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Cushion|Lab Grown|IGI

3.10ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG803623457

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG803623457

Diamond specifications and retailer prices

From £1,846 GBP
$2,474 USD
As of October 29, 2026
Save £4,838 GBP (72%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £6,684 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG803623457 or 803623457. Listed at 13 retailers as of October 29, 2026, with prices from £1,846 to £6,684, a £4,838 spread on the same certified stone. Taylor and Hart lists it at £6,684. 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
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803623457
Dimensions10.17 × 7.68 × 5.27 mm
L/W Ratio1.32
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
10.17 mm7.68 mm3.10 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803623457
Side View
Table 61.0%Crown 34.1°Girdle: MED-STKPavilion 38°Culet: NoneDepth 68.6%

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 29
Current: £2,633 GBP|Low: £1,846 GBP|High: £10,410 GBP|Avg: £4,598 GBP|-36.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
October 31, 2026
Retailer 12£1,846 GBP
Retailer 7£2,037 GBP
Retailer 11£2,052 GBP
Retailer 8£2,508 GBP
Retailer 1£2,633 GBP
Retailer 5£2,896 GBP
Retailer 4£2,947 GBP
Retailer 9£2,987 GBP
Retailer 3£3,628 GBP
Retailer 2£5,107 GBP
Retailer 6£5,217 GBP
Retailer 10£5,676 GBP
Taylor and Hart£6,684 GBP

42 data points across 13 retailers

13 retailers£1,846 GBP to £6,684 GBP

A
Cheapest Retailer
-
£1,846 GBP
$2,474 USD
Final sale: no returns
A
Retailer 2
-
£2,037 GBP
$2,730 USD
View
A
Retailer 3
-
£2,052 GBP
$2,749 USD
View
A
Retailer 4
-
£2,508 GBP
$3,360 USD
View
A
Retailer 5
-
£2,633 GBP
View
A
Retailer 6
-
£2,896 GBP
€3,696 EUR
View
Retailer 7
-
£2,947 GBP
$3,949 USD
View
Price last confirmed 18 days ago
A
Retailer 8
-
£2,987 GBP
$4,002 USD
View
B+
Retailer 9
-
£3,628 GBP
View
B+
Retailer 10
-
£5,107 GBP
$6,843 USD
View
B+
Retailer 11
-
£5,217 GBP
View
B+
Retailer 12
-
£5,676 GBP
$7,605 USD
View
Most Expensive
B
Taylor and Hart
8IXV5GF · Oct 30
£6,684 GBP
$8,956 USD
View
12 more retailers have this diamond
Prices start from £1,846 GBPSave up to £4,838 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
£1,846 GBP