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Cushion|Lab Grown|GCAL

2.55ct G SI1 Cushion Lab Grown Diamond

VG • G/SI1 • GCAL 330900351

Shape and cutting style on the report: Cushion modified brilliant

Certificate GCAL 330900351

Diamond specifications and retailer prices

From £289 GBP
$388 USD
As of November 1, 2026
Save £1,999 GBP (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,288 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 2.55ct lab-grown cushion diamond

This 2.55ct 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 GCAL 330900351. Listed at 11 retailers as of November 1, 2026, with prices from £289 to £2,288, a £1,999 spread on the same certified stone. Do Amore Diamonds lists it at £2,288. 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

2.55
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33°
Pavilion angle32°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 330900351
Dimensions9.15 × 7.34 × 4.76 mm
L/W Ratio1.25
Culet sizeNone
Top View
9.15 mm7.34 mm2.55 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGCAL 330900351
Side View
Table 57.0%Crown 33°Girdle: MED-VTKPavilion 32°Culet: NoneDepth 64.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £2,288 GBP|Low: £268 GBP|High: £2,288 GBP|Avg: £922 GBP|+7.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9£289 GBP
Retailer 10£320 GBP
Retailer 11£475 GBP
Retailer 7£489 GBP
Retailer 4£558 GBP
Retailer 6£1,058 GBP
Retailer 2£1,088 GBP
Retailer 8£1,248 GBP
Retailer 3£1,250 GBP
Retailer 5£1,380 GBP
Do Amore Diamonds£2,288 GBP

42 data points across 11 retailers

11 retailers£289 GBP to £2,288 GBP

B+
Cheapest Retailer
-
£289 GBP
$388 USD
Final sale: no returns
Retailer 2
-
£320 GBP
$429 USD
View
Price last confirmed 8 days ago
B
Retailer 3
-
£475 GBP
$638 USD
View
A
Retailer 4
-
£489 GBP
$656 USD
View
B+
Retailer 5
-
£558 GBP
View
B
Retailer 6
-
£1,058 GBP
CA$1,971 CAD
View
B
Retailer 7
-
£1,088 GBP
View
B
Retailer 8
-
£1,248 GBP
$1,675 USD
View
B
Retailer 9
-
£1,250 GBP
$1,678 USD
View
B
Retailer 10
-
£1,380 GBP
View
Most Expensive
B
Do Amore Diamonds
27-9513C04E8 · Nov 2
£2,288 GBP
$3,070 USD
View
10 more retailers have this diamond
Prices start from £289 GBPSave up to £1,999 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
2.55ct Cushion
£289 GBP