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Cushion|Lab Grown|IGI

1.00ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846662339

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846662339

Diamond specifications and retailer prices

From £338 GBP
As of October 30, 2026
Save £1,789 GBP (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,127 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846662339 or 846662339. Listed at 9 retailers as of October 30, 2026, with prices from £338 to £2,127, a £1,789 spread on the same certified stone. Do Amore Diamonds lists it at £2,127. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662339
Dimensions7.80 × 4.76 × 3.39 mm
L/W Ratio1.64
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
7.80 mm4.76 mm1.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662339
Side View
Table 57.0%Crown 32.8°Girdle: STK-VTKPavilion 33.6°Culet: NoneDepth 71.2%

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 30
Current: £2,127 GBP|Low: £338 GBP|High: £2,127 GBP|Avg: £878 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 5£338 GBP
Retailer 3£347 GBP
Retailer 9£347 GBP
Retailer 8£482 GBP
Retailer 6£490 GBP
Retailer 2£554 GBP
Retailer 4£1,254 GBP
Retailer 7£1,287 GBP
Do Amore Diamonds£2,127 GBP

11 data points across 9 retailers

9 retailers£338 GBP to £2,127 GBP

A
Cheapest Retailer
-
£338 GBP
A
Retailer 2
-
£347 GBP
$465 USD
View
A
Retailer 3
-
£347 GBP
$465 USD
View
A
Retailer 4
-
£440 GBP
$590 USD
View
A
Retailer 5
-
£482 GBP
$646 USD
View
A
Retailer 6
-
£554 GBP
€707 EUR
View
B
Retailer 7
-
£1,254 GBP
$1,680 USD
View
B
Retailer 8
-
£1,287 GBP
View
Most Expensive
B
Do Amore Diamonds
27-0567D2E37 · Oct 31
£2,127 GBP
$2,850 USD
View
8 more retailers have this diamond
Prices start from £338 GBPSave up to £1,789 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
1.00ct Cushion
£338 GBP