive
Brilliant Earth
21094796A · Sep 28
£4,545 GBP
$6,090 USD
View
Price last confirmed 32 days ago
17 more retailers have this diamond
Prices start from £549 GBPSave up to £2,526 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
1.84ct Cushion
£549 GBP