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Cushion|Lab Grown|IGI

3.10ct F FL Cushion Lab Grown Diamond

ID • F/FL • IGI LG804650291

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

Certificate IGI LG804650291

Diamond specifications and retailer prices

From £1,796 GBP
As of November 5, 2026
Save £5,567 GBP (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £7,363 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804650291 or 804650291. Listed at 10 retailers as of November 4, 2026, with prices from £1,796 to £7,363, a £5,567 spread on the same certified stone. Do Amore Diamonds lists it at £7,363. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.10
Carat
F
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804650291
Dimensions8.91 × 8.14 × 5.18 mm
L/W Ratio1.09
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
8.91 mm8.14 mm3.10 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804650291
Side View
Table 63.0%Crown 33.2°Girdle: STK-THKPavilion 37.1°Culet: NoneDepth 63.6%

Caratlytics Score

How it works →
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: Nov 5
Current: £7,363 GBP|Low: £1,796 GBP|High: £12,659 GBP|Avg: £4,995 GBP|-41.8%
Do Amore Diamonds
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
November 5, 2026
Retailer 2£1,796 GBP
Retailer 14£1,959 GBP
Retailer 10£1,959 GBP
Retailer 3£2,131 GBP
Retailer 15£3,220 GBP
Retailer 13£3,512 GBP
Retailer 9£3,567 GBP
Retailer 8£3,904 GBP
Retailer 4£4,112 GBP
Retailer 5£4,233 GBP
Retailer 6£4,549 GBP
Retailer 12£4,619 GBP
Retailer 11£5,282 GBP
Do Amore Diamonds£7,363 GBP
Retailer 7£9,185 GBP

26 data points across 15 retailers

10 retailers£1,796 GBP to £7,363 GBP

A
Cheapest Retailer
-
£1,796 GBP
A
Retailer 2
-
£1,959 GBP
View
A
Retailer 3
-
£1,959 GBP
View
A
Retailer 4
-
£2,131 GBP
View
Final sale: no returns
B+
Retailer 5
-
£3,512 GBP
View
B+
Retailer 6
-
£3,567 GBP
View
B+
Retailer 7
-
£3,904 GBP
View
Retailer 8
-
£4,619 GBP
View
Price last confirmed 8 days ago
B
Retailer 9
-
£5,282 GBP
View
Most Expensive
B
Do Amore Diamonds
27-9E1AA3E28 · Nov 4
£7,363 GBP
$9,940 USD
View
9 more retailers have this diamond
Prices start from £1,796 GBPSave up to £5,567 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
3.10ct Cushion
£1,796 GBP