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Cushion|Lab Grown|IGI

2.66ct G SI1 Cushion Lab Grown Diamond

VG • G/SI1 • IGI LG741528327

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG741528327

Diamond specifications and retailer prices

From £928 GBP
$1,245 USD
As of November 2, 2026
Save £1,838 GBP (66%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,766 GBP at Taylor and Hart · As of November 2, 2026
View at Taylor and Hart

About this 2.66ct lab-grown cushion diamond

This 2.66ct lab-grown cushion sits in the two to three carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG741528327 or 741528327. Listed at 6 retailers as of November 2, 2026, with prices from £928 to £2,766, a £1,838 spread on the same certified stone. Taylor and Hart lists it at £2,766. 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

2.66
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle30.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741528327
Dimensions8.06 × 7.28 × 4.79 mm
L/W Ratio1.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Indications of post-growth treatment.
Top View
8.06 mm7.28 mm2.66 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741528327
Side View
Table 65.0%Crown 35.6°Girdle: THK-ETKPavilion 30.2°Culet: NoneDepth 65.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,356 GBP|Low: £796 GBP|High: £2,914 GBP|Avg: £2,021 GBP|+9.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
November 2, 2026
Retailer 5£796 GBP
Retailer 4£928 GBP
Retailer 1£1,356 GBP
Retailer 3£2,049 GBP
Retailer 2£2,755 GBP
Taylor and Hart£2,766 GBP
Retailer 6£2,914 GBP

30 data points across 7 retailers

6 retailers£928 GBP to £2,766 GBP

Retailer 1
-
£796 GBP
$1,068 USD
Price last confirmed 21 days ago
B
Retailer 2
-
£928 GBP
$1,245 USD
View
B
Retailer 3
-
£1,356 GBP
€1,733 EUR
View
B
Retailer 4
-
£2,049 GBP
ZAR 44,410 ZAR
View
C
Retailer 5
-
£2,755 GBP
View
Most Expensive
C
Taylor and Hart
MQ3AJZY · Nov 2
£2,766 GBP
$3,712 USD
View
5 more retailers have this diamond
Prices start from £928 GBPSave up to £1,838 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.

B
2.66ct Cushion
£928 GBP