CaratHunter
Plans
Cushion|Lab Grown|IGI

1.00ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG680561269

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG680561269

Diamond specifications and retailer prices

From £293 GBP
$393 USD
As of October 30, 2026
Save £811 GBP (73%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,105 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG680561269 or 680561269. Listed at 4 retailers as of October 30, 2026, with prices from £293 to £1,105, a £811 spread on the same certified stone. Do Amore Diamonds lists it at £1,105. 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

1.00
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle35.6°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG680561269
Dimensions7.09 × 5.33 × 3.45 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
Partial inscription on girdle. As Grown - No indication of post-growth treatment.. This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process.
Top View
7.09 mm5.33 mm1.00 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG680561269
Side View
Table 61.0%Crown 35.6°Girdle: MED-THKPavilion 36°Culet: NoneDepth 64.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,105 GBP|Low: £225 GBP|High: £1,105 GBP|Avg: £514 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 7£225 GBP
Retailer 3£293 GBP
Retailer 6£341 GBP
Retailer 4£344 GBP
Retailer 5£376 GBP
Retailer 8£579 GBP
Retailer 2£858 GBP
Do Amore Diamonds£1,105 GBP

11 data points across 8 retailers

4 retailers£293 GBP to £1,105 GBP

B+
Cheapest Retailer
-
£293 GBP
$393 USD
B+
Retailer 2
-
£344 GBP
$461 USD
View
B
Retailer 3
-
£858 GBP
View
Most Expensive
C
Do Amore Diamonds
7-1676454 · Oct 31
£1,105 GBP
$1,480 USD
View
3 more retailers have this diamond
Prices start from £293 GBPSave up to £811 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+
1.00ct Cushion
£293 GBP