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Cushion|Lab Grown|IGI

2.09ct D SI1 Cushion Lab Grown Diamond

GD • D/SI1 • IGI LG761515275

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

Certificate IGI LG761515275

Diamond specifications and retailer prices

From £208 GBP
$279 USD
As of October 31, 2026
Save £1,090 GBP (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,299 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.09ct lab-grown cushion diamond

This 2.09ct lab-grown cushion sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG761515275 or 761515275. Listed at 11 retailers as of October 31, 2026, with prices from £208 to £1,299, a £1,090 spread on the same certified stone. Brilliant Earth lists it at £1,299. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.09
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle43.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761515275
Dimensions7.37 × 7.29 × 5.18 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
7.37 mm7.29 mm2.09 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761515275
Side View
Table 65.0%Crown 33°Girdle: STK-THKPavilion 43.8°Culet: NoneDepth 71.1%

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 31
Current: £1,299 GBP|Low: £208 GBP|High: £1,336 GBP|Avg: £612 GBP|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7£208 GBP
Retailer 3£282 GBP
Retailer 6£310 GBP
Retailer 5£414 GBP
Retailer 4£434 GBP
Retailer 8£544 GBP
Retailer 9£779 GBP
Retailer 2£923 GBP
Brilliant Earth£1,299 GBP

40 data points across 9 retailers

11 retailers£208 GBP to £1,299 GBP

A
Cheapest Retailer
-
£208 GBP
$279 USD
Final sale: no returns
A
Retailer 2
-
£282 GBP
View
B+
Retailer 3
-
£310 GBP
$415 USD
View
B+
Retailer 4
-
£414 GBP
€528 EUR
View
Retailer 5
-
£425 GBP
View
Price last confirmed 10 days ago
B+
Retailer 6
-
£434 GBP
View
B+
Retailer 7
-
£544 GBP
$729 USD
View
B
Retailer 8
-
£779 GBP
$1,044 USD
View
B
Retailer 9
-
£923 GBP
View
Retailer 10
-
£1,113 GBP
$1,492 USD
View
Price last confirmed 89 days ago
Most Expensive
B
Brilliant Earth
20614110A · Oct 31
£1,299 GBP
$1,740 USD
View
10 more retailers have this diamond
Prices start from £208 GBPSave up to £1,090 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
2.09ct Cushion
£208 GBP