CaratHunter
Plans
Cushion|Lab Grown|IGI

1.90ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG811638094

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG811638094

Diamond specifications and retailer prices

From £518 GBP
$694 USD
As of October 30, 2026
Save £2,661 GBP (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,362 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.9ct lab-grown cushion diamond

This 1.9ct 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 LG811638094 or 811638094. Listed at 17 retailers as of October 30, 2026, with a 514% 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

1.90
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811638094
Dimensions9.11 × 6.11 × 4.19 mm
L/W Ratio1.49
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
9.11 mm6.11 mm1.90 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811638094
Side View
Table 62.0%Crown 34°Girdle: MED-THKPavilion 33.8°Culet: NoneDepth 68.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,362 GBP|Low: £514 GBP|High: £4,553 GBP|Avg: £1,677 GBP|-1.2%
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
Retailer 16
October 30, 2026
Retailer 12£518 GBP
Retailer 8£609 GBP
Retailer 13£657 GBP
Retailer 15£874 GBP
Retailer 9£893 GBP
Retailer 10£912 GBP
Retailer 11£980 GBP
Retailer 16£1,222 GBP
Retailer 6£1,237 GBP
Retailer 4£1,661 GBP
Retailer 5£1,819 GBP
Retailer 3£1,842 GBP
Retailer 7£1,884 GBP
Retailer 14£2,478 GBP
Retailer 2£3,179 GBP
Rare Carat£3,362 GBP

27 data points across 16 retailers

17 retailers£518 GBP to £3,179 GBP

A
Cheapest Retailer
-
£518 GBP
$694 USD
Final sale: no returns
Retailer 2
-
£609 GBP
$816 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
£657 GBP
$880 USD
View
A
Retailer 4
-
£874 GBP
$1,171 USD
View
A
Retailer 5
-
£893 GBP
View
A
Retailer 6
-
£912 GBP
€1,164 EUR
View
A
Retailer 7
-
£980 GBP
ZAR 21,205 ZAR
View
A
Retailer 8
-
£1,222 GBP
$1,637 USD
View
A
Retailer 9
-
£1,237 GBP
$1,657 USD
View
B+
Retailer 10
-
£1,661 GBP
View
B+
Retailer 11
-
£1,749 GBP
$2,344 USD
View
B+
Retailer 12
-
£1,819 GBP
$2,437 USD
View
B+
Retailer 13
-
£1,842 GBP
$2,468 USD
View
B+
Retailer 14
-
£1,884 GBP
SGD 3,411 SGD
View
B+
Retailer 15
-
£2,478 GBP
View
B
Retailer 16
-
£3,179 GBP
$4,260 USD
View
Most Expensive
Rare Carat
PD0946380JJ811 · Oct 21
£3,362 GBP
$4,505 USD
View
Price last confirmed 9 days ago
16 more retailers have this diamond
Prices start from £518 GBPSave up to £2,661 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
1.90ct Cushion
£518 GBP