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Cushion|Lab Grown|IGI

2.60ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG801674914

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

Certificate IGI LG801674914

Diamond specifications and retailer prices

From £244 GBP
$325 USD
As of October 28, 2026
Save £2,670 GBP (92%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,914 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.6ct lab-grown cushion diamond

This 2.6ct lab-grown cushion sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG801674914 or 801674914. Listed at 15 retailers as of October 28, 2026, with prices from £244 to £2,914, a £2,670 spread on the same certified stone. Brilliant Earth lists it at £2,914. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.60
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801674914
Dimensions8.15 × 8.03 × 4.73 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.15 mm8.03 mm2.60 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801674914
Side View
Table 67.0%Crown 34.2°Girdle: STK-THKPavilion 33.4°Culet: NoneDepth 58.9%

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 28
Current: £2,914 GBP|Low: £231 GBP|High: £3,004 GBP|Avg: £782 GBP
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
October 30, 2026
Retailer 15£244 GBP
Retailer 7£256 GBP
Retailer 2£340 GBP
Retailer 13£345 GBP
Retailer 4£364 GBP
Retailer 9£445 GBP
Retailer 8£479 GBP
Retailer 11£555 GBP
Retailer 14£628 GBP
Retailer 3£869 GBP
Retailer 5£908 GBP
Retailer 10£1,092 GBP
Retailer 12£1,114 GBP
Retailer 6£1,536 GBP
Brilliant Earth£2,914 GBP

36 data points across 15 retailers

15 retailers£244 GBP to £2,914 GBP

A
Cheapest Retailer
-
£244 GBP
$325 USD
Final sale: no returns
A
Retailer 2
-
£256 GBP
$341 USD
View
A
Retailer 3
-
£340 GBP
View
A
Retailer 4
-
£345 GBP
$460 USD
View
B+
Retailer 5
-
£364 GBP
$485 USD
View
A
Retailer 6
-
£445 GBP
€565 EUR
View
A
Retailer 7
-
£479 GBP
View
A
Retailer 8
-
£555 GBP
$739 USD
View
A
Retailer 9
-
£628 GBP
$836 USD
View
B+
Retailer 10
-
£869 GBP
SGD 1,564 SGD
View
B
Retailer 11
-
£908 GBP
$1,209 USD
View
B
Retailer 12
-
£1,092 GBP
View
B
Retailer 13
-
£1,114 GBP
$1,484 USD
View
Retailer 14
-
£1,536 GBP
$2,045 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
20573624A · Oct 29
£2,914 GBP
$3,880 USD
View
14 more retailers have this diamond
Prices start from £244 GBPSave up to £2,670 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
2.60ct Cushion
£244 GBP