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Cushion|Lab Grown|IGI

2.05ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • IGI LG756507542

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG756507542

Diamond specifications and retailer prices

From £228 GBP
$305 USD
As of October 31, 2026
Save £981 GBP (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,209 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.05ct lab-grown cushion diamond

This 2.05ct lab-grown cushion sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG756507542 or 756507542. Listed at 13 retailers as of October 29, 2026, with prices from £228 to £1,209, a £981 spread on the same certified stone. Brilliant Earth lists it at £1,209. 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

2.05
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756507542
Dimensions8.08 × 6.69 × 4.42 mm
L/W Ratio1.21
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.08 mm6.69 mm2.05 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756507542
Side View
Table 64.0%Crown 34.3°Girdle: THK-VTKPavilion 33.5°Culet: NoneDepth 66.1%

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: £1,209 GBP|Low: £165 GBP|High: £1,209 GBP|Avg: £604 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
October 31, 2026
Retailer 4£228 GBP
Retailer 9£252 GBP
Retailer 7£381 GBP
Retailer 2£407 GBP
Retailer 12£417 GBP
Retailer 6£443 GBP
Retailer 11£463 GBP
Retailer 3£532 GBP
Retailer 10£643 GBP
Retailer 5£849 GBP
Retailer 8£1,016 GBP
Retailer 13£1,063 GBP
Brilliant Earth£1,209 GBP

41 data points across 13 retailers

13 retailers£228 GBP to £1,209 GBP

A
Cheapest Retailer
-
£228 GBP
$305 USD
Final sale: no returns
A
Retailer 2
-
£252 GBP
$338 USD
View
A
Retailer 3
-
£381 GBP
$510 USD
View
A
Retailer 4
-
£407 GBP
€519 EUR
View
B+
Retailer 5
-
£417 GBP
$559 USD
View
A
Retailer 6
-
£443 GBP
View
A
Retailer 7
-
£463 GBP
$621 USD
View
A
Retailer 8
-
£532 GBP
$713 USD
View
B+
Retailer 9
-
£643 GBP
$861 USD
View
B+
Retailer 10
-
£849 GBP
$1,137 USD
View
B
Retailer 11
-
£1,016 GBP
View
B
Retailer 12
-
£1,063 GBP
$1,425 USD
View
Most Expensive
B
Brilliant Earth
17406455A · Oct 29
£1,209 GBP
$1,620 USD
View
12 more retailers have this diamond
Prices start from £228 GBPSave up to £981 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
2.05ct Cushion
£228 GBP